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Y12 Unit 1 review b cloned 11/6/2022

Last updated 3 months ago

35 questions

1

1

1

1

1

1

1

1

1

Question 4

4.

1

1

1

Question 7

7.

The genetic codes TAA, TAG and TGA are stop codons.
(a) State the sequence of the first four amino acids coded for by this length of DNA.

1

1

1

Question 11

11.

1

1

1

1

1

1

Question 18

18.

Question 19

19.

1

1

1

Question 23

23.

1

1

1

1

1

1

1

1

Question 31

31.

1

1

1

Question 35

35.

Question 1

1.

Question 2

2.

Question 3

3.

Question 5

5.

Question 6

6.

Question 8

8.

A change in a single base can cause a change in the amino acid sequence produced in protein synthesis. Name tye type of mutation - Base number 3 becomes cytosine (C)

Question 9

9.

A change in a single base can cause a change in the amino acid sequence produced in protein synthesis. Name tye type of mutation - Base number 6 becomes number 5 in the sequence

Question 10

10.

A change in a single base can cause a change in the amino acid sequence produced in protein synthesis. Name tye type of mutation -Base number 9 becomes number 10 in the sequence

Pectinase is an enzyme that breaks down pectin. Pectin is present in the cell walls of fruits.
What type of molecule is pectinase?

disaccharide

polysaccharide

protein

triglyceride

Question 12

12.

Question 13

13.

Question 14

14.

Question 15

15.

Question 16

16.

Question 17

17.

Which are the products of lactose digestion?

Fructose and galactose

Fructose and glucose

Galactose and glucose

Glucose and glucose

What type of chemical reaction is involved in breaking a lactose molecule into two monosaccharides?

Condensation

Esterification

Hydrogen bonding

Hydrolysis

Question 20

20.

Question 21

21.

Question 22

22.

Which type of bond joins two monosaccharides together to form a disaccharide?

Ester

Glycosidic

Peptide

Phosphodiester

Question 24

24.

Question 25

25.

Question 26

26.

Question 27

27.

Question 28

28.

Question 29

29.

Question 30

30.

Question 32

32.

Question 33

33.

Question 34

34.

Which type of treatment is warfarin?

Anticoagulant

Antihypertensive

Platlet inhibitor 

Statin

Which part would contain the statement: uses proteins?

II

III

IV

VII

Which part would contain the statement: needs energy in the form of ATP?

II

V

VI

VII

Which part would contain the statement: solutes can only move down a concentration gradient?

II

III

V

VII

Using the image from Q4, which row of the table identifies the bonds labelled S, T and U?

A

B

C

D

The base labelled P is adenine.
Which is the base labelled Q?

Cytosine

Guanine

Thymine

Uracil

Which is the correct statement about the formation of glycogen?

A

B

C

D

Which formula is correct for a monosaccharide?

A

B

C

D

Which of the following is a medication to control blood pressure?

A

B

C

D

Which diagram shows the sequence of events for the hydrolysis of lactose?

A

B

C

D

Which of the following are the monosaccharides present in lactose?

A

B

C

D

Which row in the table describes line P and identifies the letter that shows the decrease in activation energy due to lactase?

A

B

C

D

What is a mutation?

A

B

C

D

Which glycosidic bonds are responsible for the branching in glucomannan?

A

B

C

D

Which row of the table shows which of these sugars are monosaccharides and
which are disaccharides?

A

B

C

D

How many are the statements are correct for starch in living cells?

A

B

C

D

What is the unit?

A

B

C

D

Which structures contain a phosphate group?

Q and R

Q and T

R and S

S and T

Which ratio of the structures affects the fluidity of this membrane?

Q:T

R:Q

R:T

S:T

What is the name of the blood vessel labelled G?

A

B

C

D

Which row of the table identifies the stages before and after stage F?

A

B

C

D

Which sugar is present in uridine monophosphate?

A

B

C

D

Using the image from question 31, which of the following diagrams shows the R group only of AzPhe?

A

B

C

D

What is the ratio of glycerol to fatty acid in a triglyceride molecule? 

A

B

C

D

Which diagram shows the bond that joins a glycerol molecule to a fatty acid in a triglyceride?

A

B

C

D