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Nutrition In Plants

Question

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Distinguish between a parasite and a saprotroph.

Solution

Parasite	Saprotroph
The organism that grows on the body of another organism and derives nutrients from it is known as a parasite.	The organism that obtains nutrients from the dead or decaying organic matter is called saprotroph.
Examples of parasites are Cuscuta and orchids.	Examples of saprotrophs are fungi and some bacteria.

Some More Questions From Nutrition in Plants Chapter

Show with the help of a sketch that the plants are the ultimate source of food.

Fill in the blanks:
(a) Green plants are called ____ since they synthesise their own food.
(b) The food synthesised by the plants is stored as .
(c) In photosynthesis solar energy is captured by the pigment called _.
(d) During photosynthesis plants take in _and release _______.

Name the following:
(i) A parasitic plant with yellow, slender and tubular stem.
(ii) A plant that has both autotrophic and heterotrophic mode of nutrition.
(iii) The pores through which leaves exchange gases.

Tick the correct answer:
(a)Amarbel is an example of
(i) autotroph
(ii) parasite
(iii) saprotroph
(iv) host
(b)The plant which traps and feeds on insects is
(i) Cuscuta
(ii) china rose
(iii) pitcher plant
(iv) rose

Match the items given in Column I with those in Column II:

Column I

Column II

Chlorophyll

Bacteria

Nitrogen

Heterotrophs

Amarbel

Pitcher plant

Animals

Leaf

Insects

Parasite

Mark ‘T’ if the statement is true and ‘F’ if it is false:
(i) Carbon dioxide is released during photosynthesis. (T/F)
(ii) Plants which synthesise their food themselves are called saprotrophs. (T/F)
(iii) The product of photosynthesis is not a protein. (T/F)
(iv) Solar energy is converted into chemical energy during photosynthesis. (T/F)

Choose the correct option from the following:
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
(i) Root hair
(ii) Stomata
(iii) Leaf veins
(iv) Sepals

Choose the correct option from the following:
Plants take carbon dioxide from the atmosphere mainly through their:

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