Lecture 6 & 7: Photosynthesis and Respiration

Question 1

In photosynthesis, what are the two reactants?

Answer 1

Carbon Dioxide and Water

Question 2

In cellular respiration, what are the two reactants?

Answer 2

Glucose and Oxygen

Question 3

Photosynthesis is an ____ reaction.

Answer 3

Endergonic / Anabolic

Question 4

Cellular respiration is an ____ reaction.

Answer 4

Exergonic / Catabolic

Question 5

What is the “goal” of photosynthesis?

Answer 5

To convert sunlight energy into chemical energy

Question 6

The light ____ reactions grab sunlight.

Answer 6

Dependent

Question 7

The light ____ reactions make the sugar.

Answer 7

Independent

Question 8

Where are light photons captured?

Answer 8

The thylakoid membrane of the chloroplast

Question 9

Where are the sugars made?

Answer 9

The stroma of the chloroplast

Question 10

What molecule is the main source of energy for the cell, and is made in both photosynthesis and respiration?

Answer 10

ATP

Question 11

In light-dependent reactions, the sunlight splits the ____ molecule to provide electrons.

Answer 11

H2O

Question 12

In the light dependent reactions, the molecule ____ ultimately captures the electrons.

Answer 12

NADPH

Question 13

The light independent reactions are also called the ____ cycle.

Answer 13

Calvin

Question 14

The light-independent reactions convert the ____ molecule into sugar.

Answer 14

CO2

Question 15

Where in these cells does photosynthesis take place?

Answer 15

Chloroplasts

Question 16

In all eukaryotic cells, where is sugar split during glycolysis?

Answer 16

Cytoplasm

Question 17

What occurs in the thylakoid?

Answer 17

Light is captured, and converted into ATP and oxygen.

Question 18

What occurs in the stroma?

Answer 18

CO2 is converted to sugars, by using ATP

Question 19

What happens in light-dependent reactions?

Answer 19

Sunlight hits the reaction center. Accessory pigment captures excess sunlight and directs it toward the reaction center to increase activity. Electrons are then excited by sunlight and then captured by an acceptor protein. These electrons then lose their potential energy and release ATP.

Question 20

When the inner membrane of mitochondria folds upon itself to provide surface area, this is called ____.

Answer 20

Cristae

Question 21

Where does the Citric Acid Cycle (Krebs Cycle) take place?

Answer 21

The matrix of the mitochondria

Question 22

Where does a majority of ATP made in mitochondria?

Answer 22

The inner membrane of mitochondria

Question 23

How many carbon atoms does glucose have?

Answer 23

Six

Question 24

Where in the cell does glycolysis take place?

Answer 24

Cytoplasm

Question 25

Glucose converts sugar into two ___ molecules.

Answer 25

Pyruvate

Question 26

How many carbons does pyruvate have?

Answer 26

Three

Question 27

Each pyruvate is converted into a(n) ____ molecule.

Answer 27

Acetyl CoA

Question 28

How many carbons does Acetyl CoA have?

Answer 28

Two

Question 29

Acetyl CoA goes into the ____ to be completely broken down.

Answer 29

Citric Acid Cycle (Krebs Cycle)

Question 30

How many ATP molecules does the Citric Acid (Krebs) cycle make per turn?

Answer 30

One

Question 31

How many NADH molecules does the Citric acid cycle make per turn?

Answer 31

Three

Question 32

How many turns does it take for the Citric Acid cycle to completely break down glucose?

Answer 32

Two