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29 questions
In the absence of which of the following will photosynthesis not occur in leaves?
vacuole
stomata
chlorophyll
cytoplasm
Pitcher plant traps insects because it grows in soils which lack in ---------
Nitrogen
Carbon dioxide
Oxygen
Micro-organisms
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)
The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is
autotrophic
parasitic
saprophytic
symbiotic
insectivorous plant is
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
Which of the following raw material is available in the air for photosynthesis?
oxygen
carbon dioxide
nitrogen
hydrogen
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
Which gas is produced during photosynthesis?
carbon dioxide
oxygen
hydrogen
nitrogen
Which of the following is a parasite?
Fungus
Cuscuta
Mushroom
Bacteria
What are the nutrients plants get from Air?
Water
Oxygen
Carbon Dioxide
Chlorophyll
Sunlight
What protects Stomata and helps it in opening and closing?
Guard Cells
Leaf
Stem
Carbon Dioxide
Which bacteria is there in the roots of the plants to convert atmospheric nitrogen to its solid form?
Coronovirus
Nipha Virus
Treponama
Rhizobium
What is the equation for photosynthesis
Carbon dioxide + water sunlight + chlorophyll = glucose + oxygen
Glucose + water + sunlight + oxygen = carbon dioxide
Water and minerals are absorbed through...
flowers.
leaves.
roots.
Leaves absorb CO2 through...
mouth.
stomata.
nose.
Do plants grow more if you speak to them?
No, they can't speak.
Yes, because they use the CO2 we expel.
The process of Photosynthesis produces
Carbon Dioxide
Nitrogen
Oxygen
Hydrogen
Ultimate source of energy for all living organisms is
Plants
Atmosphere
Earth
Sun
Foods synthesized in the process of Photosynthesis by plants is stored as
Starch
Protein
Vitamins
Fats
Which of the following is not necessary for photosynthesis
Chlorophyll
Carbon dioxide gas
Oxygen
Water
Organisms other than plants which contain Chlorophyll are
Algae
Protozoa
Virus
Fungi
Some organisms live together and share shelter and nutrients. This is called
symbiotic relationship
parasitic relationship
predator prey relationship
None of the above
Fungi does not contain chlorophyll to synthesize their food. Then how do they get their food?
From dead and decaying plants.
By photosynthesis.
By eating small insects which come near it.
From the water we pour near it.
A plant was kept in a dark room for a week. When its leaves were tested with iodine solution, it did not show the presence of starch. From this experiment we can conclude that ____ is essential for photosynthesis.
sunlight
water
carbon Dioxide
oxygen
Acacia trees are gaurded by
Snakes
Ants
Insects
Parasites
During the day - time , The photosynthesis and respiration occur at the ______________ time
Same
one after the other
different
day after the day
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