Lecture Exam 2

Question 1

How do fatty acids travel through the cell membrane?

Answer 1

Diffusion

Question 2

The plasma membrane is made up of

Answer 2

phospholipids, proteins, and carbohydrates

Question 3

Which of the following activities require ATP?

Answer 3

Swimming, active transport, running

Question 4

Diffusion is considered a type of

Answer 4

passive transport

Question 5

Which protein acts as a channel within cell membranes enabling molecules to enter and/or exit the cell?

Answer 5

transport proteins

Question 6

Passive transport through a biological membrane moves a substance _____ is concentration gradient.

Answer 6

with (down)

Question 7

Osmosis is the diffusion of

Answer 7

water

Question 8

A solution with a lower number of solutes than the cell is called ____

Answer 8

hypotonic

Question 9

What happens when a cell is placed into hypotonic solution?

Answer 9

Water leaves the cell.

Question 10

How are the phosphates in an ATP molecule charged?

Answer 10

negatively

Question 11

Which of the following processes can move a solute against its concentration gradient?

Answer 11

active transport

Question 12

What acts as a catalyst?

Answer 12

enzyme

Question 13

What is the process of a white blood cell engulfing a bacterium?

Answer 13

Phagocytosis

Question 14

What are enzymes a type of?

Answer 14

Protein

Question 15

What do enzymes do?

Answer 15

Speed up the rate of reaction by decreasing the energy of activation.

Question 16

What is the difference between placing a plant cell and animal cell into hypotonic solution?

Answer 16

Both cells swell, but the animal cell bursts.

Question 17

What is the energy rich molecule that is produced by the mitochondria during cellular respiration?

Answer 17

ATP

Question 18

Where does glycolysis occur?

Answer 18

The cytoplasm

Question 19

What are the products of cellular respiration?

Answer 19

ATP, water, and carbon dioxide

Question 20

Glycose begins with _____ and ends with ______.

Answer 20

Glucose; two pyruvate molecules.

Question 21

What does anaerobic mean?

Answer 21

without oxygen

Question 22

Which stages of cellular respiration produces FASH2

Answer 22

citric acid cycle

Question 23

The citric acid cycles, also known as the Krebs cycle produces ____ for one glucose molecule.

Answer 23

2 ATP

Question 24

During anaerobic fermentation, pyruvate molecules at the end of glycolysis are converted into ____

Answer 24

lactic acid

Question 25

Where do pyruvate molecules move to after glycolysis?

Answer 25

mitochondria

Question 26

Pinocytosis is a type of endocytosis

Answer 26

true

Question 27

The citric acid cycle produces ____ as a waste product which is exhaled from your lungs.

Answer 27

carbon dioxide

Question 28

How many NET ATPs are produced during glycolysis?

Answer 28

2 ATP

Question 29

What is the final acceptor of electrons in the electron transport chain?

Answer 29

oxygen

Question 30

The citric acid cycle occurs in the

Answer 30

mitochondria

Question 31

The electron transport chain occurs in the ____.

Answer 31

mitochondrial

Question 32

The oxygen gas produced by plants during photosynthesis comes from the splitting of _____

Answer 32

water

Question 33

Glucose is produced in which reaction of photosynthesis?

Answer 33

Light independent (calvin cycle)

Question 34

The calvin cycle occurs in the _____

Answer 34

stroma of the chloroplast

Question 35

The energy in a molecule of ADP is greater than the energy in a molecule of ATP.

Answer 35

False

Question 36

Where are chloroplast photosystems found?

Answer 36

The thylakoid membrane of chloroplasts.

Question 37

The light dependent reactions produce _____

Answer 37

glucose

Question 38

Which of the following group of organisms DO NOT photosynthesize?

Answer 38

fungi

Question 39

Photosynthesis occurs in the chloroplast and cellular respiration occurs in the mitochondria.

Answer 39

true

Question 40

Oxidation is the ______, and reduction is the ______.

Answer 40

loss of electrons; gain of electrons

Question 41

A packet of light energy is called

Answer 41

a photon

Question 42

Active transport allows for the cell to have an internal chemical composition that is different than its surroundings.

Answer 42

true

Question 43

All living organisms perform the process of cellular respiration.

Answer 43

true

Question 44

Plants are green because their pigments absorb green light wavelengths.

Answer 44

true

Question 45

During photosynthesis, a photon of light is used by a plant to split a molecule of glucose into carbon dioxide.

Answer 45

false.

Question 46

Molecules of water serve as the source of hydrogen atoms for synthesizing glucose into carbon dioxide.

Answer 46

false

Question 47

Glycolysis occurs in both aerobic and anaerobic states.

Answer 47

true

Question 48

Passive transport causes molecules to flow from an area of high concentration to an area of low concentration.

Answer 48

true

Question 49

Enzymes slow down chemical reactions.

Answer 49

false

Question 50

Electron transport chain is an aerobic process.

Answer 50

true

Question 51

Most of the ATP produced during cellular respiration occurs in the mitochondrial matrix.

Answer 51

false

Question 52

The active site of an enzyme allows it to interact with a chemical substance.

Answer 52

true

Question 53

Plants use 2 different photosystems to capture sunlight during photosynthesis.

Answer 53

true

Question 54

Photosynthetic organisms d not respire.

Answer 54

false

Question 55

Which stage of cellular respiration produces FADH2?

Answer 55

Citric acid cycle