Photosynthesis Quiz

What is produced in photosynthesis?

Passage: In a study on plant growth, scientists observed that plants exposed to adequate sunlight grew significantly better than those kept in minimal light conditions. The sunlight-exposed plants displayed a deeper green color and more robust leaves. The researchers noted that these plants had higher glucose levels, which they attributed to the increased rate of photosynthesis.

Question: Based on the passage, which statement best explains why plants exposed to more sunlight display better growth?

A) Sunlight stimulates the production of chlorophyll, which is essential for photosynthesis.
B) Sunlight increases the rate of photosynthesis, leading to higher glucose production for growth.
C) Sunlight enhances the absorption of minerals from the soil, improving plant health.
D) Sunlight allows for faster transpiration, enhancing nutrient uptake from the soil.

Passage: Two identical types of plants are grown under different conditions. One plant is located in a sunny field, where it receives direct sunlight for most of the day. The other is in a deep forest, where the canopy of trees significantly reduces the amount of sunlight it receives.

Question: Based on the passage, which plant is likely to produce more oxygen?

A) The plant in the sunny field, because it receives more sunlight which is crucial for photosynthesis.
B) The plant in the deep forest, because the cooler temperatures reduce the plant’s stress.
C) Both plants produce the same amount of oxygen because they are the same type of plant.
D) It is impossible to determine without knowing the type of plant.

Photosynthesis allows plants to make their own food using sunlight, water, and carbon dioxide, producing oxygen and energy-rich sugar, glucose. This glucose is vital for plant growth. Two basil plants are being grown for a school project; one is on a sunny windowsill with plenty of light, and the other is in a shady corner with much less light.

Question: Which basil plant is expected to grow better?

A) It only depends on the soil quality.
B) The one in the shady corner, since basil needs little light.
C) Both should grow the same, as light isn’t important.
D) The one on the sunny windowsill, since it gets more light for photosynthesis.

Passage: Photosynthesis is a vital biological process that takes place in the chloroplasts of plant cells. This process allows plants to capture energy from sunlight using a green pigment called chlorophyll. During photosynthesis, plants take in carbon dioxide (CO₂) from the air through small openings in their leaves called stomata and absorb water (H₂O) from the soil through their roots. These ingredients are then used to produce glucose, a sugar that serves as the primary energy source for the plant. Oxygen (O₂) is produced as a byproduct and released back into the atmosphere.

Question: Which option correctly describes what happens during photosynthesis?

A) Plants convert nitrogen and sunlight into glucose and oxygen.
B) Plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.
C) Plants absorb carbon dioxide and water to release glucose and nitrogen.
D) Plants transform soil nutrients and carbon dioxide into water and oxygen.