Download GCE Science TRP

EDEXCEL
1
Biology B
Teacher Resource Pack 1
Assessment 2B
Which term describes the synthesis of polypeptide?
A
transcription
B
translocation
C
transpiration
D
translation
Your answer
(1)
(Total for Question 1 = 1 mark)
2
The diagram below represents stages in the replication of a molecule of DNA.
(a) Identify the chemical bonds labelled X.
(1)
............................................................................................................................................
(b) Name the enzyme that catalyses the breaking of bond X.
(1)
............................................................................................................................................
© Pearson Education Ltd 2015
This document may have been altered from the original
1
EDEXCEL
Biology B
Teacher Resource Pack 1
Assessment 2B
(c) Complete the sequence of bases of the daughter strands A and B of the
DNA forming against parent strands.
(2)
............................................................................................................................................
............................................................................................................................................
(Total for Question 2 = 4 marks)
3
(a) Which term best describes a sequence of more than two and less than 20
amino acids joined together?
A
peptide
B
dipeptide
C
protein
D
polypeptide
Your answer
(1)
(b) What type of reaction joins together a sequence of amino acids?
(1)
............................................................................................................................................
(c) Which phrase best describes the tertiary structure of a molecule of protein?
A
consists of more than one polypeptide chain
B
is the sequence of amino acids
C
consists of α helices and β pleated sheets
D
is produced by the folding of a polypeptide chain
Your answer
(1)
(d) DNA replicates during which stage of the cell cycle?
A
anaphase
B
S-phase
C
G1-phase
D
telophase
Your answer
(1)
(Total for Question 3 = 4 marks)
© Pearson Education Ltd 2015
This document may have been altered from the original
2
EDEXCEL
4
Biology B
Teacher Resource Pack 1
Assessment 2B
A parent cell divides into two daughter cells following mitosis.
(a) Name the process of cell division.
(1)
............................................................................................................................................
(b) Describe the process of cell division of a plant cell.
(3)
............................................................................................................................................
............................................................................................................................................
............................................................................................................................................
(c) How is the division of a plant cell different from the division of an animal
cell?
(2)
............................................................................................................................................
............................................................................................................................................
(d) Explain why the division of a plant cell is different from the division of an
animal cell.
(2)
............................................................................................................................................
............................................................................................................................................
(Total for Question 4 = 8 marks)
5
Diploid human cells carry 46 chromosomes. Write in each box the correct
number of chromosomes for each type of human cell listed.
white blood cell
red blood cell
egg cell
(3)
(Total for Question 5 = 3 marks)
TOTAL FOR ASSESSMENT = 20 MARKS
© Pearson Education Ltd 2015
This document may have been altered from the original
3