M/C Q's

Question 0

Which of the following is a statement of the first law of thermodynamics?

Answer 0

Energy cannot be created or destroyed

Question 1

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones?

Answer 1

Catabolism

Question 2

Which of the following types of reactions would decrease the entropy within a cell?

Answer 2

Anabolic reactions

Question 3

Which of the following is an example of potential rather than kinetic energy?

Answer 3

A molecule of glucose

Question 4

What is the term for metabolic pathways that release stored energy by breaking down complex molecules?

Answer 4

Catabolic Pathways

Question 5

Which of the following statements describes the results of this reaction? C6H12O6 + 6O2 –> 6CO2 + 6H2O + Energy

Answer 5

C6H12O6 is oxidized and O2 is reduced

Question 6

When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the molecule becomes?

Answer 6

Oxidized

Question 7

Where does glycolysis take place in a eukaryotic cells?

Answer 7

Cytosol

Question 8

Which process in eukaryotic cells will proceed normally whether oxygen is present or absent?

Answer 8

Glycolysis

Question 9

In addition to ATP, what are the end products of glycolysis?

Answer 9

NADH and pyruvate

Question 10

Which of the following intermediary metabolites enters the citric acid cycle and is formed, in part, by the removal of a carbon from one molecule of pyruvate?

Answer 10

Acetyl CoA

Question 11

During cellular respiration, acetyl CoA accumulates in which location?

Answer 11

Mitochondrial matrix

Question 12

How many carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate?

Answer 12

2

Question 13

How many oxygen molecules are required each time a molecule of glucose is completely oxidized to carbon dioxide and water via aerobic respiration?

Answer 13

6

Question 14

Which of the following produces the most ATP when glucose is completely oxidized to carbon dioxide and water?

Answer 14

Oxidative phosphorylation

Question 15

Appox. how many molecules of ATP are produced from the complete oxidation of two molecules of glucose in aerobic cellular respiration?

Answer 15

60-64

Question 16

Photosynthesis is not responsible for?

Answer 16

Fossil fuels

Question 17

Where does the Calvin cycle take place?

Answer 17

Stroma of the chloroplast

Question 18

In any ecosystem, terrestrial or aquatic, what groups are always necessary?

Answer 18

Autotrophs

Question 19

When oxygen is released as a result of photosynthesis, it is a direct by product of?

Answer 19

Splitting water molecules

Question 20

The leaves of this plant appear reddish yellow; what wavelength of visible light are being absorbed by this pigment?

Answer 20

Blue and violet

Question 21

Halobacterium…is purple. What wavelength of light do the halobacterium photosynthetic pigments absorb?

Answer 21

Blue and red

Question 22

In a plant cell, where are the ATP synthase complexes located?

Answer 22

Thylakoid membrane and inner mitochondrial membrane

Question 23

Where are the molecules of the electron transport chain found in plant cells?

Answer 23

Thylakoid membranes of chloroplasts

Question 24

In photosynthetic cells, synthesis of ATP by the chemiosmotic mechanism occurs during?

Answer 24

both photosynthesis and respiration

Question 25

Reduction of oxygen to form water occurs during?

Answer 25

Respiration

Question 26

The reactions that produce molecular oxygen take place in?

Answer 26

Light reaction alone

Question 27

What is the primary function of the Calvin cycle?

Answer 27

Synthesize sugars from carbon dioxide

Question 28

They may proliferate and form a new tumor. The spread of cancer cells?

Answer 28

Metastasis

Question 29

This type of tissue includes cells whose genetic and cellular changes enable then to spread to new tissues and impair the functions of one or more organs...?

Answer 29

Malignant tumor

Question 30

This means "division of half," which refers to a process and to the asexual reproduction...?

Answer 30

Binary fission

Question 31

The division of the cytoplasm is called?

Answer 31

Cytokinesis

Question 32

What is the shortest phase of mitosis?

Answer 32

Anaphase

Question 33

Starting with a fertilized egg, a series of five cell divisions would produce and early embryo with how many cells?

Answer 33

32

Question 34

Which stage of mitosis is observed with the chromosome lining up in the middle?

Answer 34

Metaphase

Question 35

What is a cleavage furrow?

Answer 35

A groove in the plasma membrane