Test 2

Question 1

In 1928 Griffith demonstrated that an unidentified compound from killed cells of the bacterium causing blank could transform harmless bacteria into deadly ones

Answer 1

Pneumonia

Question 2

In 1944 Avery Macleod and McCarty treated solutions of this transforming principle with digestive enzymes and showed only those treated with blank lost their ability to transform bacteria

Answer 2

DNAase

Question 3

Hershey and Chase used sulfur to radioactively label blank because they knew it occurred in one of the blank and they used radioactive blank to label the backbone of DNA

Answer 3

Protein, amino acids, phosphate

Question 4

About the same time chargegoffs study of DNA showed that purine concentrations equals blank concentrations and Adenine concentrations equal blank

Answer 4

Pyrimidine and thymine

Question 5

RNA is usually blank

Answer 5

Single-stranded

Question 6

Hydrogen bonding between DNA bases determines how tightly strands are held together strands of DNA from G n C rich molecules separate at blank temperatures then strands of a or t rich DNA

Answer 6

Lower

Question 7

Elongation of new strands of both DNA and RNA move and what direction

Answer 7

5 to 3

Question 8

What enzyme denatures the DNA at the start of replication

Answer 8

DNA helicase

Question 9

The Meselson stall experiments demonstrated that each new DNA molecule is composed of blank strands

Answer 9

One old and one new

Question 10

What compound is the primer for DNA replication/actually begins it

Answer 10

RNA

Question 11

Short stretches of DNA synthesized along the lagging strand of the new DNA are called

Answer 11

Okazaki fragments

Question 12

A codon consist of blank bases

Answer 12

3

Question 13

Most amino acids are coded for by more than one codon so the code is

Answer 13

Redundant

Question 14

Each codon consist for only one type of amino acid so the code is not

Answer 14

Ambiguous

Question 15

Enzyme that seals nicks in a DNA backbone

Answer 15

DNA ligase

Question 16

Functional group that signifies and organic acid chemical formula COOH

Answer 16

Carboxyl

Question 17

Functional group that signifies an alcohol chemical formula OH

Answer 17

Hydroxyl

Question 18

Which is/are semi conservative

Answer 18

Replication

Question 19

Which requires a DNA template

Answer 19

Transcription and replication

Question 20

Which requires nucleotides

Answer 20

Transcription and replication

Question 21

Which uses only one strand of DNA at a time

Answer 21

Transcription

Question 22

Which occurs during interphase

Answer 22

None not transcription replication or translation

Question 23

Which synthesizes nucleotides

Answer 23

None not transcription replication or translation

Question 24

Which synthesizes proteins

Answer 24

Translation

Question 25

Most biological reactions are controlled by organic catalyst called enzymes although each has a different amino acid sequence called it's blank structure the function of these organic catalyst depend on their blank structure

Answer 25

Primary, tertiary

Question 26

Each reaction requires an input of energy called blank before it will proceed

Answer 26

Activation energy

Question 27

The general term for organic molecules that bind permanently to a protein like heme with hemoglobin is

Answer 27

Prosthetic group

Question 28

The rates of enzyme catalyzed reaction are controlled by concentrations of

Answer 28

Substrate product and Enzyme

Question 29

Which contains the code for protein

Answer 29

M RNA

Question 30

Which acts as an enzyme

Answer 30

None not M RNA tRNA or rRNA

Question 31

Which has an anti-codon

Answer 31

TRNA

Question 32

Which was produced by the golgi apparatus

Answer 32

Non-not M RNA tRNA or rRNA

Question 33

Which transfers amino acids to the ribosome

Answer 33

TRNA

Question 34

Which process does not include repair replication or transcription

Answer 34

Both include repair

Question 35

Earlier and of course we discussed glycophorin A and integral transmembrane proteins what type of our groups would probably be most common in the segment of that protein that anchors it in the membrane

Answer 35

Hydrophobic/non-polar

Question 36

What types of r groups might be involved when An enzyme alters charge on the substrate by adding or subtracting hydrogen ion

Answer 36

Acidic and basic

Question 37

Why might an enzyme deform a substrate in a chemical reaction

Answer 37

Protect a reactive site

Question 38

What types of bonds are primarily responsible for stabilizing the three-dimensional structure of an Enzyme

Answer 38

Ionic hydrogen and disulfide

Question 39

Two reasons why simply adding energy to speed up a reaction would not work in a living organism

Answer 39

It would increase metabolism to break down excess fat and it would help maintain body temperature