Photosynthesis: The Process of Making Food in Plants

Photosynthesis is the process by which:

• plants convert sunlight into chemical energy

• animals produce energy from food

• humans breathe in oxygen

• machines generate electricity

Fill in the blank: Photosynthesis takes place in the ________, specialized structures in plant cells.

• chloroplasts

• mitochondria

• ribosomes

• nucleus

Which of the following is the correct photosynthesis equation?

• 6CO2 + 6H2O + sunlight → C6H12O6 + 6O2

• 6O2 + C6H12O6 → 6CO2 + 6H2O + sunlight

The key components of photosynthesis are:

• Chlorophyll, water, carbon dioxide, and sunlight

• Oxygen, nitrogen, and hydrogen

• Glucose, fructose, and sucrose

• ATP, NADPH, and FADH2

Fill in the blank: ________ is a green pigment in the chloroplasts that captures sunlight.

• Chlorophyll

• Carotene

• Xanthophyll

• Anthocyanin

Plants are green because of the presence of which pigment?

• Chlorophyll

• Carotene

• Xanthophyll

• Anthocyanin

How do we measure photosynthesis?

• By measuring oxygen production

• By measuring carbon dioxide uptake

• By measuring glucose production

• By measuring chlorophyll concentration

Fill in the blank: Energy is stored in ________ and ________ for the next stage of photosynthesis.

• ATP and NADPH

• Glucose and Oxygen

• Carbon Dioxide and Water

• Chlorophyll and Sunlight

What is the organelle where photosynthesis happens?

• Thylakoid

• Chloroplast

• Stroma

• Stomata

Fill in the blank: Flattened membranes inside the chloroplast where light-dependent reactions occur are called _______.

• Thylakoid

• Stroma

• Granum

• Chlorophyll