In the absence of which of the following will photosynthesis not occur in leaves?
vacuole
stomata
chlorophyll
cytoplasm
Q.7.
Which of the following raw material is available in the air for photosynthesis?
oxygen
carbon dioxide
nitrogen
hydrogen
Q.8.
Which of the following is not required for photosynthesis?
Sunlight
Oxygen
Water
Carbon dioxid
Q.9.
The main function of a leaf is:
To prepare food
To prevent disease
To support the plant
To give a proper shape
Q.10.
Which part of plant takes carbon dioxide from air for photosynthesis?
root hair
flowers
stomata
leaf veins
Q.11.
Oxygen liberated during photosynthesis come from ………………
Water
Carbon dioxide
Glucose
ChlorophyII
Q.12.
The main function of leaf is- (leaf ka main function Kya hota hei)
To prepare food
To prevent disease
To support the plant
To give a proper shape
To mantain soil
Q.13.
The equation for photosynthesis is
oxygen + water --> glucose + carbon dioxide
oxygen + glucose --> carbon dioxide + water
carbon dioxide + water --> glucose + oxygen
carbon dioxide + glucose --> oxygen + water
Q.14.
Organisms which prepare food for themselves using simple naturally available raw materials are referred to as
heterotrophs
autotrophs
parasites
saprophytes
Q.15.
What are absorbed through Soil?
Water
Minerals
Carbon Dioxide
Both A & B
Q.16.
Which of the following statements is/are correct?(i) All green plants can prepare their own food.(ii) Most animals are autotrophs.(iii) Carbon dioxide is not required for photosynthesis.(iv) Oxygen is liberated during photosynthesis.Choose the correct answer from the options below:
( i) and (iv)
(ii) only
(ii) and (iii)
(i) and (ii)
Q.17.
The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is
autotrophic
parasitic
saprophytic
symbiotic
Q.18.
When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?
stomata
midrib
vein
lamina
Q.19.
Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as
saprophyte
parasite
autotrophs
symbiosis
Q.20.
Chlorophyll traps light energy and converts it to chemical energy during photosynthesis.
True
False
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