Chapter 4 Quiz

Front 1

A metabolic pathway consists of enzyme-controlled reactions leading to the formation of a product.

Back 1

True

Front 2

Which of the following results in the greatest amount of ATP?

Back 2

electron transport

Front 3

Before entering the Kreb cycle, pyruvic acid must be converted to a/an _______ molecule.

Back 3

acetyl coenzyme A

Front 4

Which of the following is an example of a catabolic reaction?

Back 4

hydrolysis of proteins

Front 5

What is the collective term for all of the chemical processed occuring within a cell?

Back 5

metabolism

Front 6

One strand of DNA is connected to the other by the _____

Back 6

nitrogen bases

Front 7

Respiration yields ______ as a gaseous waste porduct.

Back 7

carbon dioxide

Front 8

The genetic code is transferred from DNA to

Back 8

mRNA

Front 9

An ATP molecule consists of an adenine, a ribose, and five phosphates.

Back 9

false

Front 10

Which vitamin is essential to the formation of acetyl coenzyme A?

Back 10

pantothentic acid

Front 11

The following are end products fo the Kreb cycle except which one?

Back 11

citric acid

Front 12

Some of the reactions within a mitochondrion do not require oxygen in order to proceed.

Back 12

False

Front 13

Most reactions that produce energy in a cell utilize _____ as the main reaction type.

Back 13

oxidation

Front 14

What is the anticodon for DNA base sequence QTG?

Back 14

AUG

Front 15

Which statement is not true about catabolic processes?

Back 15

Dehydration synthesis is involved in catabolic processes

Front 16

Which of the following is an example fo catabolism?

Back 16

hydrolysis

Front 17

Which of the following wil catalyze the breakdown of starches?

Back 17

amylase

Front 18

The following terms belong together except which one?

Back 18

glucose

Front 19

The molecule that is acted upon by an enzyme is a

Back 19

substrate

Front 20

Of the following, the molecule with the greatest amount of usable cell energy is

Back 20

ATP

Front 21

The following are true of glucolysis except which statement?

Back 21

requires oxygen

Front 22

The chemical process of ______ is involved in the digestion of a compound such as a disaccharide.

Back 22

hydrolysis

Front 23

The potentially harmful chemicals resulting from lipid metabolism are the

Back 23

ketones

Front 24

The following factors will decrease the function of most enzymes except with one?

Back 24

ph of 7.4

Front 25

Enzymes function in chemical reactions to

Back 25

lower energy of activation needed to start the reaction

Front 26

A genetic code is a sequence of

Back 26

three bases

Front 27

A set of nucleotides called the ______ in RNA recognizes the neclueotide genetec codes of DNA.

Back 27

codon

Front 28

Which of these is an enzyme name?

Back 28

lipase

Front 29

Carbohydrates in the diet are changed into glucose by a process of

Back 29

hydrolysis

Front 30

The following are DNA bases except which one?

Back 30

uracil

Front 31

Ketones are molecules that result from ___ metabolism.

Back 31

fat

Front 32

Which of these is the last to be produced in glycolysis?

Back 32

phosphoenolpyruvic acid

Front 33

Which of the following factors would increase the rate of a reaction the most?

Back 33

enzymes

Front 34

The metabolically most active organ in the body probably is the _____

Back 34

liver

Front 35

What is oxidized during oxidative phosphorylation?

Back 35

hydrogen

Front 36

The fundamental units found in DNA, RNA, and ATP are

Back 36

nucleotides

Front 37

The ___ of a cell is the most critical factor in determining its function?

Back 37

shape

Front 38

The ____ of the cell directs its overall activities as well as house it genetic mateial.

Back 38

nucleus

Front 39

Which feature is not a characteristic of the cell membrane?

Back 39

It is made up of a phospholipid monolayer

Front 40

Molecules that are soluable _____ can pass through the fatty acid portion of the cell membrane unassisted.

Back 40

lipids