Discussion
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- Question
The enzyme that is necessary to bring about clotting of blood is
Options- A. peptidase
- B. amylase
- C. lipase
- D. thrombokinase
- Correct Answer
- thrombokinase
ExplanationThe clotting of blood is a chain reaction initiated by the enzyme Thrombokinase produced by the platelets. This causes Prothrombin and calcium salts in plasma to join and produce thrombin. Thrombin combines with Fibrinogen to produce Fibrin threads which entangles the corpuscles to create a clot.
- 1. The leaves used as wrappers for bides are obtained from which one of the following ?
Options- A. Shikakai
- B. Rudraksha
- C. Tendu
- D. Lemon grass Discuss
- 2. Which of the following is the largest phyllum in the animal kingdom in respect of number of species
Options- A. Annalida
- B. Platyhelminthes
- C. Chordata
- D. Arthropoda Discuss
- 3. Monocarpic plants are those that produce fruits ...............during the life of the plant
Options- A. once
- B. thrice
- C. many times
- D. twice Discuss
- 4. The Vitamin required for the synthesis of nucleic acid is
Options- A. Tocoferorl
- B. Folic acid
- C. Cyanocobalamine
- D. Riboflavin Discuss
- 5. Which part of Nervous system controls involuntary actions
Options- A. Medulla oblongata
- B. Cerebellum
- C. Hypothalamus
- D. Spinal cord Discuss
- 6. Cutaneous respiration occurs in
Options- A. Cockroach
- B. Salamander
- C. Crab
- D. Parrot Discuss
- 7. There are approximately how many muscles in Human body ?
Options- A. 206
- B. 310
- C. 554
- D. 700 Discuss
- 8. In plants, exchange of gases takes place through
Options- A. Stomata
- B. Palisade tissue
- C. Spongy tissue
- D. mid rib Discuss
- 9. Damage to hearing is caused by sounds which exceed
Options- A. 70 decibels
- B. 80 decibels
- C. 100 decibels
- D. 120 decibels Discuss
- 10. Blood is
Options- A. alkaline
- B. neutral
- C. like a buffer
- D. acidic Discuss
Biology problems
Search Results
Correct Answer: Tendu
Correct Answer: Arthropoda
Correct Answer: once
Explanation:
Plants are of different types. Some grow well and then produce fruits before they die. In other words they fruit only once in their life. Such plants are said to be monocarpic. Other plants produce fruits every season. These are called polycarpic plants.
Correct Answer: Folic acid
Correct Answer: Medulla oblongata
Correct Answer: Salamander
Correct Answer: 700
Explanation:
Approximatey there are 700 muscles in Human body.
Correct Answer: Stomata
Correct Answer: 120 decibels
Explanation:
High frequency sound attacks the tympanic memberance and makes it defective. 120 decibels is too high a pitch to be heard and therefore it impairs the hearing ability.
Correct Answer: alkaline
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