Photosynthesis

Multiple Choice

Which of the following organisms is NOT a photoautotroph?

• Plant

• Algae

• Some bacteria

• Fungi

Match

Match the following

• Autotroph

• Heterotroph

• Other name for Autotroph

• Other name for Heterotroph

• Organelle needed to produce food

Can make its own food

Obtains its food from other organisms

Producer

Consumer

Chloroplasts

• Can make its own food

• Obtains its food from other organisms

• Producer

• Consumer

• Chloroplasts

Hotspot

Which THREE are Autotrophs?

Multiple Choice

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

Multiple Choice

What are the reactants in the photosynthesis formula?

• Oxygen and Sugar

• Carbon Dioxide and Water

• Light Energy and Sugar

Multiple Choice

What are the products in the photosynthesis formula?

• A) Carbon Dioxide and Water

• B) Oxygen and Sugar

• C) Light Energy and Water

Multiple Choice

Which organelle in plant cells contains the pigment chlorophyll that captures light energy for photosynthesis?

• Mitochondria

• Nucleus

• Chloroplast

• Vacuole

Open Ended

Explain the role of the cuticle in the leaf during the light reaction of photosynthesis.

Multiple Choice

#7 - two cells that surround each stoma; regulates gas exchange by opening and closing the pore.

• Epidermal cells

• Guard cells

• Stomata cells

• Xylem cells

Multiple Choice

Which structure helps prevent water loss and protects the leaf?

• Palisades mesophyll
• Spongy mesophyll
• Vascular tissue
• Cuticle

Multiple Choice

The outermost layer of CELLS of the leaf is the

• cuticle

• epidermis

• spongy mesophyll

• bundle sheath

Multiple Choice

What's the main function of the leaf?

• Absorb Sunlight

• Make Food

• Attract Insects

• Move Water and Minerals

Drag and Drop

# 1 is the site of​

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and is called the​

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Drag these tiles and drop them in the correct blank above

photosynthesis

chloroplast

thylakoid

stroma

chlorophyll

Multiple Choice

The interior space of the chloroplast is called:

• Lamellae
• Grana
• Stroma
• Thylakoids

Multiple Choice

The stacks of disks in the chloroplast are called:

• Lamellae
• Grana
• Stroma
• Thylakoid

Multiple Choice

What is the area inside the thylakoid membrane called?

• Lumos

• Stroma

• Thylakoid space / Thylakoid Lumen

• Strep Throat

Multiple Choice

Pigment in green plants that captures the energy in sunlight is called _______.

• Pigment
• Chlorophyll
• Stomata
• Green Thing

Multiple Select

Which of the following are sections of a chloroplast?

• Stroma

• Grana

• Nucleus

• Thylakoid

Labelling

Label the diagram.

Drag labels to their correct position on the image

granum

thylakoid

chloroplast

stroma

Multiple Choice

Thylakoids are arranged in stacks called ____.

• Lamellae
• Stroma
• Granum
• Glucose

Multiple Choice

What are the two products of the light reactions that are needed for the calvin cycle?

• NAD and NADPH
• NADP + and Glucose
• NADPH and ATP
• Oxygen and NADPH

Multiple Choice

Where do the light reactions happen?

• mitochondria membrane
• thylakoid membrane
• stroma
• central vacuole

Multiple Choice

Which of the following is NOT a product of the light reactions?

• Oxygen

• NADPH

• ATP

• Glucose (Sugar)

Multiple Choice

What gas does the process of photosynthesis release into the atmosphere?

• oxygen
• carbon dioxide
• water
• nitrogen

Multiple Choice

In the ________________________, energy from the sun is used to make ATP 

• light-independent reaction
• dark reaction
• light-dependent reaction
• Calvin cycle

Multiple Choice

Where does the oxygen released by the light dependent reaction come from?

• NADPH

• ATP

• Water

• Carbon Dioxide

Multiple Choice

A green molecule in chloroplasts that absorbs some energy in visible light. This molecule has two forms, a and b, which absorb blue and red light from the visible light.

• ATP synthase

• chlorphyll

• stroma

• thylakoid

Multiple Choice

True or False. The stroma is located within the thylakoid membrane.

• True

• False

Multiple Choice

True or False. Light dependent reactions occur in the grana.

• True

• False

Multiple Choice

True or False. Membranes contain chloroplasts but not chlorophyll

• True

• False

Open Ended

Light energy is collected in the thylakoid membrane’s photosynthetic pigment. These pigments’ electrons will "get excited" when light touches them and there is light energy in that excitement. What is the next step after the electrons get excited?

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Multiple Choice

What is the main function of Photosystem II in the light reaction of photosynthesis?

• To produce glucose directly

• To capture light energy and excite electrons

• To synthesize ATP from ADP and P

• To transport water into the leaf

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Open Ended

Explain the role of NADPH and ATP in the Calvin cycle.

Multiple Choice

Which enzyme initiates the Calvin cycle by fixing carbon dioxide?

• Rubisco

• RuBP

• ATP synthase

• NADPH oxidase

Multiple Choice

What greenhouse gas does the Calvin Cycle use?

• Oxygen

• Methane

• Carbon Dioxide

• Water Vapor

Multiple Choice

True or False. Carbon fixation occurs within the thylakoid membrane.

• True

• False

Multiple Choice

What happens to carbon dioxide in the Calvin cycle?

• It is released as a waste product.

• It combines with RuBP acceptors to form G3P.

• It is converted directly into glucose.

• It is used to regenerate ATP from ADP.

Multiple Choice

What is the final product of the reduction stage in the Calvin Cycle after the phosphate group is lost from 1,3-bisphosphoglycerate?

• 3-phosphoglycerate (3-PGA)

• Glyceraldehyde 3-phosphate (G3P)

• Ribulose bisphosphate (RuBP)

• Phosphoenolpyruvate (PEP)

Multiple Select

PGAL can be converted into which of the following end products?

• Glucose

• Sucrose

• Cellulose

• Lipids

Multiple Choice

Which of the following is a limitation of C3 plants?

• Limited by sunlight due to Rubisco

• Can fix CO2 efficiently in high temperatures

• Use PEP for CO2 fixation

• Grow fastest in warmer climates

Multiple Choice

In C3 photosynthesis, the reactions that require ATP take place in

• the light reactions alone

• the calvin cycle only

• both the light reactions and the calvin cycle

• the citric acid cycle

Multiple Choice

Which cells in a C4 plant leaf are primarily responsible for photosynthesis?

• Mesophyll cells

• Bundle-sheath cells

• Vein cells

• Stoma cells

Multiple Choice

How do C4 plants prevent photorespiration?

• they close the stomata during the day

• they fix CO₂ during the night

• they fix CO₂ in a cell that does not contain RubisCO

• they fix CO₂ in the guard cells

Multiple Choice

At what time during the day would the cacti stomata close?

• During the day, to change CO2 to oxaloacetate

• During the day, to prevent water loss

• During the night, to change CO2 to oxoloacetate

• During the day, to prevent water loss

Multiple Choice

Why is rubisco an important enzyme?

• It catalyzes the reaction which allows CO2 to be stored for CAM plants

• It catalyzes the pyruvate to oxaloacetate

• It catalyzes the carbon fixation in CAM plants

Multiple Choice

Which of these would be considered a CAM pathway plant?

• cactus

• corn

• oak tree

• algae

Multiple Choice

Which of the following organisms are most likely to be found in extreme environments such as deep ocean floors or volcanic vents?

• CAM plants

• Chemoautotrophs

• C4 plants

• Mesophyll cells

Multiple Select

Select all the statements that correctly describe chemoautotrophs.

• They use light to transfer electrons.

• They are mostly bacteria.

• They are adapted to extreme environments.

• They use chemical reactions to transfer electrons.

Multiple Choice

What is the main difference between photoautotrophs and chemoautotrophs?

• Photoautotrophs use light for food production, while chemoautotrophs use chemicals.

• Photoautotrophs use chemicals for food production, while chemoautotrophs use light.

• Photoautotrophs are only found in plants, while chemoautotrophs are found in animals.

• Photoautotrophs cannot make their own food, while chemoautotrophs can.