Biology Questions Practice Question and Answer

Q:

Anemia disease is caused due to deficiency of which vitamin?

365 0

  • 1
    Vitamin B12
    Correct
    Wrong
  • 2
    Vitamin B1
    Correct
    Wrong
  • 3
    Vitamin B3
    Correct
    Wrong
  • 4
    Vitamin C
    Correct
    Wrong
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Answer : 1. "Vitamin B12"
Explanation :

Symptoms of vitamin B12 deficiency or folate deficiency anemia develop slowly and are similar to those of other types of anemia, such as fatigue, weakness, and pale skin. Vitamin B12 deficiency can also cause nerve damage, the main symptoms of which include tingling, loss of touch, and muscle weakness. Confusion can arise when Vitamin B12 becomes too low. Vitamin B12 deficiency anemia in the elderly can be mistaken for dementia. This happens because of similar symptoms.

Q:

Deficiency of which of these vitamins causes anaemia in humans?

257 0

  • 1
    Vitamin C
    Correct
    Wrong
  • 2
    Vitamin B
    Correct
    Wrong
  • 3
    Vitamin A
    Correct
    Wrong
  • 4
    Vitamin B12
    Correct
    Wrong
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Answer : 4. "Vitamin B12"
Explanation :

1. Anemia in humans is caused by a deficiency of Vitamin B12.

2. Vitamin B12 is a water-soluble vitamin

3. Which is necessary for the formation of red blood cells?

4. The most common cause of anaemia is low iron levels in the body. This type of anaemia is called iron deficiency anaemia.

Q:

Deficiency of which of these vitamin causes anaemia in humans?

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  • 1
    Vitamin D
    Correct
    Wrong
  • 2
    Vitamin B
    Correct
    Wrong
  • 3
    Vitamin A
    Correct
    Wrong
  • 4
    Vitamin B12
    Correct
    Wrong
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Answer : 4. "Vitamin B12"
Explanation :

Symptoms of vitamin B12 deficiency or folate deficiency anemia develop slowly and are similar to those of other types of anemia, such as fatigue, weakness, and pale skin. Vitamin B12 deficiency can also cause nerve damage, the main symptoms of which include tingling, loss of touch, and muscle weakness. Confusion can arise when Vitamin B12 becomes too low. Vitamin B12 deficiency anemia in the elderly can be mistaken for dementia. This happens because of similar symptoms.

Q:

Which of the following mammalian organisms is not a common source of fibre?

126 0

  • 1
    zebra
    Correct
    Wrong
  • 2
    Embers Goat
    Correct
    Wrong
  • 3
    Llama
    Correct
    Wrong
  • 4
    Alpaca
    Correct
    Wrong
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Answer : 1. "zebra"
Explanation :

Mammals are a common source of fibre.

1. Embers Goat

3. Llama

4. Alpaca

Q:

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

109 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:

Which one of the following is the richest source of vitamin C?

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  • 1
    Guava
    Correct
    Wrong
  • 2
    Pineapple
    Correct
    Wrong
  • 3
    Orange
    Correct
    Wrong
  • 4
    Tomato
    Correct
    Wrong
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Answer : 1. "Guava "
Explanation :

(A) Guava

Guava is considered one of the richest sources of vitamin C among fruits. It contains a high concentration of ascorbic acid, which is a form of vitamin C. While other fruits like oranges and pineapples also contain vitamin C, guava surpasses them in terms of vitamin C content per serving. Tomatoes, although a good source of vitamin C, are generally lower in vitamin C compared to guava.

Q:

Who discovered the polio vaccine – 

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  • 1
    Robert koach
    Correct
    Wrong
  • 2
    Edward Genere
    Correct
    Wrong
  • 3
    Alexander Flemming
    Correct
    Wrong
  • 4
    Jones Salk
    Correct
    Wrong
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Answer : 4. "Jones Salk "
Explanation :

(D) Jonas Salk

The polio vaccine was developed by Dr. Jonas Salk. He and his team conducted extensive research in the 1950s, leading to the development of the inactivated polio vaccine (IPV), which became widely used for the prevention of polio. The vaccine was a significant breakthrough in medical science and played a crucial role in the global effort to eradicate polio.

Q:

Hair is composed of protein called – 

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  • 1
    keratin
    Correct
    Wrong
  • 2
    Casein
    Correct
    Wrong
  • 3
    Globulin
    Correct
    Wrong
  • 4
    Mucin
    Correct
    Wrong
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Answer : 1. "keratin "
Explanation :

(A) Keratin

Hair is primarily composed of a protein called keratin. Keratin is a fibrous structural protein that forms the main component of hair, as well as nails and the outer layer of the skin. It provides strength and resilience to these structures. The other options—Casein, Globulin, and Mucin—are proteins found in other parts of the body and have different functions.

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