Biology Practice Question and Answer

Q:

Which of the following is a root ? 

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  • 1
    Potato
    Correct
    Wrong
  • 2
    Onion
    Correct
    Wrong
  • 3
    Carrot
    Correct
    Wrong
  • 4
    ginger
    Correct
    Wrong
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Answer : 3. "Carrot "
Explanation :

Yams, beets, parsnips, turnips, rutabagas, carrots, yuca, kohlrabi, onions, garlic, celery root (or celeriac), horseradish, daikon, turmeric, jicama, Jerusalem artichokes, radishes, and ginger are all considered roots. Because root vegetables grow underground, they absorb a great amount of nutrients from the soil.

Q:

Which of the following statements about bryophytes is not true? 

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  • 1
    They are called amphibians of the plant kingdom.
    Correct
    Wrong
  • 2
    The presence of a special tissue is found in these for the flow of
    Correct
    Wrong
  • 3
    water and other substances from one part of the plant body to another. Their body is generally differentiated by taking the form of stem and leaf-like structures.
    Correct
    Wrong
  • 4
    Moss (Funaria) and Marchantia are examples of bryophytes.
    Correct
    Wrong
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Answer : 3. "water and other substances from one part of the plant body to another. Their body is generally differentiated by taking the form of stem and leaf-like structures. "
Explanation :

All the given statements about bryophytes are true.

1.  They are called amphibians of the plant kingdom.

2. The presence of a special tissue is found in these for the flow of

3. Moss (Funaria) and Marchantia are examples of bryophytes.

Q:

Which of the following enzymes is found in saliva of human body which breaks down starch into simple sugar? 

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  • 1
    Amylase
    Correct
    Wrong
  • 2
    Trypsin
    Correct
    Wrong
  • 3
    Pepsin
    Correct
    Wrong
  • 4
    Renin
    Correct
    Wrong
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Answer : 1. "Amylase "

Q:

The_______is at its largest in children, but with the onset of puberty, it eventually shrinks and gets replaced by fat.

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  • 1
    Parathyroid gland
    Correct
    Wrong
  • 2
    Thymus
    Correct
    Wrong
  • 3
    Hypothalamus
    Correct
    Wrong
  • 4
    Pituitary gland
    Correct
    Wrong
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Answer : 2. "Thymus"
Explanation :

1. It is at its greatest in children.

2. With puberty, it eventually shrinks and is replaced by fat.

3. It produces and secretes thymosin, an essential hormone for T cell development and production.

4. Thymus gland is a small organ located under the breast bone in the upper chest.

5. It produces white blood cells, called lymphocytes, which protect the body from infection.

Q:

Nyctalopia, more commonly known as Night Blindness, is caused by the deficiency of which nutrient?

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  • 1
    Vitamin C
    Correct
    Wrong
  • 2
    Magnesium
    Correct
    Wrong
  • 3
    Potassium
    Correct
    Wrong
  • 4
    Vitamin A
    Correct
    Wrong
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Answer : 4. "Vitamin A"
Explanation :

1. Nyctalopia (night blindness) is caused by deficiency of Vitamin A.

2. Foods rich in Vitamin A are carrots, spinach, sweet potatoes, lettuce, etc.

3. Vitamin A deficiency can cause damage to rod cells, which reduces the ability to see in low light.

Q:

What is the full form of OCD?

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  • 1
    Obesity-Compulsive Disorder
    Correct
    Wrong
  • 2
    Obsession-Controlling Device
    Correct
    Wrong
  • 3
    Obesity-Controlling Device
    Correct
    Wrong
  • 4
    Obsessive-Compulsive Disorder
    Correct
    Wrong
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Answer : 4. "Obsessive-Compulsive Disorder"

Q:

Which of these animals have external and internal skeleton?

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  • 1
    Cockroach
    Correct
    Wrong
  • 2
    Earthworm
    Correct
    Wrong
  • 3
    Frogs
    Correct
    Wrong
  • 4
    Snake
    Correct
    Wrong
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Answer : 4. "Snake"

Q:

In biological terms, _______ is a relationship between two organisms in which one organism benefits and the other is unaffected.

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  • 1
    Parasitism
    Correct
    Wrong
  • 2
    Mutualism
    Correct
    Wrong
  • 3
    Amensalism
    Correct
    Wrong
  • 4
    Commensalism
    Correct
    Wrong
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Answer : 4. "Commensalism"

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