Biology problems
- 1. Is a mushroom an autotroph?
Options- A. TRUE
- B. FALSE Also asked in: Bank Exams, Analyst, Bank Clerk, Bank PO, AIEEE
Correct Answer: FALSE
Explanation:
Mushrooms are heterotrophs. They are not plants or autotrophs.
Every living thing that exists need energy in order to live. This energy ultimately comes from the sun, and only plants, or autotrophs, can directly use this energy to make food. Those organisms that cannot harness the sun's energy are known as heterotrophs.
Mushrooms belong to kingdom Fungi and are heterotrophs because they decompose and consume nutrients from the soil. They are not green so they cannot photosynthesize
For this reason, mushrooms and all other fungi are heterotrophs.
- 2. Nitrogenous bases in DNA and RNA?
Options- A. Adenine
- B. Cytosine
- C. Guanine
- D. All the above Also asked in: AIEEE, Bank Exams, Analyst, Bank PO
Correct Answer: All the above
Explanation:
Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base.
The nitrogenous bases in DNA are
Adenine (A),
Guanine (G),
Thymine (T), and
Cytosine (C).
Whereas the nitrogenous bases in RNA are the same, with one exception:
Adenine (A),
Guanine (G),
Uracil (U), and
Cytosine (C).
- 3. Excretion rates of drugs vary greatly depending upon
Options- A. type of drug
- B. medical condition of the person who took the drug
- C. Both A & B
- D. time at which drug was taken Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Both A & B
- 4. The substrate of photorespiration is
Options- A. Glucose
- B. Pyruvic acid
- C. Glycolate
- D. Sucrose Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Glycolate
- 5. The fundamental excitable cell in the nervous system is the
Options- A. Nephron
- B. Axon
- C. Neuron
- D. Dendrite Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Neuron
- 6. Which nutrient has forms most of our body weight?
Options- A. Water
- B. Fats
- C. Carbohydrates
- D. Proteins Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Water
Explanation:
Water is the important nutrient all organisms need. Humans has almost 60% of their body weight is water. Some organisms have 90% of their body weight is of water.
- 7. Pollen is produced by the process of
Options- A. Mitosis
- B. Pollination
- C. Meiosis
- D. Fertilization Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Mitosis
Explanation:
Pollen is a male plant gamete. When microspores produced after meiosis process on microsporangia of male gametophyte undergo mitosis and forms pollen grains.
- 8. Select the correct statement about lymphocytes.
Options- A. Lymph transport is faster than that occurring in veins
- B. Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles
- C. Lymph transport is only necessary when illness causes tissue swelling
- D. Under normal conditions, lymph vessels are very high-pressure conduits Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk
Correct Answer: Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles
Explanation:
Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles is the correct statement regarding lymph transport.
- 9. Excess of fat in the body is stored in
Options- A. Adipose tissue
- B. Acrosome
- C. Erythrocytes
- D. Bone marrow Discuss
Correct Answer: Adipose tissue
- 10. Hepatitis virus destroys the cells and may cause the disease
Options- A. Jaundice
- B. Malaria
- C. Typhoid
- D. Elephantiasis Discuss
Correct Answer: Jaundice
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