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10th CBSE
IMPORTANT
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The diagram shows a vertical section through the heart.

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What are the functions of the numbered blood vessels?

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Important Questions on Life Processes

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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 28

The diagram represents a part of the human circulatory system. Where is the blood pressure highest?

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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 29

The diagram shows part of the human gas exchange system.

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What are W, X, Y and Z?

  Bronchus Bronchiole Larynx Trachea
(a) W X Z Y
(b) X Z Y W
(c) Y W X Z
(d) Z Y W X
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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 30

The below diagram shows the respiratory system of human beings.

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Identify the correct function of the part labelled as 'X'.

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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 31
If the loop of Henle is abolished
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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 32
Glomerulus filters out glucose from the blood, but still no glucose is detected in the urine of a healthy adult. Select the option which correctly explains the above fact.
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10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 33
Refer to the diagram of the human digestive system to answer.
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Organs and associated functions are given in options. Which of the following correctly states the function of the labelled organ?
HARD
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 34
In photosynthesis, which substances are used up, which are produced and which are necessary, but remain unchanged after the reaction?
Used up Produced Remain unchanged
(a) Carbon dioxide Water Oxygen
(b) Chlorophyll Carbon Dioxide Water
(c) Oxygen Starch Cellulose
(d) Water Oxygen Chlorophyll
HARD
10th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class X>Chapter 6 - Life Processes>Exercise>Q 35

The diagram shows the arrangement of cells inside the leaf of a green plant. (No cell contents are shown)

Which cells normally contain chloroplasts?
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