Photosynthesis

Question 1

Organisms that consume materials as food for energy, such as animals, fungi, and some bacteria.

Answer 1

Heterotrophs

Question 2

Organisms that eat only plants.

Answer 2

Herbivores

Question 3

Organisms that eat other animals (meat).

Answer 3

Carnivores

Question 4

Organisms that eat both plants and animals.

Answer 4

Omnivores.

Question 5

This is the process of converting light, carbon dioxide, and water into high energy sugars and oxygen.

Answer 5

Photosynthesis

Question 6

This organelle is responsible for conducting photosynthesis.

Answer 6

Chloroplast

Question 7

These are membrane sacs filled with pigments.

Answer 7

Thylakoids

Question 8

This is a stack of thylakoids.

Answer 8

Granum (grana is plural)

Question 9

Fluid filled with water, enzymes, and organic compounds….fills the chloroplast and is the site of the Calvin Cycle.

Answer 9

Stroma

Question 10

Light absorbing molecules

Answer 10

Pigments

Question 11

This is the principle pigment in plants…its green!

Answer 11

Chlorophyll

Question 12

This is the acronym for the colors found in sunlight (white light).

Answer 12

ROY G BIV

Question 13

Plants reflect what color?

Answer 13

The color of their pigment, which for most plants is GREEN!

Question 14

What two substances do plants take in during the Light Dependent Reaction?

Answer 14

Light and water

Question 15

Light is used in photosystem II to…

Answer 15

Excite the electrons (increase their energy)

Question 16

Water is broken down in photosystem II into:

Answer 16

Electrons, oxygen, and H+ ions.

Question 17

The electrons lost by water are used to…

Answer 17

Replace chlorophyll’s electrons.

Question 18

The oxygen formed is given off as

Answer 18

Waste

Question 19

The H+ ions are used in

Answer 19

Photosystem I to make NADPH

Question 20

The electron transport chain that follows photosystem II will make:

Answer 20

ATP

Question 21

In photosystem I, light is used to:

Answer 21

Re-energize the electrons from photosystem II

Question 22

The electron transport chain that follows photosystem I will make:

Answer 22

NADPH

Question 23

Carbon dioxide enters the leaves through these stuctures….they kind of look like mouths.

Answer 23

Stomata

Question 24

In the Calvin cycle, carbon dioxide will bind with this substance… It’s in the stroma.

Answer 24

RuBP

Question 25

This enzyme is responsible for binding carbon dioxide to RuBP:

Answer 25

RUBISCO

Question 26

After carbon dioxide and RuBP bind, they form:

Answer 26

P-GAL (phosphoglycerldehyde)

Question 27

Using ATP and NADPH, P-GAL is converted into:

Answer 27

Glucose

Question 28

ATP is also used in the Calvin cycle to:

Answer 28

Convert the remaining carbon compounds into RuBP.

Question 29

The purpose of the Calvin cycle is to make:

Answer 29

Glucose (food)!

Question 30

This factor affects photosynthesis by determining if the plant/organism will have enough energy.

Answer 30

Light intensity (number of hours of light)

Question 31

This factor affects photosynthesis in that without enough of this substance…it would be hard to make glucose!

Answer 31

Carbon dioxide

Question 32

This factor affects photosynthesis in two ways…

1. It keeps the organism healthy
2. It is a source of electrons

Answer 32

Water

Question 33

This factor affects photosynthesis in that if its not ideal, then enzymes will struggle to function.

Answer 33

Temperature

Question 34

This alternate form of photosynthesis is great in hot, tropical climates because it uses a 4-carbon compound to speed up the Calvin cycle.

Answer 34

C4

Question 35

This alternate form of photosynthesis is great in hot, dry climates because the stomata will open at night to prevent water evaporation.

Answer 35

CAM

Question 36

Organisms that make their own food for energy, such as plants and some bacteria.

Answer 36

Autotrophs