Photosynthesis

Why do leaves look green?

• They contain a molecule named chlorophyll.

• They reflect blue light.

• They absorb all colors of light equally.

• They are made of green minerals.

What are the main products of photosynthesis?

• Glucose and oxygen.

• Carbon dioxide and water.

• Nitrogen and glucose.

• Oxygen and nitrogen.

What is the light-independent reaction (Calvin Cycle) in photosynthesis?

• It is the first stage of photosynthesis where sunlight is captured.

• It is the second stage of photosynthesis where ATP and NADPH are used to convert carbon dioxide into glucose.

• It is a process that occurs only at night in plants.

• It is the stage where oxygen is produced as a byproduct.

What is the correct equation for PHOTOSYNTHESIS?

• light + carbon dioxide + water --> glucose + oxygen

• glucose + oxygen --> light + carbon dioxide + water

• carbon dioxide + water --> glucose + light + oxygen

• oxygen + glucose --> carbon dioxide + water + light

What is the function of stomata in plants?

• To absorb water from the soil

• To allow for gas exchange, including the intake of carbon dioxide

• To provide structural support to the plant

• To store nutrients for the plant

What is photosynthesis?

• The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

• A method used by animals to convert food into energy.

• The way in which plants absorb water from the soil.

• A chemical reaction that occurs in the dark to produce energy.

Why is photosynthesis important for life on Earth?

• It produces carbon dioxide which is essential for respiration.

• It generates heat energy for plants to survive.

• It produces oxygen and organic compounds that are the foundation of the food chain.

• It helps in the formation of soil nutrients.

What is the ultimate ORIGINAL source of energy for living things?

• The Sun.

• The Moon.

• Volcanic Activity.

• Geothermal Energy.

Which molecule safely carries high energy electrons during Photosynthesis?

• NADPH

• ATP

• FADH2

• Glucose

How does carbon dioxide get into the leaves of a plant?

• It enters through the stomata.

• It is absorbed by the roots.

• It diffuses through the bark.

• It is taken in by the flowers.