Discussion
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- Question
Plant tissues are of how many types?
Options- A. 3
- B. 2
- C. 5
- D. 6
- Correct Answer
- 3
- 1. A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 2. Lysosome is formed from which of the following cell organelles?
Options- A. Nucleus
- B. Endoplasmic reticulum
- C. Golgi bodies
- D. Ribosomes Discuss
- 3. Which of the following vitamins are water soluble?
Options- A. Vit. A & Vit. B
- B. Vit. B & Vit. C
- C. Vit. C & Vit. D
- D. Vit. A & Vit. K Discuss
- 4. Which organ has finger like outgrowths which are called as Villi (Singular Villus)?
Options- A. Large Intestine
- B. Bladder
- C. Small Intestine
- D. Stomach Discuss
- 5. At which stage in its life cycle does the silkworm yield the fiber of commercial use
Options- A. Larva
- B. Egg
- C. Pupa
- D. Imago Discuss
- 6. Nephron is related to which of the following system of human body?
Options- A. Circulatory system
- B. Excretory system
- C. Reproductive system
- D. Respiratory system Discuss
- 7. The process of copying genetic information from one strand of DNA into RNA is termed as
Options- A. translation
- B. transcription
- C. replication
- D. mutation Discuss
- 8. AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through
Options- A. eating contaminated food and water
- B. transfusion of contaminated blood and blood products
- C. inhaling polluted air
- D. shaking hand with infected person Discuss
- 9. Kwashiorkor disease in children is caused by
Options- A. sufficient carbohydrates but less fats in diet
- B. sufficient carbohydrates and fats but deficient proteins in diet
- C. sufficient vitamins but deficient fats in diet
- D. sufficient fats but deficient vitamins in diet Discuss
- 10. The mammalian heart is myogenic and it is regulated by nerves. The heartbeat originates from
Options- A. sinoatrial node
- B. QRS wave
- C. T wave
- D. hepatic portal system Discuss
Biology problems
Search Results
Correct Answer: 3
Explanation:
There are 3 double-layered membrane layers, which the protein has to pass to reach its destination.
Correct Answer: Golgi bodies
Explanation:
?Lysosomes are spherical membranous sacs of enzymes.
?The lysosome membrane helps to keep its internal compartment acidic and separates the digestive enzymes from the rest of the cell.
?Lysosomes are formed by budding from the Golgi complex.
Correct Answer: Vit. B & Vit. C
Correct Answer: Small Intestine
Correct Answer: Pupa
Correct Answer: Excretory system
Correct Answer: transcription
Explanation:
The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. In transcription, only a segment of DNA and only one of the strands is copied into RNA. This necessitates defining the boundaries that would demarcate the region and the strand of DNA that would be transcribed.
Correct Answer: transfusion of contaminated blood and blood products
Explanation:
AIDS is caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome. Transmission of HIV-infection generally occurs by (a) sexual contact with infected person, (b) by transfusion of contaminated blood and blood products, (c) by sharing infected needles as in the case of intravenous drug abusers and (d) from infected mother to her child through placenta.
Correct Answer: sufficient carbohydrates and fats but deficient proteins in diet
Explanation:
Kwashiorkar is produced by protein deficiency unaccompanied by calorie deficiency. It results from the replacement of mother?s milk by a high calorie-low protein diet in a child more than one year in age. Like marasmus, kwashiorkor shows wasting of muscles, thinning of limbs, failure of growth and brain development
Correct Answer: T wave
Explanation:
The mammalian heartis called myogenic (myo = muscle, genie = originating from). It means the heart beat or the activities of the heart are auto regulated which originates from a muscle called nodal tissue.In the human heart,heartbeat originates and contraction is initiated by a special modified heart muscle known as sinoatrial node. It is located in the right atrium; while the QRS waves are the depolarisation of the ventricles, which initiates the ventricular contraction.The T-wave represents the repolarisation,that is, the return of the ventricles from excited tonormal state.Hepatic portal system is the unique vascular connection that exists between the digestive tract and liver. This vein carries blood from intestine to the liver.
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