Biology problems
- 1. The energy stored in photosynthesis is obtained from
Options- A. Sunlight
- B. Oxidation of glucose
- C. Breakdown of proteins
- D. breakdown of glucose Discuss
Correct Answer: Sunlight
- 2. For the oxidation, carbohydrates should be in the form of
Options- A. Starch
- B. Cellulose
- C. Glucose
- D. Fats Discuss
Correct Answer: Glucose
- 3. Antisnake venom is prepared by
Options- A. Pasteur institute
- B. Hoffkine's institute
- C. Birla's Institute
- D. Indian science Institute Discuss
Correct Answer: Hoffkine's institute
Explanation:
Antisnake venom: In the Hoffkine Institute at Bombay snake venom in mild dose is injected into horses and the horses are induced to produce anti-venom bodies. These are extracted and used in cases of snake bites.
- 4. Organisms that depend only on raw plant products are said to be
Options- A. herbivorous
- B. vegetarian
- C. carnivorous
- D. omnivorous Discuss
Correct Answer: herbivorous
Explanation:
Herbivorous organisms are those that take for their food, plant parts like leaves raw in contrast to vegetarian, which means that plant products are taken raw or after being cooked.
- 5. Man has _____ pairs of salivary glands
Options- A. 3
- B. 4
- C. 6
- D. 8 Discuss
Correct Answer: 3
Explanation:
Salivary glands of man are 3 pairs = 6. They are one pair of parotid glands, one pair of sub-maxillary or sub-mandibular glands and one pair of sub-lingual glands.
- 6. Damage to hearing is caused by sounds which exceed
Options- A. 70 decibles
- B. 80 decibles
- C. 100 decibles
- D. 120 decibles Discuss
Correct Answer: 120 decibles
Explanation:
High frequency sound attacks the tympanic memberane and makes it defective. 120 decibles is too high a pitch to be heard and therefore it impairs the hearing ability.
- 7. Which of the following organelle is known as the 'Power House' of the cell?
Options- A. Golgi Bodies
- B. Ribosomes
- C. Mitochondria
- D. None of these Discuss
Correct Answer: Mitochondria
Explanation:
Mitochondria are known as 'Power House' of the cell because they produce energy in the form of ATP.
- 8. Who is known as father of Biology
Options- A. Aristotle
- B. Darwin
- C. Lamark
- D. Linneus Discuss
Correct Answer: Aristotle
- 9. Transmission of stimuli from one part of body to other part takes place through __________
Options- A. Muscular tissue
- B. Epithelium tissue
- C. Connective tissue
- D. Nervous tissue Discuss
Correct Answer: Nervous tissue
- 10. Synapsis occurs during
Options- A. Mitosis
- B. Meiosis
- C. Both A & B
- D. None Also asked in: AIEEE, Bank Exams, Analyst
Correct Answer: Meiosis
Explanation:
Synapsis is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them.
Synapsis takes place during prophase I of meiosis.
It is also called as Syndesis.
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