Photosynthesis: Understanding the Basics

Open Ended

Do Now:

Explain if plants are prokaryotic or eukaryotic and why.

Multiple Choice

What is the primary purpose of photosynthesis?

• To break down glucose into energy

• To convert light energy into chemical energy

• To absorb carbon dioxide from the atmosphere

• To produce oxygen for animals

Multiple Choice

Which of the following is NOT an autotroph?

• Algae
• Heterotrophs (e.g., animals) are NOT autotrophs.
• Plants
• Cyanobacteria

Multiple Choice

During photosynthesis, which form of energy is converted into chemical energy stored in glucose?

• Heat energy

• Light energy

• Sound energy

• Mechanical energy

Multiple Choice

What is the function of the stomata in a plant leaf?

• To absorb water

• To capture light energy

• To allow gas exchange

• To transport sugars

Multiple Choice

Where does photosynthesis occur in plant cells?

• Nucleus

• Ribosomes

• Chloroplasts

• Mitochondria

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Multiple Choice

In the photosynthesis equation, what are the products?

• Carbon dioxide & water

• Glucose & oxygen

• Glucose and carbon dioxide

• Water & oxygen

Multiple Choice

Why do plants appear green?

• Chlorophyll absorbs green light

• Chlorophyll reflects green light

• Chlorophyll absorbs all colors of light equally

• Plants produce green pigments in their roots

Multiple Choice

What is the role of pigments like chlorophyll in photosynthesis?

• To break down sugars for energy

• To absorb light energy used to power chemical reactions

• To transport oxygen throughout the plant

• To produce carbon diocide for the plant to use

Multiple Choice

Which of the following abiotic factors directly affects the rate of photosynthesis?

• wind speed

• light intensity

• presence of soil

• availability of nutrients

Multiple Choice

Where is chlorophyll found in the chloroplast?

• stroma

• thylakoid membranes

• nucleus

• cytoplasm

Multiple Choice

What is produced in the light-dependent reactions of photosynthesis?

• ATP, NADPH, and oxygen
• NADH and glucose
• Oxygen and carbon dioxide
• ATP and glucose

Multiple Choice

Which of the following is NOT required in the Calvin cycle (light-independent reactions)?
A) Carbon dioxide
B) Light
C) ATP
D) NADPH

• Carbon dioxide

• light

• ATP

• NADPH

Open Ended

Exit Ticket:

A plant is placed in an environment where the light intensity is reduced significantly, but all other conditions remain optimal. Predict how this change in light availability might affect the rate of photosynthesis, specifically the light-dependent and light-independent reactions. Explain your reasoning.