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- Question
The Vitamin required for the synthesis of nucleic acid is
Options- A. Tocoferorl
- B. Folic acid
- C. Cyanocobalamine
- D. Riboflavin
- Correct Answer
- Folic acid
- 1. Which part of Nervous system controls involuntary actions
Options- A. Medulla oblongata
- B. Cerebellum
- C. Hypothalamus
- D. Spinal cord Discuss
- 2. Nuclear membrane is absent in
Options- A. Volvox
- B. Penicillium
- C. Agaricus
- D. Nostoc Discuss
- 3. Which of the following is a mixed gland
Options- A. Pituitary
- B. Adrenal
- C. Pancreas
- D. Ovary Discuss
- 4. Only male frog produce croacking sound because ____
Options- A. Female frog have no larynx
- B. Female frog have larynx but no vocal cord
- C. Male frog have three pair of vocal cord
- D. Male frog can magnify their voice with the help of sound box Discuss
- 5. Hardest Part of the Human Body?
Options- A. Tooth Enamel
- B. Femur
- C. Temporal bone of skull
- D. Knee bone Discuss
- 6. Monocarpic plants are those that produce fruits ...............during the life of the plant
Options- A. once
- B. thrice
- C. many times
- D. twice Discuss
- 7. 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
- 8. 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
- 9. The enzyme that is necessary to bring about clotting of blood is
Options- A. peptidase
- B. amylase
- C. lipase
- D. thrombokinase Discuss
- 10. Cutaneous respiration occurs in
Options- A. Cockroach
- B. Salamander
- C. Crab
- D. Parrot Discuss
Biology problems
Search Results
Correct Answer: Medulla oblongata
Correct Answer: Nostoc
Correct Answer: Pancreas
Correct Answer: Female frog have no larynx
Correct Answer: Tooth Enamel
Explanation:
Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.
Femur and Temporal bone of the skull are the hardest bones of the human body.
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: Arthropoda
Correct Answer: Tendu
Correct Answer: thrombokinase
Explanation:
The 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.
Correct Answer: Salamander
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