Q.1
Cuscuta is an example of
  • autotroph
  • parasite
  • saprotroph
  • host
Q.2
The plant which traps and feeds on insects is
  • Cuscuta
  • China rose
  • Mushroom
  • Pitcher Plant
Q.3
Pitcher plant traps insects because it
  • is a heterotroph.
  • grows in soils which lack in nitrogen.
  • does not have chlorophyll.
  • has a digestive system like human beings.
Q.4
Rhizobium is an example of
  • Symbiosis
  • Parasites
  • Insectivorous
  • none of these
Q.5
A plant that is partially autotrophic
  • pitcher plant
  • fungus
  • pea
  • algae
Q.6
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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