Reading Passage:
Photosynthesis is the process by which green plants produce their own food using sunlight, carbon dioxide, and water. This process takes place in the chloroplasts of plant cells, where chlorophyll absorbs light energy. The energy is then used to convert carbon dioxide and water into glucose and oxygen.
This process is essential for life on Earth because it provides the primary source of energy for nearly all living organisms. Plants serve as the base of the food chain, and the oxygen released during photosynthesis is vital for the survival of animals and humans.
However, environmental factors such as light intensity, temperature, and the availability of water can affect the rate of photosynthesis. Scientists continue to study this process to improve agricultural productivity and address global food challenges.
What is the main idea of the passage?
A.
Photosynthesis only occurs in animals.
B.
Photosynthesis is a vital process that supports life on Earth.
C.
Chlorophyll is the most important molecule.
D.
Plants do not need sunlight.
E.
Oxygen is harmful to living organisms.
2
Reading Passage:
Photosynthesis is the process by which green plants produce their own food using sunlight, carbon dioxide, and water. This process takes place in the chloroplasts of plant cells, where chlorophyll absorbs light energy. The energy is then used to convert carbon dioxide and water into glucose and oxygen.
This process is essential for life on Earth because it provides the primary source of energy for nearly all living organisms. Plants serve as the base of the food chain, and the oxygen released during photosynthesis is vital for the survival of animals and humans.
However, environmental factors such as light intensity, temperature, and the availability of water can affect the rate of photosynthesis. Scientists continue to study this process to improve agricultural productivity and address global food challenges.
Where does photosynthesis occur?
A.
In the chloroplasts
B.
In the roots
C.
In the soil
D.
In the air
E.
In the stem
3
Reading Passage:
Photosynthesis is the process by which green plants produce their own food using sunlight, carbon dioxide, and water. This process takes place in the chloroplasts of plant cells, where chlorophyll absorbs light energy. The energy is then used to convert carbon dioxide and water into glucose and oxygen.
This process is essential for life on Earth because it provides the primary source of energy for nearly all living organisms. Plants serve as the base of the food chain, and the oxygen released during photosynthesis is vital for the survival of animals and humans.
However, environmental factors such as light intensity, temperature, and the availability of water can affect the rate of photosynthesis. Scientists continue to study this process to improve agricultural productivity and address global food challenges.
What is produced during photosynthesis?
A.
Carbon dioxide and water
B.
Only oxygen
C.
Glucose and oxygen
D.
Light energy
E.
Chlorophyll
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