Form 2 Science - Plant Responses / Plant Responses
Plants respond to stimuli using electrical and chemical signals, similar to those of the endocrine system in humans. They need to do so in order to successfully survive. What do you know about plant response?
Questions and Answers
- 1.
Diagram below shows the apparatus set-up to investigate and identify the stimuli detected by the plants. Rajah di bawah menunjukkan susunan radas untuk menyiasat dan mengenalpasti rangsangan yang dikesan oleh tumbuhan. In space end of experiment in figure above, which is correct figure that can be drawn to show the direction of growth of the shoots after 4 days. Dalam ruangan akhir eksperimen dalam rajah di atas, rajah yang manakah betul yang boleh dilukis untuk menunjukkan arah pertumbuhan pucuk selepas 4 hari. A B C D
- A.
Pic A
- B.
Pic B
- C.
Pic C
- D.
Pic D
Correct Answer
C. Pic CExplanation
Based on the diagram, the shoots are growing towards the light source. In pic C, the shoots are shown growing towards the light source, which is the correct direction of growth for the shoots after 4 days.Rate this question:
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- 2.
Give one reason for the answer in question 1. Beri satu sebab bagi jawapan pada soalan 1.
Correct Answer
shoot responds to light
to get light
shoots respond to light
shoots grow to light
shoot grow to light
shoots grow to source of light
shoots respond to source of light
shoots sensitive to source of lightExplanation
Plants have a natural response to light called phototropism, where they grow towards a light source. This is because they need light for photosynthesis, the process by which they convert light energy into chemical energy to fuel their growth and development. Therefore, shoots respond to light in order to receive the necessary light energy for their growth.Rate this question:
- 3.
What type of tropism is shown by the shoots in queation 1? Apakah jenis tropisma yang ditunjukkan oleh pucuk dalam soalan 1?
Correct Answer
phototropism
fototropismaExplanation
The shoots in question 1 exhibit phototropism, which is a type of tropism where the plant grows towards or away from a light source. This response allows the plant to optimize its exposure to light for photosynthesis.Rate this question:
- 4.
State one importance of tropisma in question 1 to plants. Nyatakan satu kepentingan tropisma dalam soalan 1 kepada tumbuhan.
Correct Answer
enable plants to do photosynthesis
to do photosynthesis
photosynthesis
membenarkan tumbuhan menjalankan fotosintesis
untuk menjalankan fotosintesis
fotosintesis
with light plants can do the photosynthesis
tanpa cahaya tumbuhan tidak dapat menjalankan fotosintesis
without light plants can not do the photosynthesis
cahaya membantu tumbuhan menjalankan fotosintesisExplanation
Tropism enables plants to do photosynthesis. Photosynthesis is the process by which plants convert light energy into chemical energy, allowing them to produce glucose and oxygen. Tropism, specifically phototropism, is a plant's ability to grow towards or away from light sources. By growing towards light, plants can maximize their exposure to sunlight, which is essential for photosynthesis. Without light, plants cannot carry out photosynthesis and would not be able to produce the energy they need to survive and grow. Therefore, the importance of tropism in plants is that it enables them to carry out photosynthesis and obtain the energy they need for their metabolic processes.Rate this question:
- 5.
Diagram below shows the apparatus set-up to investigate and identify the stimuli detected by the plants. Rajah di bawah menunjukkan susunan radas unuk menyiasat dan mengenalpasti rangsangan yang dikesan oleh tumbuhan. In space end of experiment in figure above, which is arrow that can be drawn to show the direction of growth of the roots after 4 days. Dalam ruangan akhir eksperimen dalam rajah di atas, anak panah yang manakah betul yang boleh dilukis untuk menunjukkan arah pertumbuhan akar selepas 4 hari.
- A.
Arrow A
- B.
Arrow B
- C.
Arrow C
- D.
Arrow D
Correct Answer
A. Arrow AExplanation
Arrow A can be drawn to show the direction of growth of the roots after 4 days because the roots are growing towards the stimulus in the form of light. This is evident from the setup where the light source is placed at the top. The roots of the plant will naturally grow towards the light source in order to maximize their exposure to light for photosynthesis.Rate this question:
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- 6.
Diagram below shows the apparatus set-up to investigate and identify the stimuli detected by the plants. Rajah di bawah menunjukkan susunan radas unuk menyiasat dan mengenalpasti rangsangan yang dikesan oleh tumbuhan. Give one reason for the answer in question 5. Beri satu sebab bagi jawapan pada soalan 5.
Correct Answer
to get support
to get mineral
to get water and mineral
roots respond to gravity
roots respond to earth's pull of gravity
roots sensitiive to gravity
roots grow to gravity of earthExplanation
The correct answer is "to get support." This is because the diagram shows a plant with roots growing downwards into the soil. The roots of plants provide support for the plant by anchoring it in the ground and preventing it from falling over.Rate this question:
- 7.
Diagram below shows the apparatus set-up to investigate and identify the stimuli detected by the plants. Rajah di bawah menunjukkan susunan radas unuk menyiasat dan mengenalpasti rangsangan yang dikesan oleh tumbuhan. What type of tropism is shown by the shoots in figure above? Apakah jenis tropisma yang ditunjukkan oleh pucuk dalam rajah di atas?
Correct Answer
geotropism
geotropisma
positive geotropism
positif geotropismaExplanation
The shoots in the figure above are exhibiting geotropism, also known as gravitropism. Geotropism is a type of tropism where plants respond to the force of gravity by growing in the opposite direction. In this case, the shoots are growing upwards against the force of gravity, indicating positive geotropism.Rate this question:
- 8.
Diagram below shows the apparatus set-up to investigate and identify the stimuli detected by the plants. Rajah di bawah menunjukkan susunan radas unuk menyiasat dan mengenalpasti rangsangan yang dikesan oleh tumbuhan. State one importance of tropisma in question 7 to plants. Nyatakan satu kepentingan tropisma dalam soalan 7 kepada tumbuhan.
Correct Answer
enable plants to absorb mineral for photosynthesis
enable plants anchor firmly in soil
enable plants to absorb water in soil for photosynthesis
with gravity plant can anchor in soil to get water and mineral
without gravity plant can not anchor in soil to get water and mineral
anchor firmly in soil
mencengkam tanah
membolehkan tumbuhan menyerap mineral untuk fotosintesis
tumbuhan boleh mencengkam tanah
tumbuhan boleh menyerap air dalam tanah
dengan graviti tumbuhan boleh mencengkam tanah bagi menyerap air dan mineral
tanpa graviti tumbuhan tidak boleh mencengkam tanah untuk mendapatkan air dan mineral
enable plant to penetrate deep into soil to find mineral and water
with gravity plant can anchor in soil to get mineral
enable plant to penetrate deep into soil to find mineral
menjalar jauh ke dalam tanah untuk mencari mineral
menjalar jauh ke dalam tanah untuk mencari mineral dan airExplanation
Tropism is important to plants as it enables them to anchor firmly in the soil, absorb minerals for photosynthesis, and absorb water in the soil. With gravity, plants can anchor in the soil to obtain water and minerals, which are essential for their growth and survival. Without gravity, plants would not be able to anchor in the soil and obtain the necessary resources. Additionally, tropism also enables plants to penetrate deep into the soil to find minerals and water, further supporting their nutrient uptake and overall health.Rate this question:
- 9.
Diagram below shows the geminated seeds in two different container A and B. Dalam rajah berikut menunjukkan biji benih bercambah dalam dua bekas berbeza A dan B, What is the observation in figure above? (what do you see in the figure above) Apakah pemerhatian dalam rajah di atas. (apakah yang anda lihat dalam rajah di atas?) 1. Roots in controlled container grow ........................ 1. Akar dalam bekas kawalan tumbuh ...........................
Correct Answer
downwards
direct to water
towards water
to water
ke bawah
ke arah air
menghala ke arah airExplanation
The observation in the figure above is that the roots in the controlled container grow downwards and direct towards the water. This can be seen from the direction of the roots in container A, where they are growing towards the water source. The roots are growing downwards to reach the water, indicating that the roots are seeking water for growth and development.Rate this question:
- 10.
Diagram below shows the geminated seeds in two different container A and B. Dalam rajah berikut menunjukkan biji benih bercambah dalam dua bekas berbeza A dan B, What is the observation in figure above? (what do you see in the figure above) Apakah pemerhatian dalam rajah di atas. (apakah yang anda lihat dalam rajah di atas?) 2. Roots in beaker B grow ...................................... 2. Akar dalam bekas B tumbuh .............................................
Correct Answer
upwards
against gravity
bend to moist cotton
towards moist cotton
against anhychid calcium chloride
ke atas
berlawanan graviti
bengkok ke arah kapas lembap
menghala ke arah kapas lembap
menjauhi kalsium klorida terhidratExplanation
The observation in the figure above is that the roots in beaker B grow upwards against gravity, bend towards moist cotton, and bend away from anhydrous calcium chloride.Rate this question:
- 11.
Diagram below shows the geminated seeds in two different container A and B. Dalam rajah berikut menunjukkan biji benih bercambah dalam dua bekas berbeza A dan B, What is the inference for the diagram above? Apakah inferens/kesimpulan awal bagi rajah di atas? Container A, roots grow downwards and container B, roots grow upwards because both ..................................................... Bekas A, akar tumbuh ke bawah dan bekas B, akar tumbuh ke atas kerana kedua-duanya .....................................................
Correct Answer
sensitive to water
response towards water
response toward water
bend to water
grow to water
grow towards waterExplanation
The inference for the diagram above is that the geminated seeds in both container A and B are sensitive to water and respond by growing towards it.Rate this question:
- 12.
Diagram below shows the geminated seeds in empty container. Dalam rajah berikut menunjukkan biji benih bercambah dalam bekas kosong. Predict where will the radicles of seed grow? Ramalkan ke arah manakah radikel akan tumbuh?
Correct Answer
downwards
ke bawah
downward
ke arah bikar
ke arah bikar kosong
kebawahExplanation
The radicles of the seeds will grow downwards because gravity pulls them towards the ground. This is a common phenomenon in plant growth, where the radicle is the first part of the seedling to emerge and it helps anchor the plant and absorb water and nutrients from the soil.Rate this question:
- 13.
Diagram below shows the geminated seeds in empty container. Dalam rajah berikut menunjukkan biji benih bercambah dalam bekas kosong. What type of tropism is shown by the radicles in figure above based on prediction? Apakah jenis tropisma yang ditunjukkan oleh radikel dalam rajah di atas berdasarkan ramalan?
Correct Answer
geotropism
geotropisma
positive geotropism
geotropisma positifExplanation
The radicles in the figure above are showing geotropism, also known as positive geotropism. Geotropism is a type of tropism where plants respond to the force of gravity by growing in the direction of the gravitational pull. In this case, the radicles are growing downwards, towards the bottom of the container, which is the direction of gravity. This is a common response in plant roots, as they need to grow downwards in order to anchor the plant and absorb water and nutrients from the soil.Rate this question:
- 14.
Diagram below shows the geminated seeds in container that has silica. Dalam rajah berikut menunjukkan biji benih bercambah dalam bekas yang mengandungi silika. Predict where will the radicles of seed grow? Ramalkan ke arah manakah radikel akan tumbuh?
Correct Answer
upward
upwards
grow towards damp cotton
grow toward damp cotton
towards damp cotton
toward damp cotton
damp cotton
ke atas
keatas
tumbuh ke kapas basah
tumbuh ke kapas lembap
tumbuh ke kapas lembab
tumbuh ke arah kapas lembap
tumbuh ke arah kapas lembab
bengkok keatas
bengkok ke atas
bend to damp cotton
grow to cotton
opposite silica
bend to cotton
ke arah kapas
ke kapas
bengkok ke kapas
the roots will grow upwards
the root will grow upwardsExplanation
The radicles of the seed will grow upwards towards the damp cotton.Rate this question:
- 15.
Diagram below shows the geminated seeds in container that has silica. Dalam rajah berikut menunjukkan biji benih bercambah dalam bekas yang mengandungi silika. What type of tropism is shown by the radicles in figure above based on prediction? Apakah jenis tropisma yang ditunjukkan oleh radikel dalam rajah di atas berdasarkan ramalan?
Correct Answer
hidrotropisma
hydrotropism
hidrotropisma positif
positive hydrotropisma
negative geotropism
geotropisma negatifExplanation
The correct answer is hydrotropism. Hydrotropism is the growth or movement of an organism in response to water. In the figure, the radicles of the germinated seeds are shown growing towards the silica, which suggests that they are exhibiting hydrotropism by growing towards a water source.Rate this question:
.jpg "Diagram below shows the geminated seeds in empty container.
Dalam rajah berikut menunjukkan biji benih bercambah dalam bekas kosong.
What type of tropism is shown by the radicles in figure above based on prediction?
Apakah jenis tropisma yang ditunjukkan oleh radikel dalam rajah di atas berdasarkan ramalan?")
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