NCERT Class 10 Chapter 7 Life Process CBSE Board Sample Problems Multiple Choice Question

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To prepare a good temporary mount of the petunia leaf peel showing many stomata, the student has to get the peel from the

1. Lower surface of the leaf

2. Tip of the leaf

3. Point of attachment of the leaf to its petiole.

4. Upper surface of the leaf


Which of the following element is essential for the formation of protein?


2. Na

3. Ca

4. Fe


Instant source of energy is___________

1. Sucrose

2. Fats

3. Glucose

4. Amino acids


The breakdown of pyruvate to give carbon dioxide, water and energy takes place in _____.

1. Cytoplasm

2. Mitochondria

3. Chloroplast

4. Nucleus


Blood from superior vena cava flows into _____.

1. Right atrium

2. Right ventricle

3. Left atrium

4. Left ventricle


In which of the following vertebrate groups, heart does not pump oxygenated blood to different parts of the body?

1. Pisces and Amphibians

2. Amphibians and Reptiles

3. Amphibians only

4. Pisces only


The doctor measured Ravi’s blood pressure and said it is normal now. The range of Ravi’s blood pressure (systolic/diastolic) is likely to be

1. 120/80mm of Hg

2. 160/80mm of Hg

3. 120/60mm of Hg

4. 180/80mm of Hg


Observe the given graphical representation below and answer the given question

A, B and C the products of respiration

A, B and C the Products of Respiration

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Among A, B and C the products of respiration in A is likely to be-

1. Alcohol,, and 36 ATP

2. , and 36 ATP

3. Alcohol, and 2 ATP

4. Lactic acid, , and 2 ATP


If the structure marked X in the diagram given below is blocked then which of the processes will not occur?

If the structure marked X in the diagram

If the Structure Marked X in the Diagram

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1. Transpiration and respiration

2. Transpiration, photosynthesis and respiration

3. Respiration, transpiration and transportation

4. Respiration and photosynthesis