Biology problems
- 1. The universal donor belongs to blood group
Options- A. A
- B. B
- C. AB
- D. O Discuss
Correct Answer: O
Explanation:
The persons with 'O' blood group do not have antigens in the red corpuscles. So that blood will not cause agglutination of corpuscles if mixed with any type of blood. So group 'O' persons are called universal donors.
- 2. Study Of Cells Is Called
Options- A. Cellogysm
- B. Cell biology
- C. Cell Organism
- D. None Also asked in: AIEEE, Analyst
- Life cycle
- Structure and organisation of cell organelles and their physiological properties.
- Metabolic processes
- Interactions with their environment
- Signalling pathways.
Correct Answer: Cell biology
Explanation:
The branch of biology that studies the different structures and functions of the cell is called Cell Biology or Cytology.
A cell is the smallest unit of life that can replicate independently, and cells are often called the "building blocks of life"
Cell Biology deals with :
- 3. Organisms need Nutrients in order to
Options- A. Breaking down food
- B. Utilize chemical compounds
- C. recycling
- D. None Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank PO
- Important nutrients are Hydrogen, Carbon and Oxygen.
- Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium.
Correct Answer: Breaking down food
Explanation:
Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions.
- 4. Cancer is caused by
Options- A. Loss of immunity of cells
- B. Uncontrolled meiosis
- C. Uncontrolled mitosis
- D. Rupturing of cells Also asked in: Bank Exams, Bank Clerk, AIEEE
Correct Answer: Uncontrolled mitosis
- 5. In plant body, the water and minerals are transported by _______
Options- A. Bast
- B. Collenchyma
- C. parenchyma
- D. Xylum Discuss
Correct Answer: Xylum
- 6. Light compensation zone refers to
Options- A. where light is available in plenty
- B. where light is maximum
- C. beyond which light does not penetrate
- D. where all light is used Discuss
Correct Answer: beyond which light does not penetrate
- 8. A colour blind person has difficulty in distinguishing which of the two colours ?
Options- A. Green & Red
- B. White & Red
- C. Blue & Red
- D. Red & Black Also asked in: AIEEE, Bank Exams, CAT, Bank Clerk, Bank PO
Correct Answer: Green & Red
- 9. The weight of the brain in the total weight of the body is about
Options- A. 2%
- B. 3%
- C. 4%
- D. 5% Discuss
Correct Answer: 2%
- 10. In case of a heart attack, a hormone is injected as an emergency measure, Which one is it?
Options- A. Thyroxine
- B. Adrenaline
- C. Heparin
- D. Insulin Discuss
Correct Answer: Adrenaline
Explanation:
Heparin is a hormone secreted by the liver. This is anticoagulant in its property. It prevents cloting of blood inside the heart and blood vessels. Heart attack is the result of a block in the blood vessels supplying blood to the walls of the heart.
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