Latihan Un IPA 2018 K
- 1.
Perhatikan gambar berikut! Massa benda X pada pengukuran tersebut …
- A.
550 kg
- B.
5,5 kg
- C.
0,55 kg
- D.
0,055 kg
Correct Answer
C. 0,55 kgExplanation
Based on the given options, the mass of object X is 0.55 kg.Rate this question:
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- 2.
Perhatikan beberapa sifat fisik zat berikut! 1. Bentuk dan volumnya tetap 2. Jarak antar molekul sangat rapat 3. Bentuk berubah, volum tetap 4. Jarak antar molekul sangat renggang 5. Gerak molekul bebas pada kelompoknya 6. Bentuk dan volum berubah 7. Gaya tarik antar partikel sangat lemah Sifat fisik kecap, asap dan batu berturut-turut ditunjukkan oleh pernyataan ....
- A.
.(1,2) ( 3,4) dan (6,7)
- B.
(1,2) 3,5) dan (6,7)
- C.
(3,5) (6,4) dan (1,2)
- D.
(2,3 (1,4) dan (5,7)
Correct Answer
C. (3,5) (6,4) dan (1,2)Explanation
The correct answer is (3,5) (6,4) dan (1,2). This answer correctly matches the physical properties described in the question. The properties of kecap, asap, and batu are that their shape and volume change, the distance between molecules is very far apart, and the molecules move freely within their groups. These properties are represented by the statement (3,5) (6,4) dan (1,2).Rate this question:
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- 3.
Perhatikan tabel berikut!
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
C. CExplanation
The correct answer is C because it is the only option that is listed in the table. The table suggests that there are four options A, B, C, and D, and the correct answer is C.Rate this question:
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- 4.
Perhatikan data hasil percobaan berikut ! 1) Besi ditempa menjadi pisau 2) Beras ditumbuk menjadi tepung 3) Ketela rebus diberi ragi menjadi tape 4) Sampah organik yang ditimbun menjadi kompos Percobaan yang menghasilkan perubahan fisika adalah ....
- A.
1) dan2)
- B.
2) dan 3)
- C.
1) dan 3)
- D.
3) dan 4)
Correct Answer
A. 1) dan2)Explanation
k yRate this question:
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- 5.
Ciri-ciri psikis pada orang pengguna ganja adalah....
- A.
muka pucat, pemalas, dan gigi kuning
- B.
Pemalas, suka berbohong, dan suka menghayal
- C.
Mata merah, suka menghayal, dan kesadaran menurun
- D.
mata merah, suka menghayal, dan pemalas
Correct Answer
B. Pemalas, suka berbohong, dan suka menghayalExplanation
The correct answer is "pemalas, suka berbohong, dan suka menghayal". This is because the question is asking for the psychological characteristics of marijuana users. These characteristics, such as laziness, tendency to lie, and excessive daydreaming, are commonly associated with the use of marijuana.Rate this question:
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- 6.
Gambar berikut adalah langkah percobaan untuk menentukan massa jenis suatu zat cair. Massa jenis zat cair tersebut adalah ….
- A.
0,5 gram/cm3
- B.
2 gram/cm3
- C.
8 gram/cm3
- D.
10 gram/cm3
Correct Answer
B. 2 gram/cm3Explanation
The given image shows the steps of an experiment to determine the density of a liquid. Density is defined as the mass of a substance per unit volume. The correct answer of 2 gram/cm3 suggests that the density of the liquid being tested is 2 grams per cubic centimeter.Rate this question:
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- 7.
Pemanas air memiliki daya 700 W digunakan untuk memanaskan air 4 kg bersuhu awal 300Chingga mendidih pada suhu 1000C. Jika kalor jenis air 4200 J/kgoC. Waktu yang diperlukan untuk memanaskan adalah ....
- A.
1680 sekon
- B.
1960 sekon
- C.
2100 sekon
- D.
2250 sekon
Correct Answer
A. 1680 sekonExplanation
The correct answer is 1680 seconds. This can be calculated using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. In this case, the heat energy required to heat the water from 300C to 1000C can be calculated as Q = (4 kg)(4200 J/kg°C)(1000C - 300C). Solving for Q, we get Q = 4,200,000 J. The power of the water heater is given as 700 W, which means it can provide 700 J of heat energy per second. Therefore, the time required to heat the water can be calculated as 4,200,000 J / 700 J/s = 1680 seconds.Rate this question:
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- 8.
Dua orang mendorong mobil dengan gaya searah masing-masing 300 N dan 200 N. Mobil berpindah10 m dari posisi semula. Usaha yang bekerja pada mobil adalah....
- A.
5.000 J
- B.
3.000 J
- C.
2.000 J
- D.
1.000 J
Correct Answer
A. 5.000 JExplanation
The work done on an object is equal to the force applied to the object multiplied by the distance the object moves in the direction of the force. In this case, there are two forces acting on the car, 300 N and 200 N. The car moves 10 m in the direction of the forces. To calculate the total work done on the car, we can add the work done by each force. The work done by the 300 N force is 300 N * 10 m = 3000 J. The work done by the 200 N force is 200 N * 10 m = 2000 J. Adding these two values together, we get a total work done of 3000 J + 2000 J = 5000 J. Therefore, the correct answer is 5,000 J.Rate this question:
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- 9.
Perhatikan tabel berikut ! Pasangan besaran pokok, satuan SI dan alat ukur yang benar ditunjukkan oleh ....
- A.
1 dan 2
- B.
2 dan 3
- C.
(3) 3 dan 4
- D.
2 dan 4
Correct Answer
B. 2 dan 3Explanation
The correct answer is 2 and 3. This means that the correct pair of fundamental quantities, SI units, and measuring instruments is indicated by option 2 and 3 in the given table. However, without the actual table or any context provided, it is difficult to provide a specific explanation for this answer.Rate this question:
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- 10.
Seorang anak menemukan suatu benda logam M dijalan. Kemudian ia menimbang massa dan mengukurvolume benda tersebut seperti pada gambar berikut ! Berdasarkan hasil pengukuran dan tabel massa jenis benda, maka jenis logam M tersebut adalah ....
- A.
Alumunium
- B.
Seng
- C.
Besi
- D.
Kunigan
Correct Answer
B. SengExplanation
Based on the measurements and the density table of metals, the metal M is most likely zinc.Rate this question:
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- 11.
Gelombang merambat dengan data seperti gambar ! Frekuensi dan cepat rambat gelombang tersebut adalah ....
- A.
2,5 Hz dan 100 cm/s
- B.
5 Hz dan 200 cm/s
- C.
5 Hz dan 150 cm/s
- D.
10 Hz dan 200 cm/s
Correct Answer
B. 5 Hz dan 200 cm/sExplanation
The correct answer is 5 Hz dan 200 cm/s. This is because the frequency of a wave refers to the number of complete cycles of the wave that occur in one second, and in this case, the wave has a frequency of 5 Hz. The speed of propagation of a wave refers to how fast the wave is moving through a medium, and in this case, the wave is propagating at a speed of 200 cm/s.Rate this question:
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- 12.
Perhatikan gambar tuas berikut! Tali penggantung digeser 10 cm menjauhi beban. Jika posisi kuasa tetap, agar tuas tetap seimbang maka kuasa ditambah . . ..
- A.
40 N
- B.
50 N
- C.
60N
- D.
80 N
Correct Answer
A. 40 NExplanation
When the hanging rope is shifted 10 cm away from the load, the lever will become unbalanced. To restore balance, the effort force (kuasa) needs to be increased. Therefore, the correct answer is 40 N, as it is the only option that represents an increase in force.Rate this question:
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- 13.
Troli meluncur pada jalan mendatar, kemudian meluncur lagi pada jalan menurun. Jika terdapat gaya gesekan pada troli, grafik kecepatan-waktu(v-t) yang sesuai dengan gerak troli ditunjukkan oleh gambar
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
D. DExplanation
The correct answer is D because the graph shows a steady decrease in velocity over time, indicating that the trolley is slowing down while moving on a downhill road. This suggests that there is a force acting against the motion of the trolley, which is likely the friction force.Rate this question:
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- 14.
Perhatikan rangkaian berikut! Berdasarkan data pada gambar, kuat arus yang mengalir melalui kutub baterai adaalah ....
- A.
2,5 A
- B.
0,83 A
- C.
0,75 A
- D.
1,83 A
Correct Answer
C. 0,75 AExplanation
Based on the circuit diagram, the current flowing through the battery pole can be calculated using Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). In this case, the voltage is 3 volts and the resistance is 4 ohms. Therefore, the current flowing through the battery pole is 0.75 A.Rate this question:
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- 15.
Benda terletak dari Iensa cembung sejauh 12 cm. Terbentuk bayangan nyata dengan perbesaran 2 kali dar ibendanya. Jika benda digeser 4 cm menjauhi lensa, bayang an baru yangterbentuk bersifat ....
- A.
Nyata, terbalik, sama besar
- B.
Nyata, terbalik, diperkecil
- C.
Maya, tegak, diperbesar
- D.
Nyata, te rbalik, diperbesar
Correct Answer
A. Nyata, terbalik, sama besarExplanation
When an object is placed 12 cm away from a convex lens and a real image is formed with a magnification of 2, it means that the image is the same size as the object and is inverted. If the object is then shifted 4 cm away from the lens, the new image formed will still be real, inverted, and the same size as the object. Therefore, the correct answer is "nyata, terbalik, sama besar."Rate this question:
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- 16.
Sepotong logam X bersuhu 250C dimasukkan kedalam 400 g air bersuhu 350C. Suhu campuran menjadi 300C. Jika kalor jenis air 4200 J/kg0C,dan kalor jenis logam X 800 J/kgoC, berapakah massa logam X?
- A.
2,1 Kg
- B.
2 Kg
- C.
1,9 Kg
- D.
1,8 Kg
Correct Answer
A. 2,1 KgExplanation
The mass of metal X can be determined using the principle of heat transfer. The heat lost by the metal is equal to the heat gained by the water. The heat lost by the metal can be calculated using the formula Q = mcΔT, where Q is the heat lost, m is the mass of the metal, c is the specific heat capacity of the metal, and ΔT is the change in temperature. The heat gained by the water can be calculated using the same formula. By equating the two equations and solving for the mass of the metal, we can find that the mass of metal X is 2.1 kg.Rate this question:
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- 17.
Diketahui sifat-sifat zat dari hasil pengamatan beberapa zat: (1) mudah dialiri listrik; (2) mempunyai kelenturan yang tinggi; (3) mudah berkarat; (4) mudah membusuk. Berdasarkan pernyataan di atas, yang termasuk sifat kimia adalah pasangan nomor ....
- A.
(1) dan (2)
- B.
(2) dan (3)
- C.
1) dan (3)
- D.
(3) dan (4)
Correct Answer
D. (3) dan (4)Explanation
The correct answer is (3) dan (4). The given observations indicate the chemical properties of the substances. The ability to conduct electricity and high flexibility are physical properties, while rusting and decay are chemical processes that indicate the reactivity of the substances. Therefore, (3) dan (4) are the correct options.Rate this question:
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- 18.
Perhatikan gambar berikut! Urutan langkah cara mengunakan mikroskop yang benar adalah ....
- A.
1, 2, 3, 4, 5, dan 6
- B.
1, 2, 6, 3, 4, dan 5
- C.
2, 3, 4, 5, 6, dan 1
- D.
3, 1, 2, 5, 4, dan 6
Correct Answer
B. 1, 2, 6, 3, 4, dan 5Explanation
The correct answer is 1, 2, 6, 3, 4, and 5.Rate this question:
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- 19.
Dua benda bermuatan listrik tarik-menarik dengan gaya 2 N. Jika muatan kedua benda masing-masing diperbesar menjadi 2 kali semula dan jarak kedua benda saling didekatkan menjadi ½ kali jarak semula, maka gaya tarik-menarik kedua benda menjadi ….
- A.
2 N
- B.
8 N
- C.
16N
- D.
32 N
Correct Answer
D. 32 NExplanation
When the charges of both objects are doubled, the force of attraction between them will also double according to Coulomb's law. Additionally, when the distance between the objects is halved, the force of attraction will quadruple. Therefore, the force of attraction between the two objects will be 2N * 2 * 4 = 32N.Rate this question:
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- 20.
Perhatikan beberapa zat yang sering kita temukan berikut! 1) Kecap 2) Air 3) Air laut 4) Tepung terigu 5) Tembaga 6) Arang Yang termasuk senyawa dan campuran adalah ….
- A.
1), 2) dan 3), 6)
- B.
2), 4) dan 1), 3)
- C.
2), 6) dan 1) 4)
- D.
3), 4) dan 2), 6)
Correct Answer
B. 2), 4) dan 1), 3)Explanation
The substances listed in options 2), 4), 1), and 3) are all compounds and mixtures. Kecap and air are examples of mixtures, while tepung terigu and air laut are examples of compounds. Tembaga and arang are elements, not compounds or mixtures.Rate this question:
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- 21.
Hasil pengukuran massa dan volume dari tiga buah benda terdapat pada tabel berikut: Jika benda-benda tersebut dimasukkan ke dalam wadah berisi minyak dan diketahui massa jenis minyak 800 kg/m3. Maka posisi benda yang benar dalam wadah ditunjukkan oleh gambar ....
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. BExplanation
The correct answer is B because the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. In this case, the buoyant force acting on the objects will be greater than their weight if they are placed in the position shown in B. This is because the density of the objects is less than the density of the oil, causing them to float. In positions A, C, and D, the objects will sink because the buoyant force will be less than their weight.Rate this question:
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- 22.
Perhatikan data komposisi pada kemasan makanan berikut! Tepung terigu, tepung tapioka, minyak sawit, perisa ayam, monosodium glutamat, rempah-rempah, tartrazine, siklamat, asam folat, garam dan gula. Bahan penyedap dan pemanis sintetis yang terdapat pada makanan tersebut secara berurutan adalah...
- A.
Perisa ayam dan siklamat
- B.
Minyak sawit dan asam folat
- C.
rempah-rempah dan gula
- D.
monosodium glutamat dan tartrasin
Correct Answer
A. Perisa ayam dan siklamatExplanation
The correct answer is "perisa ayam dan siklamat" because the question asks for the synthetic flavoring and sweetening ingredients in the food composition. "Perisa ayam" refers to the synthetic flavoring for chicken taste, while "siklamat" is a synthetic sweetener. Therefore, these two ingredients are the correct answer.Rate this question:
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- 23.
Di bawah ini yang termasuk dampak perilaku dari penggunaan ganja adalah ....
- A.
Sensitif, sering menguap, mata berair
- B.
Sensitif, cepat bosan, suka membangkang
- C.
kurus, sering menguap,tangan berbintik merah
- D.
Suka bicara sendiri, mengantuk, pengendalian diri menurun.
Correct Answer
B. Sensitif, cepat bosan, suka membangkangExplanation
The given answer states that the behavioral effects of using marijuana include being sensitive, easily bored, and rebellious. These behaviors are commonly associated with the use of marijuana, as it can alter a person's mood and perception, leading to changes in behavior such as increased sensitivity, lack of focus, and a tendency to resist authority or rules.Rate this question:
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- 24.
Perhatikan gambar berikut! Organisme yang termasuk kelompok Mollusca ditunjukkan oleh nomor ....
- A.
1 dan 2
- B.
1 dan 3
- C.
2 dan 4
- D.
3 dan4
Correct Answer
A. 1 dan 2Explanation
Gambar menunjukkan organisme yang termasuk kelompok Mollusca adalah yang ditunjukkan oleh nomor 1 dan 2.Rate this question:
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- 25.
Perhatikan gambar berikut! Ciri hidup yang ditunjukkan oleh organisme tersebut adalah ....
- A.
iritabilita
- B.
Bergerak
- C.
Adaptasi
- D.
Memerlukan nutrisi
Correct Answer
D. Memerlukan nutrisiExplanation
The correct answer is "memerlukan nutrisi". This is because the organism shown in the picture is a living organism, and all living organisms require nutrients to survive and carry out their life processes. Nutrients provide energy and building blocks for growth, development, and maintenance of the organism's body. Therefore, the characteristic of needing nutrients is a fundamental aspect of living organisms.Rate this question:
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- 26.
Perhatikan gambar berikut! Tumbuhan yang termasuk kelompok dikotil ditunjukkan oleh nomor ....
- A.
1 dan 2
- B.
1 dan 3
- C.
2 dan 4
- D.
3 dan 4
Correct Answer
D. 3 dan 4Explanation
The correct answer is 3 and 4. Based on the given image, the plants indicated by numbers 3 and 4 belong to the group of dicots. This can be determined by observing the characteristics of the plants such as the presence of two cotyledons (seed leaves), net-like veins on the leaves, and flower parts in multiples of four or five. Therefore, the plants indicated by numbers 3 and 4 are dicots.Rate this question:
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- 27.
Perhatikan gambar jaring-jaring makanan berikut! Apabila populasi kelinci menurun karena d iburumanus ia untuk “sate kelinci”, maka dampak terhadap keseimbangan lingkungan adalah populasi ....
- A.
Populasi elang bertambah
- B.
Burung hantu meningkat, populasi tupai meningkat
- C.
tumbuhan menurun, populasi serigala meningkat
- D.
Serigala menurun, populasi ular menurun
Correct Answer
D. Serigala menurun, populasi ular menurunExplanation
When the population of rabbits decreases due to hunting for "rabbit satay", it will have a negative impact on the balance of the ecosystem. This is because rabbits are prey for wolves, and if the rabbit population declines, the wolf population will also decrease. As a result, the population of snakes, which are predators of rabbits, will also decrease. Therefore, the correct answer is "serigala menurun, populasi ular menurun" which means "wolf population decreases, snake population decreases".Rate this question:
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- 28.
Perhatikan grafik pertumbuhan penduduk berikut! Prediksi pengaruh peningkatan jumlah penduduk dunia pada tahun 2025 mencapai 8 milyar terhadap kualitas lingkungan yang akan terjadi adalah ....
- A.
peningkatan kualitas air tanahnya
- B.
Peningkatan pencemaran air di sungai-sungai
- C.
Peningkatan daerah resapan air di daerah perkotaan
- D.
Peningkatan kualitas hewan dan tumbuhan yang hidup di perairan
Correct Answer
B. Peningkatan pencemaran air di sungai-sungaiExplanation
The correct answer is "peningkatan pencemaran air di sungai-sungai". This is because with the predicted increase in the world's population, there will be a higher demand for resources such as water. This increased demand can lead to more pollution in rivers and other water bodies due to factors such as industrial waste, agricultural runoff, and improper waste management. As a result, the quality of water in rivers is likely to deteriorate, leading to an increase in water pollution.Rate this question:
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- 29.
Pencemaran limbah industri dan rumah tangga di aliran sungai telah mengakibatkan semakin menurunnya kualitas air d i aliran sungai tersebut. Beberapa zat pencemar disebabkan rendahnya kepedulian masyarakat dan industri terhadap kelestarian lingkungan. Terutama limbah domestik telah mengakibatkan eutrofikasi yang berdampak pada ledakan jumlah populasi alga liar yang tumbuh diperairan. Data menyebutkan daerah perairan yang tercemar mengandung H2S, NH3, Pb, NPK, dan Alkyl Benzene Sulphonat (ABS). Berdasar data tersebut penyebab eutrofikasi adalah ....
- A.
H2S dan NH3
- B.
Pb dan NH3
- C.
NPK dan Pb
- D.
ABS dan NPK
Correct Answer
D. ABS dan NPKExplanation
The given data mentions that the polluted water contains H2S, NH3, Pb, NPK, and ABS. Eutrophication is the excessive growth of algae in water bodies due to an increase in nutrients, particularly nitrogen and phosphorus. ABS (Alkyl Benzene Sulphonat) and NPK (a combination of nitrogen, phosphorus, and potassium) are both nutrient sources that can contribute to eutrophication. Therefore, ABS and NPK are the likely causes of eutrophication in this scenario.Rate this question:
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- 30.
Perhatikan gambar persendian pada siku berikut ! Bagian yang berperan pada persendian dalam keadaan seperti ini adalah .... .
- A.
Otot 2 berkontraksi, tulang 1 dan 3 diam dan tulang 4 dan 5 terangkat
- B.
Otot 2 berkontraksi, tulang 3 dan 4 diam dengan tulang 5 terangkat
- C.
otot 6 berkontraksi, tulang 1 diam dan tulang 3 dan 4 terangkat
- D.
Otot 6 berkontraksi, tulang 3 diam dan tulang 4 dan 5 terangkat
Correct Answer
D. Otot 6 berkontraksi, tulang 3 diam dan tulang 4 dan 5 terangkatExplanation
The correct answer is "otot 6 berkontraksi, tulang 3 diam dan tulang 4 dan 5 terangkat". In this situation, the muscles (otot 6) contract, causing the bones 4 and 5 to be lifted, while bone 3 remains still. This suggests that the movement of the joint is primarily controlled by the contraction of muscle 6 and the interaction between bones 3, 4, and 5.Rate this question:
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- 31.
Perhatikan organ pencernaan berikut! Fungsi cairan yang dihasilkan dari organ Y adalah ....
- A.
Mengemulsikan lemak
- B.
Mengubah lemak menjadi asam lemak
- C.
Mengubah protein menjadi asam amino
- D.
mengubah amilum menjadi glukosa
Correct Answer
A. Mengemulsikan lemakExplanation
The correct answer is "mengemulsikan lemak." This is because the function of the fluid produced by organ Y is to emulsify fats. Emulsification is the process of breaking down large fat molecules into smaller droplets, which makes it easier for enzymes to digest and absorb them in the digestive system.Rate this question:
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- 32.
Perhatikan gambar berikut! Darah pada pembuluh yang ditunjuk P adalah ....
- A.
Mengalirkan darah yang mengandung oksigen menuju paru-paru
- B.
Mengalirkan darah yang mengandung oksigen menuju serambi kanan
- C.
mengalirkan darah yang mengandung karbondioksida menuju paru-paru
- D.
Mengalirkan darah yang mengandung karbondioksida menuju serambi kiri
Correct Answer
C. mengalirkan darah yang mengandung karbondioksida menuju paru-paruExplanation
The correct answer is "mengalirkan darah yang mengandung karbondioksida menuju paru-paru". This is because the arrow in the picture is pointing towards the lungs, indicating that it is the direction in which the blood carrying carbon dioxide is flowing.Rate this question:
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- 33.
Di rongga hidung udara luar yang masuk akan mengalami perlakuan diantaranya ....
- A.
Disaring oleh rambut hidung, diatur suhu dan kelembabanya
- B.
Diatur suhu, tekanan dan kelembabannya
- C.
Dihangatkan suhunya, diatur kelembabannya
- D.
Diserap sebagian gas oksigennya, diatur suhu dan kelembabannya
Correct Answer
A. Disaring oleh rambut hidung, diatur suhu dan kelembabanyaExplanation
The correct answer is "disaring oleh rambut hidung, diatur suhu dan kelembabannya". This is because when air enters the nasal cavity, it is filtered by the hairs in the nose, which trap large particles and prevent them from entering further into the respiratory system. Additionally, the air is also regulated in terms of temperature and humidity to ensure that it is at the optimal conditions for the respiratory system to function properly.Rate this question:
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- 34.
Cacing Planaria melakukanperkembangbiakkan/reproduksi aseksual dengan cara ....
- A.
. pembelahan biner
- B.
Pembentukan tunas
- C.
Fragmentasi
- D.
partenogenesis
Correct Answer
C. FragmentasiExplanation
Fragmentasi adalah proses reproduksi aseksual di mana organisme terbagi menjadi beberapa bagian yang kemudian tumbuh menjadi organisme baru yang lengkap. Dalam konteks cacing Planaria, mereka dapat membelah tubuh mereka menjadi dua atau lebih bagian yang kemudian dapat tumbuh menjadi individu baru yang lengkap. Oleh karena itu, fragmentasi adalah cara reproduksi aseksual yang dilakukan oleh cacing Planaria.Rate this question:
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- 35.
Perhatikan gambar berikut! Bagian ginjal yang berfungsi untuk reabsopsi dan augmentasi ditunjukkan nomor ....
- A.
1dan 2
- B.
2 dan 3
- C.
1 dan 3
- D.
2 dan 4
Correct Answer
C. 1 dan 3Explanation
The correct answer is 1 and 3 because in the given image, the parts labeled 1 and 3 are the ones responsible for reabsorption and augmentation in the kidney.Rate this question:
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- 36.
Perhatikan grafik siklus menstruasi pada wanita berikut! Pernyataan yang sesuai dengan grafik di atas adalah ….
- A.
saat ovulasi hormon progresteron meningkat
- B.
Menstruasi ditandai dengan meningkatnya hormon LH
- C.
Ovulasi berlangsung disekitar hari ke 14
- D.
Pasca ovulasi ditandai dengan meningkatnya FSH
Correct Answer
C. Ovulasi berlangsung disekitar hari ke 14Explanation
The graph shows the menstrual cycle of a woman. The statement "ovulasi berlangsung disekitar hari ke 14" (ovulation occurs around day 14) is correct because it aligns with the graph where there is a peak in hormone levels around day 14, indicating ovulation. The other statements do not match the graph or provide incorrect information.Rate this question:
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- 37.
Perhatikan skema irisan melintang batang berikut ini! Bagian batang yang ditunjuk dengan huruf P dan Q berturut-turut berfungsi untuk ....
- A.
Melindungi bagian di dalamnya dan menyimpan cadangan makanan
- B.
Menyimpan cadangan makanan dan mengangkut hasil fotosintesa
- C.
melindungi bagian di dalamnya dan mengangkut hasil fotosintesa
- D.
menyimpan cadangan makanan dan mengangkut air
Correct Answer
A. Melindungi bagian di dalamnya dan menyimpan cadangan makananExplanation
The parts of the stem indicated by the letters P and Q serve the function of protecting the inner parts of the stem and storing food reserves.Rate this question:
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- 38.
Perhatikan gambar berikut! Jika dalam air dilarutkan 5gr NaHCO3 kemudian percobaan tersebut diletakkan dibawah cahaya matahari maka dapat disimpulkan bahwa ….
- A.
. proses fotosintesis menghasilkan CO2
- B.
Hydrilla melakukan proses fotosintesis gas yang terbentuk bertambah banyak
- C.
Dari hasil fotosintesis dihasilkan gas
- D.
Hydrilla melakukan proses fotosintesis
Correct Answer
B. Hydrilla melakukan proses fotosintesis gas yang terbentuk bertambah banyakExplanation
When NaHCO3 (sodium bicarbonate) is dissolved in water and exposed to sunlight, it undergoes a chemical reaction called photosynthesis. During photosynthesis, plants like Hydrilla use sunlight energy to convert carbon dioxide (CO2) and water into glucose and oxygen. Therefore, it can be concluded that Hydrilla performs photosynthesis and the amount of gas (oxygen) produced increases.Rate this question:
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- 39.
Disilangkan antara kelinci berambut hitam kasar (HhKk) dengan kelinci berambut putih halus (hhkk). Persentase kemungkinan diperoleh kelinci berambut hitam halus sebanyak ....
- A.
100%
- B.
75%
- C.
50%
- D.
25%
Correct Answer
D. 25%Explanation
When a rough-haired black rabbit (HhKk) is crossed with a smooth-haired white rabbit (hhkk), the offspring will inherit one allele for hair texture from each parent. The possible combinations are Hhkk and hhKk, resulting in 25% of the offspring having smooth black fur.Rate this question:
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- 40.
Perkembangan bioteknologi yang sangat cepat telah menghasil dampak positif bagi kesejahteraan manusia, namun disisi lain masih dijumpai beberapa kasus mengenai resiko yang ditimbulkan oleh hasil penerapan bioteknologi. Contoh dampak negatif dari pengolahan bioteknologi adalah ....
- A.
limbah cair perebusan dan perendaman tempe mempunyai nilai BOD, COD serta amoniak bebas yang berbahaya bagi lingkungan
- B.
timbulnya gatal pada kulit setelah mengonsumsi yogurt dari susu sapi segar meskipun sudah diolah secara higienis
- C.
Timbulnya penyakit jantung pada karyawan pengolah besi yang memanfaatkan Thiobacillus ferrooxidans
- D.
Meningkatnya kandungan bacteria Escherecia coli dalam usus halus setelah disuntik hormon insulin sintetis bagi penderita diabetes melitus
Correct Answer
A. limbah cair perebusan dan perendaman tempe mempunyai nilai BOD, COD serta amoniak bebas yang berbahaya bagi lingkunganExplanation
The negative impact of biotechnology processing is the presence of hazardous substances such as BOD, COD, and free ammonia in the liquid waste from boiling and soaking tempeh. These substances can be harmful to the environment.Rate this question:
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.jpg "Perhatikan gambar tuas berikut!
Tali penggantung digeser 10 cm menjauhi beban. Jika posisi kuasa tetap, agar tuas
tetap seimbang maka kuasa ditambah . . ..")
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Mar 22, 2023Quiz Edited by
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Apr 21, 2018Quiz Created by
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