Biology Practice Question and Answer

Q:

Which of the following is a root ? 

322 0

  • 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:

The upper part of the respiratory tract is provided with small hair-like structures called ______.

193 0

  • 1
    bronchi
    Correct
    Wrong
  • 2
    cilia
    Correct
    Wrong
  • 3
    villi
    Correct
    Wrong
  • 4
    alveoli
    Correct
    Wrong
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Answer : 2. "cilia"
Explanation :

Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.


Q:

The size of the pupil of the eye is controlled by the ______.

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  • 1
    blind spot
    Correct
    Wrong
  • 2
    retina
    Correct
    Wrong
  • 3
    cornea
    Correct
    Wrong
  • 4
    iris
    Correct
    Wrong
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Answer : 4. "iris"
Explanation :

1. The iris controls the amount of light entering the eye.

2. Iris is the colored part of the eye, which provides pigment to the eyes.

3. It is attached to the ciliary muscle, which contracts and expands to accommodate the required amount of light.

Q:

Deficiency of which of the following vitamins causes excessive bleeding from wounds?

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  • 1
    Vitamin D
    Correct
    Wrong
  • 2
    Vitamin E
    Correct
    Wrong
  • 3
    Vitamin A
    Correct
    Wrong
  • 4
    Vitamin K
    Correct
    Wrong
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Answer : 4. "Vitamin K"
Explanation :

1. Vitamin K deficiency causes excessive bleeding from wounds.

2. If there is deficiency of Vitamin K in your body then you can easily get injury marks on your body or skin.

Q:

Which of the following options is correct regarding sexually transmitted disease (STD)?

Statement A: Sexually transmitted diseases (STD) are infections transmitted from an infected person to an uninfected person through sexual contact.
Statement B: HIV, HPV and Hepatitis B virus is responsible for STD.

195 0

  • 1
    Both Statements A and B incorrect
    Correct
    Wrong
  • 2
    Only Statement B is correct
    Correct
    Wrong
  • 3
    Both Statements A and B correct
    Correct
    Wrong
  • 4
    Only Statement A is correct
    Correct
    Wrong
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Answer : 3. "Both Statements A and B correct"
Explanation :

This is a correct statement regarding sexually transmitted diseases (STD).

Statement A: Sexually transmitted diseases (STD) are infections transmitted from an infected person to an uninfected person through sexual contact.

Statement B: HIV, HPV and Hepatitis B virus is responsible for STD.

Q:

Sponges belong to phylum ______ of the animal kingdom.

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  • 1
    Echinodermata
    Correct
    Wrong
  • 2
    Porifera
    Correct
    Wrong
  • 3
    Aschelminthes
    Correct
    Wrong
  • 4
    Mollusca
    Correct
    Wrong
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Answer : 2. "Porifera"
Explanation :

1. Sponge belongs to Porifera phylum of the animal kingdom.

2. These are primitive multicellular animals. The study of sponges is known as para zoology.

3. Sponges are mostly irregular in shape and have radial symmetry.

4. The body of a sponge has two layers-

- Epidermis: This is the outer layer that helps move water in and out.

- Mesohyl: This is the middle layer which contains the cells of the sponge.

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:

Starch and sugar in our food are forms of _____.

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  • 1
    Proteins
    Correct
    Wrong
  • 2
    fats
    Correct
    Wrong
  • 3
    vitamins
    Correct
    Wrong
  • 4
    carbohydrates
    Correct
    Wrong
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Answer : 4. "carbohydrates"
Explanation :

1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.

2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.

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