Biology
Grade-7
Easy
Question
Chlorophylls absorb light energy, which is converted into chemical energy through the formation of two compounds, ATP— an energy storage molecule, and NADPH— a reduced (electron-bearing) electron carrier. State true or false.
- True
- False
Hint:
Light energy is converted into chemical energy in photosynthesis
The correct answer is: True
- In light department reactions the energy from the sunlight is absorbed by a chlorophyll
- This light energy is converted into chemical energy
- This chemical energy is stored in the form of ATP and NADPH
- Light energy is used to split water producing oxygen and electrons that produces ATP and NADPH
Related Questions to study
Biology
__________ diffuse carbon dioxide into the mesophyll layer and let the oxygen out.
- Stroma
- Stomata
- Thylakoid
- Granum
__________ diffuse carbon dioxide into the mesophyll layer and let the oxygen out.
BiologyGrade-7
- Stroma
- Stomata
- Thylakoid
- Granum
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Pick the odd one out.
- Carbon dioxide
- Water
- Sunlight
- Oxygen
Pick the odd one out.
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- Carbon dioxide
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- Sunlight
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Photosynthetic organisms also remove large quantities of carbon dioxide from the atmosphere and use the carbon atoms to build ________________.
- Organic molecule
- Glucose
- Inorganic molecule
- Both Organic molecule and Glucose
Photosynthetic organisms also remove large quantities of carbon dioxide from the atmosphere and use the carbon atoms to build ________________.
BiologyGrade-7
- Organic molecule
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- Inorganic molecule
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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
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Analyze the type of cells present on the surface of leaves of the plants that absorb carbon dioxide from the atmosphere.
BiologyGrade-7
- Mesophyll cells
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Biology
A |
1. These are the primary sites of photosynthesis |
B |
2. The light-dependent reactions |
C |
3. The light-independent reactions |
- A-2, b-1, c-3
- A-3, b-1, c-2
- A-1, b-2, c-3
- A-2, b-3, c-1
A |
1. These are the primary sites of photosynthesis |
B |
2. The light-dependent reactions |
C |
3. The light-independent reactions |
BiologyGrade-7
- A-2, b-1, c-3
- A-3, b-1, c-2
- A-1, b-2, c-3
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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 ________.
- 1-Mesophyll, 2-stroma, 3-thylakoid, 4-chloroplast
- 1-Thylakoid, 2-mesophyll, 3-stroma, 4-chloroplast
- 1-Mesophyll, 2-thylakoid, 3-stroma, 4-chloroplast
- 1-Mesophyll, 2-chloroplast, 3-thylakoid, 4-stroma
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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- 1-Mesophyll, 2-stroma, 3-thylakoid, 4-chloroplast
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Biology
Observe the image and choose the correct statement.

- Function of algae and autotrophic plants are similar.
- Algae can produce their own food through the process of cellular respiration.
- Presence of carotene pigments enhances the process of making food in algae.
- Such kind of green algae contains xanthophyll pigment, which is responsible for the green color.
Observe the image and choose the correct statement.

BiologyGrade-7
- Function of algae and autotrophic plants are similar.
- Algae can produce their own food through the process of cellular respiration.
- Presence of carotene pigments enhances the process of making food in algae.
- Such kind of green algae contains xanthophyll pigment, which is responsible for the green color.
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Choose the odd one out
- Thylakoid
- Stroma
- Grana
- Lamina
Choose the odd one out
BiologyGrade-7
- Thylakoid
- Stroma
- Grana
- Lamina
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Carbon dioxide enters the plant through the stroma of the chloroplast. State true or false.
- True
- False
Carbon dioxide enters the plant through the stroma of the chloroplast. State true or false.
BiologyGrade-7
- True
- False
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Choose the correct statement in terms of photosynthetic pigments.
- Chloroplasts, or plastids with green color, are found throughout the plant body.
- The structure of chlorophyll consists of 4 nitrogen atoms that surround a magnesium atom.
- Chlorophyll is made up of a combination of chlorophylls c and d.
- Chlorophyll is a green pigment that can be found in the meristematic tissue of cyanobacteria.
Choose the correct statement in terms of photosynthetic pigments.
BiologyGrade-7
- Chloroplasts, or plastids with green color, are found throughout the plant body.
- The structure of chlorophyll consists of 4 nitrogen atoms that surround a magnesium atom.
- Chlorophyll is made up of a combination of chlorophylls c and d.
- Chlorophyll is a green pigment th