Biology MCQs with answers Page - 11

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Q. Consider the following statements:
1.Diabetes insipidus causes diuresis, i.e., urine is passed out several times more than in a normal person.
2.A person with diabetes insipidus suffers from very low or no output of vasopressin.
3.Such diabetic patients drink large quantity of water.
4.Vasopressin is secreted by hypothalamus and stored in posterior pituitary. Which of the above statements is/are correct?

  • (A) 2, 4
  • (B) 1, 3, 4
  • (C) 1, 3
  • (D) 1, 2, 3, 4

A

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Q. O2 released in the process of photosynthesis comes from

  • (A) Sugar
  • (B) Pyruvic acid
  • (C) CO2
  • (D) Water

A

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Q. Such fish that are found in rivers in Australia and Africa where water is too foul to support life with the usual gills are
1.dipnoins
2.lung fishes
3.sturgeons
4.guppies

  • (A) 2, 3, 4
  • (B) 1, 2
  • (C) 3, 4
  • (D) 1, 2, 4

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Q. Pulses are amongst the most important group of food plants, second in importance only to the cereals. Why are they considered so important?
1. They are the most important source of proteins not only for the human population but also for animals, both herbivores and carnivores.
2. They save us billions of rupees every year in fertilizer cost by fixing atmospheric nitrogen, being the only group of crop plants that is capable of doing so .
Select the correct answer from the following.

  • (A) 1 only
  • (B) 2 only
  • (C) Both 1 and 2
  • (D) Neither 1 nor 2

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Q. A colour-blind man marries a normal woman whose father was colour-blind. They have 3 children, two daughters and ason. What are the chances of their children being colour-blind?

  • (A) One of the daughters will be colour-blind but another daughter and son will be normal.
  • (B) Only the son will be colour-blind
  • (C) Both the daughters will be colour-blind but the son will be normal.
  • (D) One of the daughters will be colour-blind and the other normal, but the son has only 50% chance of being normal.

A

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Q. In plants, chloroplasts are necessary for

  • (A) Photosynthesis
  • (B) Storage
  • (C) Cell movement
  • (D) Respiration

A

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Q. In which of the following organelles does photosynthesis take place?

  • (A) Miochondria
  • (B) Chloroplast
  • (C) Central Vacuole
  • (D) Ribosome

A

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Q. Where does protein synthesis take place in a cell?

  • (A) Ribosomes
  • (B) Mitochondria
  • (C) Cytoplasm
  • (D) Nucleus

A

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Q. In plants cells,which structure provides a definite shape to the cell and makes it right?

  • (A) Cell membrane
  • (B) Chitin
  • (C) Epidermis
  • (D) Cell wall

A

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Q. Produces a usable form of energy for the cell

  • (A) Lysosomes
  • (B) Vacuoles
  • (C) Mitochondria
  • (D) Ribosomes

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