Biology - Mock Test 60

Question 591

Number of factors that affect rate of photosynthesis are

A) four B) three C) two D) five

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Question 592

At midday, leaves

A) respiration B) photosynthesis C) mainly photosynthesis and some respiration D) none of them

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Question 593

Largest percentage composition in air is of

A) argon B) oxygen C) nitrogen D) carbon dioxide

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Question 594

Color of pigment in chloroplast is

A) green B) black C) yellow D) red

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Question 595

Process of photosynthesis takes place in the

A) Starch and Sucrose B) Glucose and oxygen C) chloroplast D) system

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Question 596

Guard cells flanking stomata control oxygen and carbon dioxide entering leaf by opening and closing

A) veins B) leaf pores C) stoma D) palisade

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Question 597

Which of these is true about photosynthesis?

A) It occurs in both animal and plants B) It occurs in both fungi and plants C) it is a breaking down process D) it is building up process

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Question 598

Photosynthesis decreases concentration of carbon dioxide in air and other harmful wastes, this increases purification of respiratory disease for

A) none of them B) living beings C) only plants D) only animals

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Question 599

Veins of leaves contain vascular bundles known as

A) closed stoma B) open stoma C) phylum D) xylem

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Question 600

In photosynthesis, sugar is made by using

A) energy B) carbon dioxide C) oxygen D) sun light

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