Photosynthesis

Open Ended

Why is photosynthesis important?

Multiple Choice

Which of the following best describes the role of photosynthesis in an ecological food web?

• It provides energy for all living things by producing glucose.

• It consumes oxygen and releases carbon dioxide.

• It is only important for plants, not animals.

• It breaks down organic molecules into inorganic materials.

Fill in the Blanks

Plants use sunlight to turn water and carbon dioxide into

.

Multiple Choice

What evidence did Jan Baptisa van Helmont's experiment provide about plant growth?

• Plants gain most of their mass from water and carbon dioxide, not soil.

• Plants gain most of their mass from soil nutrients.

• Plants do not need water to grow.

• Plants only use sunlight for growth.

Multiple Select

Which of the following are products of photosynthesis?

• Glucose

• Oxygen

• Carbon dioxide

• Water

Open Ended

What is the process that uses the sun’s energy to make simple sugars?

Multiple Choice

Which of the following is NOT a type of cell found in plant leaves as shown in the diagram?

• Collenchyma

• Guard cells

• Neuron

• Palisade parenchyma

Open Ended

Explain the role of chloroplasts in plant cells and describe where they are found within the leaf structure.

Multiple Select

Which of the following structures are found inside a chloroplast?

• Grana

• Stroma

• Thylakoid

• Nucleus

Open Ended

How does the structure of a leaf help it absorb as much light as possible for photosynthesis?

Fill in the Blanks

Leaves are green because they contain the pigment

Multiple Choice

What are two main products made by chloroplasts during photosynthesis?

• Sugars and oxygen

• Water and carbon dioxide

• Proteins and fats

• Minerals and vitamins

Open Ended

Why are the stomata located on the underside of leaves?

Multiple Choice

Can you name the two important gases that go in and out of the leaves?

• Oxygen and Carbon Dioxide

• Oxygen and Nitrogen

• Carbon Dioxide and Methane

• Hydrogen and Oxygen

Multiple Choice

Which pigments are involved in absorbing light energy for photosynthesis, and what is the main pigment called?

• Chlorophyll a, Chlorophyll b, and Carotenoids; main pigment is Chlorophyll a

• Chlorophyll b, Carotenoids, and Anthocyanins; main pigment is Carotenoids

• Chlorophyll a, Anthocyanins, and Xanthophyll; main pigment is Chlorophyll b

• Carotenoids, Xanthophyll, and Chlorophyll c; main pigment is Chlorophyll c

Open Ended

Explain why plants appear green based on the process of photosynthesis.

Fill in the Blanks

Fill in the blank: The process by which plants make their own food using sunlight is called

.

Multiple Select

Which of the following factors, when increased, generally lead to an increase in the rate of photosynthesis (up to a certain point)?

• Light intensity

• Carbon dioxide concentration

• Temperature

• Oxygen concentration

Multiple Choice

Which factor will cause the rate of photosynthesis to decrease if it becomes too high?

• Light intensity

• Carbon dioxide concentration

• Temperature

• Water availability

Open Ended

Explain how light intensity, carbon dioxide concentration, and temperature each affect the rate of photosynthesis. Use the graphs provided to support your answer.

Multiple Choice

The process that uses the sun’s energy to make simple sugars is ____________.

• Cellular respiration

• Glycolysis

• Photosynthesis

• Photolysis

Multiple Choice

The function accomplished by the light-dependent reactions is ____________.

• Energy storage

• Sugar production

• Carbon fixation

• Conversion of sugar

Multiple Choice

Which of the following is a product of photosynthesis?

• Oxygen

• Carbon dioxide

• Water

• Sunlight

Open Ended

What do you know about photosynthesis?