4. Fill in the blanks.
1. The end products of photosynthesis are
2. A chloroplast consists of two parts-
3. Grana are piles of flattened saclike bodies called
4. Plants exchange gases through openings on leaves called
5. Two bean-shaped
cells surround a stoma.
6. Carbon dioxide traps heat resulting in the
are pores on stems, tubers and fruits through which gases are exchanged.
s. In plants, carbon dioxide is liberated during
9. Aerobic respiration produces
carbon dioxide and energy.
10. Respiration that does not require oxygen is called
respiration
Answers
Question :-
1. The end products of photosynthesis are ________.
2. A chloroplast consists of two parts - ________ and ________.
3. Grana are piles of flattened sac - like bodies called ________.
4. Plants exchange gases through openings on leaves called ________.
5. Two bean-shaped cells surround a stoma is called ________.
6. Carbon dioxide traps heat resulting in the ________.
7. ________ are pores on stems, tubers and fruits through which gases are exchanged.
8. In plants, carbon dioxide is liberated during ________.
9. Aerobic respiration produces
carbon dioxide and energy in the presence of ________.
10. Respiration that does not require oxygen is called ________ respiration.
Answer :-
1. The end product of photosynthesis are oxygen, glucose and water.
The reaction of photosynthesis ;-
6CO₂ + 12H₂O ⇒ C₆H₁₂O₆ + 6O₂ + 6H₂O
So, 6 molecules of carbon dioxide reacts with 12 molecules of water to form 1 molecule of glucose, 6 molecules of oxygen and 6 molecules of hydrogen.
2. The two parts of chloroplast are grana and stroma.
Grana is the site of light reaction and are piles of thylakoids. Stroma is the site of dark reaction and contains cholorphyll and functional units.
3. Grana are piles of flattened sac - like bodies called thylakoids.
4. Plants exchange gases through openings on leaves called stomata.
Stomata are the small pores on leaves which allow gaseous exchange in plants.
5. Two bean-shaped cells surround a stoma is called guard cells.
Guard cells help the stomata to exchange gases.
6. Carbon dioxide traps heat resulting in the global warming.
The increase in the temperature of the earth due to greenhouse gases is called global warming.
7. Lenticels are pores on stems, tubers and fruits through which gases are exchanged.
As stomata are present on leaves, lenticels are present in the stem, tubers and fruits which also allows gaseous exchange.
8. In plants, carbon dioxide is liberated during respiration.
During the process of photosynthesis, plants take carbon dioxide and during respiration plants liberates carbon dioxide.
9. Aerobic respiration produces
carbon dioxide and energy in the presence of oxygen.
10. Respiration that does not require oxygen is called anaerobic respiration.
Question :-
1. The end products of photosynthesis are ________.
2. A chloroplast consists of two parts - ________ and ________.
3. Grana are piles of flattened sac - like bodies called ________.
4. Plants exchange gases through openings on leaves called ________.
5. Two bean-shaped cells surround a stoma is called ________.
6. Carbon dioxide traps heat resulting in the ________.
7. ________ are pores on stems, tubers and fruits through which gases are exchanged.
8. In plants, carbon dioxide is liberated during ________.
9. Aerobic respiration produces
carbon dioxide and energy in the presence of ________.
10. Respiration that does not require oxygen is called ________ respiration.
Answer :-
1. The end product of photosynthesis are oxygen, glucose and water.
The reaction of photosynthesis ;-
6CO₂ + 12H₂O ⇒ C₆H₁₂O₆ + 6O₂ + 6H₂O
So, 6 molecules of carbon dioxide reacts with 12 molecules of water to form 1 molecule of glucose, 6 molecules of oxygen and 6 molecules of hydrogen.
2. The two parts of chloroplast are grana and stroma.
Grana is the site of light reaction and are piles of thylakoids. Stroma is the site of dark reaction and contains cholorphyll and functional units.
3. Grana are piles of flattened sac - like bodies called thylakoids.
4. Plants exchange gases through openings on leaves called stomata.
Stomata are the small pores on leaves which allow gaseous exchange in plants.
5. Two bean-shaped cells surround a stoma is called guard cells.
Guard cells help the stomata to exchange gases.
6. Carbon dioxide traps heat resulting in the global warming.
The increase in the temperature of the earth due to greenhouse gases is called global warming.
7. Lenticels are pores on stems, tubers and fruits through which gases are exchanged.
As stomata are present on leaves, lenticels are present in the stem, tubers and fruits which also allows gaseous exchange.
8. In plants, carbon dioxide is liberated during respiration.
During the process of photosynthesis, plants take carbon dioxide and during respiration plants liberates carbon dioxide.
9. Aerobic respiration produces
carbon dioxide and energy in the presence of oxygen.
10. Respiration that does not require oxygen is called anaerobic respiration.