MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
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Study the following statements:
1. Lungs are enclosed in double membrane called Pleura.
2. Between the two layers in the pleural cavity filled with pleural fluid.
3. In humans, left lung has two lobes, while right lung has three lobes.
4. In rabbit, right lung has two lobes.
Which of the statements given above are correct about lungs?

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Important Questions on Biology

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UPSC CAPF AC Paper - I
IMPORTANT

The main thinking part of the brain is

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UPSC CAPF AC Paper - I
IMPORTANT
Which one among the following hormones stimulates the plant cells to grow in a manner such that the plant appears to be bent towards light?
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UPSC CAPF AC Paper - I
IMPORTANT

Consider the following statements

1. End product of anaerobic respiration is lactic acid.

2. Asthma is caused due to spasm in bronchial muscles.

3. Mammalian lung have numerous alveoli for increasing surface area for gaseous diffusion.

4. At the time of inspiration, the diaphargm is contract.

Which of the statements given above are correct?

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UPSC CAPF AC Paper - I
IMPORTANT
In a healthy person, rate of heart beat in one minute is _____.
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UPSC CAPF AC Paper - I
IMPORTANT
The air that enters our lungs is characterised that:
1. It is warm
2. It is filtered
3. Some oxygen is extracted from it
4. Some carbon dioxide is added to it
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UPSC CAPF AC Paper - I
IMPORTANT

The human eye is like a camera and, hence, it contains a system of lens. The eye lens forms,

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT

Which of the following statements about sexual reproduction in flowering plants are correct?

1. Stamen is present in the centre of a flower.

2. Stamen produces pollen grains.
3. The swollen bottom part of carpel is the ovary.
4. The fusion of germ cells gives rise to zygote.

Select the correct answer using the codes given below

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UPSC CAPF AC Paper - I
IMPORTANT
Which chamber of human heart pumps fully oxygenated blood to aorta and thence to the body?