Biology
Grade-7
Easy
Question
Analyze the type of cells present on the surface of leaves of the plants that absorb carbon dioxide from the atmosphere.
- Mesophyll cells
- Parenchyma cells
- Xylem
- Guard cells
The correct answer is: Guard cells
- Stomata are the tiny openings present on the surfaces of leaves
- These stomatal openings are guarded by guard cells
- The change in turgor pressure of the guardcell regulates the size of the pore
- Guard cells control influx and effluent of carbondioxide andwater from the leaves
Stomatal pore is surrounded by guard cells
Related Questions to study
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A  |
1. These are the primary sites of photosynthesis |
B  |
2. The light-dependent reactions |
C  |
3. The light-independent reactions |
| A |
1. These are the primary sites of photosynthesis |
| B |
2. The light-dependent reactions |
| C |
3. The light-independent reactions |
BiologyGrade-7
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Suggest one word for each of the following statements.
1. Each __________ cell contains organelles called chloroplasts, which are specialized in carrying out the reactions of photosynthesis.
2. The light-dependent reactions take place in the _________membrane and require a continuous supply of light energy.
3. The Calvin cycle, also called the light-independent reactions, takes place in the ___________.
4. Different chemical reactions occur in the different parts of the ________.
Suggest one word for each of the following statements.
1. Each __________ cell contains organelles called chloroplasts, which are specialized in carrying out the reactions of photosynthesis.
2. The light-dependent reactions take place in the _________membrane and require a continuous supply of light energy.
3. The Calvin cycle, also called the light-independent reactions, takes place in the ___________.
4. Different chemical reactions occur in the different parts of the ________.
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Observe the image and choose the correct statement.
Observe the image and choose the correct statement.
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Choose the odd one out
Choose the odd one out
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Carbon dioxide enters the plant through the stroma of the chloroplast. State true or false.
Carbon dioxide enters the plant through the stroma of the chloroplast. State true or false.
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Choose the correct statement in terms of photosynthetic pigments.
Choose the correct statement in terms of photosynthetic pigments.
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________________transform light energy into chemical energy through a process called photosynthesis, which is then used to energize cellular processes.
________________transform light energy into chemical energy through a process called photosynthesis, which is then used to energize cellular processes.
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_______________ is a green pigment that can be found in the mesosomes of cyanobacteria and the chloroplasts of plant cells.
_______________ is a green pigment that can be found in the mesosomes of cyanobacteria and the chloroplasts of plant cells.
BiologyGrade-7
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Match the following:
| 1.Carbon dioxide and water |
a. A higher carbon dioxide concentration |
| 2. Formation of glucose |
b. The two reactants in the photosynthesis reaction |
| 3. Speed up the process of photosynthesis |
c. Carbon dioxide from the air and hydrogen from water molecules are combined |
Match the following:
| 1.Carbon dioxide and water |
a. A higher carbon dioxide concentration |
| 2. Formation of glucose |
b. The two reactants in the photosynthesis reaction |
| 3. Speed up the process of photosynthesis |
c. Carbon dioxide from the air and hydrogen from water molecules are combined |
BiologyGrade-7
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Usually, carbon dioxide in the range of ___________ is adequate for photosynthesis.
Usually, carbon dioxide in the range of ___________ is adequate for photosynthesis.
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Which among the following parts of the green plants comprise chloroplasts?
Which among the following parts of the green plants comprise chloroplasts?
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Which among the following are the sites of photosynthesis in plants and blue-green algae?
Which among the following are the sites of photosynthesis in plants and blue-green algae?
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The _________ produced during photosynthesis is then used to fuel various cellular activities.
The _________ produced during photosynthesis is then used to fuel various cellular activities.
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The by-product of the photosynthesis process is __________
Oxygen is the byproduct of photosynthesis
The by-product of the photosynthesis process is __________
BiologyGrade-7
Oxygen is the byproduct of photosynthesis
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The process by which plants make their own food is called ___________.
The process by which plants make their own food is called ___________.
BiologyGrade-7
