Daily Science Test 5

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The correct answer is "পেরিকন্ড্রিয়াম" which means "pericardium" in English. Pericardium is the protective membrane that surrounds the heart. It helps to keep the heart in place and prevents it from over-expanding.

All the given options, namely শুক্রাশয় (Venus), অগ্নাশয় (Stomach), ডিম্বাশয় (Gallbladder), and সবগুলো (All), function as both external and internal organs. Therefore, all of them can be considered as examples of বহিঃক্ষরা ও অন্তঃক্ষরা গ্রন্থি (organs that have both external and internal functions).

The pineal gland is the smallest gland in the human body. It is located in the brain and is responsible for producing melatonin, a hormone that regulates sleep-wake cycles. The other options mentioned - yakrit (liver), pituitary gland, and agnashay (pancreas) - are all larger glands in the human body.

Renin is an enzyme that is released from the kidneys. It plays a crucial role in regulating blood pressure and fluid balance in the body. Enzymes are biological molecules that act as catalysts, speeding up chemical reactions in the body. Renin specifically helps to convert angiotensinogen into angiotensin I, which is further converted into angiotensin II, a potent vasoconstrictor. Therefore, the correct answer is "এনজাইম" (enzyme).

প্যারাইটাল পাকস্থলী প্রাচীরের একটি কোষ যা HCl নিঃসরণ করে।

The correct answer is "ত্বক" (skin). The question asks for the largest organ in the human body, and the skin is indeed the largest organ. It covers the entire body and protects it from external factors, regulates body temperature, and helps in the sensation of touch.

The correct answer is "অনুচক্রিকা" (Anuchakrika) because red blood cells (lohit roktokanika), hepatocytes (hepatocyte), and nucleus (dimbāṇu) are all found in cells, but anuchakrika (nucleus) is not present in every cell.

The question is asking which body part is responsible for maintaining the body's balance. The correct answer is "ইউট্রিকুলাস" which refers to the utricle, a part of the inner ear that helps in maintaining balance and detecting changes in head position.

Our body cells take up oxygen and glucose from the blood for energy production through cellular respiration. Oxygen is necessary for the process of oxidative phosphorylation, which occurs in the mitochondria and is responsible for generating ATP, the main source of energy for cells. Glucose is the primary source of fuel for cellular respiration and is broken down through a series of reactions to produce ATP. Therefore, the correct answer is "oxygen and glucose" as they are both essential components for energy production in our body cells.

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লিম্ফোসাইট হল একটি রক্তের আণুবীক্ষণিক সৈনিক। লিম্ফোসাইট হল সংক্রমণ বা অন্যান্য ব্যাধির বিরুদ্ধে রক্তে থাকা প্রতিরোধক কণিকা। এটি রক্তে বিভিন্ন প্রকারের সামগ্রী এবং ব্যাকটেরিয়া, ভাইরাস ইত্যাদি থেকে রক্ষা করে।

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The question asks which cell does not have the power of division. The correct answer is "স্নায়ু কোষ" (Nerve cell) as nerve cells are specialized cells that do not undergo cell division. Unlike other cells in the body, nerve cells are unable to divide and reproduce. They are post-mitotic cells, meaning they are formed during embryonic development and do not regenerate or replace themselves after they are damaged or die.

হেপারিন শ্বেত রক্ত কণিকা তৈরি করে এবং বেসোফিল হলো এমন একটি ধরণের শ্বেত রক্ত কণিকা যা হেপারিন তৈরি করে। তাই বেসোফিলকে হেপারিন তৈরি করার জন্য উত্তেজনাপূর্ণ করতে পারে।

The correct answer is "মল্টেজ". Multez is an enzyme that is released from the acinar cells of the pancreas. It helps in the digestion of proteins by breaking them down into smaller peptides. Therefore, it is the enzyme that is released from the pancreatic gland, not the other options mentioned.

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The given question is asking for the organ that functions as a unit in the respiratory system. The correct answer is "ফুসফুস" (lungs) as it is the main organ responsible for the exchange of oxygen and carbon dioxide in the body. Lungs consist of bronchi, bronchioles, and alveoli, which work together to facilitate the process of respiration.

The correct answer is "রেনাল ক্যাপসুল" (renal capsule). The term "রেনাল ক্যাপসুল" refers to the covering or capsule that surrounds the kidneys. It provides protection and support to the kidneys, helping to maintain their shape and position within the body.

পালমোনারি ধমনী কার্বন ডাই অক্সাইড যুক্ত রক্ত পরিবহন করে। (The pulmonary artery carries blood containing carbon dioxide.)

ধমনীর উপর প্রযুক্ত চাপ translates to "pressure on the arteries". This is the correct answer because blood pressure is the force exerted by the blood against the walls of the arteries. The other options mentioned in the question are not related to blood pressure.

The correct answer is "সমগ্র কার্বন-ডাই-অক্সাইড পরিবহন করা" which means "Transporting carbon dioxide throughout the body". This is not a function of red blood cells. Red blood cells are responsible for carrying oxygen to the body's tissues, maintaining the density of the blood, and determining the blood group. Transporting carbon dioxide is primarily done by plasma and to a lesser extent by red blood cells, but it is not their primary function.

The question is asking for the strongest bone in the body. The correct answer is "অস্থি" which translates to "bone" in English. This answer is correct because bones provide structural support and protection to the body, and they are made up of a hard and dense material that gives them strength.

The correct answer is "পিউবিস". The other options mentioned in the question are "পিটুইটারি" (pituitary), "অ্যাড্রেনাল" (adrenal), and "থাইরয়েড" (thyroid), all of which are endocrine glands. However, "পিউবিস" (pubis) is not an endocrine gland. It is a bone located in the pelvic region.

অ্যালবুমিন একটি প্রোটিন যা রক্তে থাকে এবং এটি রক্তের জমাট বাঁধার ফ্যাক্টর নয়। এটি রক্তের অংশগ্রহণ করে এবং প্রধানতঃ অ্যালবুমিন রক্তের অংশগ্রহণের জন্য ব্যবহৃত হয়। অ্যালবুমিন রক্তের ওজন বাড়ানোর জন্য দরকারী একটি প্রোটিন হলেও এটি রক্ত জমাট বাঁধার ফ্যাক্টর নয়।

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Enamel is the hardest substance in the human body and covers the outer layer of the teeth. It is a protective layer that helps to prevent tooth decay and damage.

The hypothalamus controls the pituitary gland's functions. The hypothalamus is a small region in the brain that plays a crucial role in regulating various bodily functions, including hormone production and release. It communicates with the pituitary gland through a network of blood vessels and nerve cells, allowing it to control the release of hormones that regulate growth, metabolism, reproduction, and stress response. Therefore, the correct answer is "হাইপোথ্যালামাস" (Hypothalamus).

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লোহিত রক্ত কণিকা উৎপন্ন হয় এককেল যকৃত, লোহিত অস্থি-মজ্জা এবং ভ্রূণথলি থেকে।

ইউরোক্রোম মূত্রের বর্ণ করে। অ্যামোনিয়া মূত্রের বাদামি করে এবং ক্রিয়েটিনিন ও ইউরিয়া মূত্রের মাধ্যমে বিষাক্ত পদার্থগুলি বিদ্যমান থাকে।

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ক্যালসিটোনিন হরমোন রক্তে ক্যালসিয়ামের পরিমাণ কমিয়ে দেয়।

Both blood group A and AB can donate blood to individuals with blood group A. Blood group A contains antigens A on the red blood cells and antibodies against antigen B in the plasma. Blood group AB contains both antigens A and B on the red blood cells, but no antibodies against either antigen in the plasma. Therefore, individuals with blood group A can donate blood to individuals with blood group A, as well as individuals with blood group AB, since they have antigens A and no antibodies against A.

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The correct answer is "সেবাসিয়াস গ্রন্থি" because it is the only option that represents a specific gland (the sebaceous gland) in the body. The other options, "যকৃত" (liver), "অ্যাড্রেনাল গ্রন্থি" (adrenal gland), and "পিনিয়াল গ্রন্থি" (pineal gland), represent different glands in the body, but not specifically the sebaceous gland.

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Monocytes and lymphocytes are types of white blood cells. Monocytes are the largest type of white blood cells and are responsible for phagocytosis, which is the process of engulfing and destroying pathogens. Lymphocytes, on the other hand, are responsible for the immune response and produce antibodies to fight against infections. Both monocytes and lymphocytes are involved in the body's defense against foreign invaders, making them the correct answer.

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The correct answer is "শর্করা পরিপাক করা" which means "fermentation of sugar". This process is not related to the function of gastric juice in the digestive system. Gastric juice is responsible for breaking down food and making it acidic, while fermentation of sugar is a chemical process that produces alcohol or organic acids.

The correct answer is "টক-নোনতা-মিষ্টি-তিতা" because it includes all types of tastes - sour, salty, sweet, and bitter.

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