Question

photosynthesis worksheet
word bank
stoma chloroplast thylakoids
light - dependent reactions sun oxygen
atp nadph glucose
light - independent reactions water carbon dioxide
directions: use the word bank to answer questions 3 - 9

1. write the chemical equation for photosynthesis below (using chemical formulas)
2. write the chemical equation for photosynthesis below using words (carbon dioxide instead of co₂)
3. energy captured in photosynthesis comes from the
4. photosynthesis occurs inside the of a plant cell
5. the first step of photosynthesis is called the

and they occur in the of the chloroplast.

1. the second step of photosynthesis is called the

and they occur in the of the chloroplast.

1. during the light - dependent reactions, is split and produces as a waste product.
2. the two energy carriers and are made in the light - dependent reactions and then are used to power the light - independent reactions (calvin cycle)
3. during the light - independent reactions, reacts with atp and nadph to produce the sugar

Explanation:

1. The chemical equation for photosynthesis using chemical formulas is \(6CO_{2}+6H_{2}O

ightarrow C_{6}H_{12}O_{6}+6O_{2}\) (light and chlorophyll are required, usually written above the arrow).

1. Using words: Carbon dioxide + water → glucose + oxygen (with light and chlorophyll as conditions).
2. Energy in photosynthesis comes from the sun.
3. Photosynthesis occurs inside the chloroplast of a plant cell.
4. The first step is the light - dependent reactions and they occur in the thylakoids of the chloroplast.
5. The second step is the light - independent reactions and they occur in the stroma of the chloroplast.
6. During light - dependent reactions, water is split and produces oxygen as a waste product.
7. The two energy carriers are ATP and NADPH.
8. During light - independent reactions, carbon dioxide reacts with ATP and NADPH to produce the sugar glucose.

Answer:

1. \(6CO_{2}+6H_{2}O

ightarrow C_{6}H_{12}O_{6}+6O_{2}\) (light and chlorophyll above the arrow)

1. Carbon dioxide + water → glucose + oxygen (light and chlorophyll as conditions)
2. sun
3. chloroplast
4. light - dependent reactions; thylakoids
5. light - independent reactions; stroma
6. water; oxygen
7. ATP; NADPH
8. carbon dioxide; glucose