Biology Practice Question and Answer

Q:

Match the columns.
 Nutrients                   Examples
 a. Protein                  I. Calcium, Phosphorous
 b. Carbohydrates    II. Cholesterol
 c. Fat                        III. Glucose
 d. Minerals              IV. Myosin

409 0

  • 1
    a-i, b-iii, c-ii, d-iv
    Correct
    Wrong
  • 2
    a-iii, b-iv, c-ii, d-i
    Correct
    Wrong
  • 3
    a-i, b-ii, c-iii, d-iv
    Correct
    Wrong
  • 4
    a-iv, b-iii, c-ii, d-i
    Correct
    Wrong
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Answer : 4. "a-iv, b-iii, c-ii, d-i"
Explanation :

Explanation:
 Nutrient                 Example

Protein                    Myosin

Carbohydrate         Sugar

Fat                            Cholesterol

Minerals Calcium, Phosphorus

1. Protein is one of the essential nutrients for the body. It is essential for building and repairing muscles, skin, hair, nails and other tissues. Myosin is a protein responsible for muscle contraction.

2. Carbohydrates are the main source of energy for the body. They are found in the form of starch, glucose and fiber. Sugar is a type of carbohydrate that is easily digested by the body and provides energy.

3. Fats are essential nutrients for the body. They help keep the body warm, produce hormones, and build cell walls. Cholesterol is a type of fat made by the body. It is essential for the body, but in excess can cause health problems.

4. Minerals are essential nutrients for the body. They form structural components of the body, help produce hormones, and regulate body functions. Calcium and phosphorus are two important minerals that are necessary for the formation of bones and teeth.

Q:

Who discovered the first vaccine for smallpox?

407 0

  • 1
    Louis Pasteur
    Correct
    Wrong
  • 2
    Edward Jenner
    Correct
    Wrong
  • 3
    Alexander Fleming
    Correct
    Wrong
  • 4
    John Hunter
    Correct
    Wrong
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Answer : 2. "Edward Jenner"

Q:

The condensation of chromosomes is observed in ______

406 0

  • 1
    Prophase 1
    Correct
    Wrong
  • 2
    Anaphase 1
    Correct
    Wrong
  • 3
    Metaphase 1
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Prophase 1 "

Q:

In the context of the human nervous system, which part of the neuron receives information

406 0

  • 1
    Dendrite
    Correct
    Wrong
  • 2
    Mitochondria
    Correct
    Wrong
  • 3
    Axon
    Correct
    Wrong
  • 4
    Nerve ending
    Correct
    Wrong
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Answer : 1. "Dendrite"
Explanation :

1. Dendrites are projections of a neuron (nerve cell) that receive signals (information) from other neurons.

2. Transfer of information from one neuron to another is achieved through chemical signals and electrical impulses, i.e. electrochemical signals.

Q:

Nails consist of modified ________ cells

403 0

  • 1
    Epithelial
    Correct
    Wrong
  • 2
    Epidermal
    Correct
    Wrong
  • 3
    Hypodermal
    Correct
    Wrong
  • 4
    Dermal
    Correct
    Wrong
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Answer : 2. "Epidermal"

Q:

Tendon is made up of

402 0

  • 1
    Aerolar tissue
    Correct
    Wrong
  • 2
    Adipose tissue
    Correct
    Wrong
  • 3
    Modified yellow elastic fibrous tissue
    Correct
    Wrong
  • 4
    Modified white fibrous tissue
    Correct
    Wrong
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Answer : 3. "Modified yellow elastic fibrous tissue"

Q:

Which of the following can degrade detritus into simpler inorganic substances?

399 0

  • 1
    Algae
    Correct
    Wrong
  • 2
    Phytoplankton
    Correct
    Wrong
  • 3
    Fungal enzymes
    Correct
    Wrong
  • 4
    Lichens
    Correct
    Wrong
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Answer : 3. "Fungal enzymes"
Explanation :

1. Fungal enzymes decompose simple inorganic substances.

2. Fungi are a type of microorganisms that decompose organic matter.

3. Enzymes break down organic matter into smaller molecules, which can then be used by the body of the fungus.

Q:

By which of the following structures tongue is attached to the oral cavity?

398 0

  • 1
    Fingulum
    Correct
    Wrong
  • 2
    Lingulum
    Correct
    Wrong
  • 3
    Frenulum
    Correct
    Wrong
  • 4
    Papilae
    Correct
    Wrong
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Answer : 3. "Frenulum "

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