D. Complete The crossword with the help of the clues provided
ACROSS.
1. Organism That Depend On Other organism For Nutrition
5. An Instrument To see cells
6. Living organism increase in numbers by this process
7. Movement from one place to Another
Answers
Answer:
- Hetrotroph
- Microscope
- Reproduction
- Migration
Question A:
Solve the following crossword puzzle:
figure
Across
3. A green pigment found in leaves
4. It is a plant parasite
5. It is a fertilizer
Down
1. This solution is used to test the starch
2. Organism that provides nourishment to the parasite
3. It is an omnivore
ANSWER:
Page No 10:
Question B.1:
Haustoria in some plants are
(a) sucking roots
(b) sucking stem
(c) sucking branch
(d) sucking leaves
ANSWER:
(a) sucking roots
Haustoria are special sucking roots that are found in some parasitic plants like dodder.
Page No 10:
Question B.2:
Association of two different organisms in which both are benefited is called
(a) symbiosis
(b) nutrition
(c) saprophytic
(d) parasitic
ANSWER:
(a) symbiosis
Symbiosis is the association of two different organisms in which both are benefited.
Page No 10:
Question B.3:
The green colour pigment in the leaves is called
(a) chlorophyll
(b) chloroplast
(c) anthocyanin
(d) none of these
ANSWER:
(a) chlorophyll
The green-coloured pigment present in leaves is called chlorophyll.
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Question B.4:
Tiny pores found on the lower side of the leaves is called
(a) stomata
(b) guard cell
(c) both of these
(d) none of these
ANSWER:
(a) stomata
Stomata are tiny pores present on the lower side of leaves.
Page No 10:
Question B.5:
Which one of the following is a parasite?
(a) Mushroom
(b) Dodder
(c) Fungi
(d) Pitcher's plant
ANSWER:
(b) Dodder
Dodder (Amarbel) is a plant parasite that derives its food from the host plant with the help of its special sucking roots called haustoria.
Page No 10:
Question B.6:
Rhizobium is a good example
(a) insectivorous plant
(b) symbiosis
(c) parasitic plant
(d) none of these
ANSWER:
(b) symbiosis
Rhizobium and leguminous plants have a symbiotic relationship. Leguminous plants provide food and shelter to the bacteria and the bacteria provide nitrogen to the plants.
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Question B.7:
Autotrophic nutrition is found only in
(a) plants
(b) animals
(c) both of these
(d) none of these
ANSWER:
(a) plants
Autotrophic nutrition is found only in plants because only plants can produce their own food.
ANSWER:
1. Chlorophyll pigment is necessary for photosynthesis.
2. Iodine turns blue-black on reacting with starch.
3. Drosera and pitcher plant are insectivorous plants.
4. Plants produce glucose and oxygen with the help of energy derived from Sun.
5. Lichen is the mutual combination of alga and fungus.
6. Dodder is an example of parasite.