SAMPLE BIOLOGY QUESTION FROM PAKPREP.COM

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Topic:

Ecosystem & Environment

Question:

The grasslands in tropical climates that have woody trees are called?

Options:

  • Prairies
  • Savanna
  • Pampas
  • Alpine

Correct Answer:

Savanna

Explanation:

A savanna is a grassland ecosystem characterized by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses.

Topic:

Digestion

Question:

Which of these is a function of saliva?

Options:

  • Moistening and Lubrication
  • Antisepsis and stabilization of pH
  • Carbohydrate digestion
  • All of above

Correct Answer:

All of above

Explanation:

Main functions of saliva are:

Mucus causing moistening and lubrication,

Sodium bicarbonate causing antisepsis and pH stabilization

Amylase causing carbohydrate digestion

TOPIC:

Cell Biology

QUESTION:

Which of the following is the function of lysosomes?

OPTIONS:

  • Phagocytosis
  • Autophagy
  • Enzyme secretion for extracellular digestion
  • All of the above

CORRECT OPTION:

All of the above

EXPLANATION:

Lysosomes performs all these functions.

Phagocytosis is eating process of a cell.

Autophagy is self-eating of worn out parts of the cell e.g mitochondria.

SAMPLE PHYSICS QUESTION

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SAMPLE BIOLOGY QUESTION 


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