Biology problems
- 1. Which is a function of a protein macromolecule?
Options- A. Cushions the internal organs of an animal
- B. Provides the building instructions for living things
- C. Makes up the connective tissue in tendons
- D. Makes the leaves of plants waterproof Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk
Correct Answer: Makes up the connective tissue in tendons
Explanation:
The function of a protein macromolecule is
- Moving things in and out of cells.
- Transporting other molecules in the body.
- Making up the connective tissue in tendons.
- 2. Stress is a factor that contributes to heart disease risk.
Options- A. TRUE
- B. FALSE Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: TRUE
Explanation:
True, Stress is a factor that contributes to heart disease risk.
More factors that contributes to heart disease risk are blood pressure, cholesterol, smoking, physical inactivity and overeating.
- 3. Which shows a correctly paired DNA molecule?
Options- A. AT
- B. TC
- C. AC
- D. TG Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: AT
Explanation:
The nucleotides that are present in DNA molecule are 4. They are Thymine (T), Guanine (G), Adenine (A) and Cytosine (C).
Here in this Adenine pairs with Thymine (A - T) and Cytosine pairs with Guanine (C - G).
- 4. The hormone associated with aggression seems to be
Options- A. Testosterone
- B. Adrenaline
- C. Estrogen
- D. Peptone Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Testosterone
Explanation:
Testosterone is the hormone which is associated with aggression.
- 5. The size of the pupil is controlled by the
Options- A. Retina
- B. Iris
- C. Cornea
- D. Lens Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Iris
Explanation:
The size of the pupil is controlled by the Iris when light enters the eye.
- 6. Membrane bound organelles are not found in the cells of
Options- A. Eukaryotes
- B. Prokaryotes
- C. Both A & B
- D. Nokaryotes Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Prokaryotes
Explanation:
Membrane bound organelles are not found in the cells of Prokaryotes whereas Eukaryotes have nucleus and membrane bound organelles.
For example : Bacteria is prokaryotic organism with lack of nucleus and membrane bound organelles whereas fungi is a eukaryotic with nucleus and membrane bound organelles.
- 7. Nucleic acid hybridization is based on the fact that
Options- A. a chromosome is composed of complementary strands
- B. all cells have DNA
- C. the strands of DNA can be separated
- D. pairing between complementary bases occurs Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: pairing between complementary bases occurs
- 8. A genus can best be defined as
Options- A. a taxon composed of one or more species and a classification level lying below family
- B. a taxon composed of families
- C. the most specific taxon
- D. a taxon comprised of classes Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: a taxon composed of one or more species and a classification level lying below family
Explanation:
A genus can best be defined as a taxon composed of one or more species and a classification level lying below family.
- 9. Which organelle performs cellular respiration?
Options- A. mitochondria
- B. cytolasm
- C. chloroplasts
- D. All of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: mitochondria
- 10. A Phospholipid is a Also asked in: Analyst, Bank Clerk, Bank PO
Correct Answer: A Phospholipid is a lipid molecule which has hydrophilic head and a hydrophobic tailand and is a main component in making of all cell membranes in which they two form a parallel layers called Phospholipid bilayer
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