NCERT Class X Science Class: Chapter –6. Life Processer – Part-5

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Question 24:

The blood leaving the tissues becomes richer in

(a) Carbon dioxide

(b) Water

(c) Hemoglobin

(d) Oxygen

Answer: A

Image blood leaving the tissues becomes richer in Carbon dioxide

Image Blood Leaving the Tissues Becomes Richer in Carbon Dioxide

Image blood leaving the tissues becomes richer in Carbon dioxide

Question 25:

Which of the following is an incorrect statement?

(a) Organisms grow with time

(b) Organisms must repair and maintain their structure

(c) Movement of molecules does not take place among cells

(d) Energy is essential for life processes

Answer: C

Question 26:

The internal (cellular) energy reserve in autotrophs is

(a) Glycogen

(b) Protein

(c) Starch

(d) Fatty acid

Answer: C

Question 27:

Which of the following equations is the summary of photosynthesis?

(a)

(b)

(c)

(d)

Answer: C

Image equations is the summary of photosynthesis

Image Equations is the Summary of Photosynthesis

Image equations is the summary of photosynthesis

Question 28:

Choose the event that does not occur in photosynthesis

(a) Absorption of light energy by chlorophyll

(b) Reduction of carbon dioxide to carbohydrates

(c) Oxidation of carbon to carbon dioxide

(d) Conversion of light energy to chemical energy

Answer: C

Image photosynthesis

Image Photosynthesis

Image photosynthesis

Question 29:

The opening and closing of the stomatal pore depends upon

(a) Oxygen

(b) Temperature

(c) Water in guard cells

(d) Concentration of in stomata

Answer: C

Image opening and closing

Image Opening and Closing

Image opening and closing