ocr biology
Oxford Cambridge and RSA
AS Level Biology A
H020/01 Breadth in biology
Sample Question Paper
Date – Morning/Afternoon Version 2.0
Time allowed: 1 hour 30 minutes
You may use:
• a scientific or graphical calculator
**
EN * 0 0 0 0 0 0 *
IM
First name
EC
Last name
Centre Candidate
number number
SP
INSTRUCTIONS
• Use black ink. You may use an HB pencil for graphs and diagrams.
• Complete the boxes above with your name, centre number and candidate number.
• Answer all the questions.
• Where appropriate, your answers should be supported with working. Marks may
be given for a correct method even if the answer is incorrect.
• Write your answer to each question in the space provided.
• Additional paper may be used if required but you must clearly show your candidate
number, centre number and question number(s).
• Do not write in the bar codes.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document consists of 24 pages.
© OCR 2016
[601/4261/3] DC (…) H020/01 Turn over
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Answer all the questions.
1 Young mammals receive antibodies in their mother’s milk.
This is an example of which type of immunity?
A artificial active immunity
B artificial passive immunity
C natural active immunity
D natural passive immunity
2
Your answer
Which of the following descriptions is correct?
EN [1]
IM
A Vaccination gives long-term protection, immunisation gives short-term protection.
B Vaccination involves injection of antigenic material and immunisation is the process of
EC
developing immunity.
C Vaccination involves injection of antigenic material, immunisation is injection of antibodies.
D Vaccination and immunisation have the same meaning.
SP
Your answer [1]
3 When you listen to a human heartbeat through a stethoscope you can hear a two stage ‘lub–dub’
sound.
Which of the following causes the first ‘lub’ component?
A closing of the atrioventricular valves
B sound of blood rushing into the atria
C sound of blood rushing into the ventricles
D closing of semilunar valves
Your answer [1]
© OCR 2016 H020/01
, 3
4 Zinc ions are necessary for the enzyme carbonic anhydrase to work.
Which statement correctly describes the nature and function of zinc ions in their interaction with
carbonic anhydrase?
A inorganic ions and coenzymes
B vitamins and prosthetic groups
C inorganic ions and prosthetic groups
D vitamins and coenzymes
Your answer [1]
5 Using the light micrograph below and the formula
4
3
r 3 what is the volume of a neutrophil?
EN
IM
EC
SP
A 2 µm3
B 20 µm3
C 200 µm3
D 2000 µm3
Your answer [1]
© OCR 2016 H020/01 Turn over
, 4
6 Three types of microscope are listed below.
Select the row that shows the correct use for each type of microscope.
Type of microscope and what it is used to observe
Light microscope Transmission Laser scanning
electron microscope confocal microscope
an object at a certain
A cell surfaces organelles
depth within a cell
an object at a certain whole cells and
B cell surfaces
depth within a cell tissues
whole cells and
C organelles cell surfaces
tissues
EN
whole cells and an object at a certain
D organelles
tissues depth within a cell
IM
Your answer [1]
7 Cyanobacteria are photoautotrophs and fossil records confirm their existence 3.5 billion years ago.
Which row describes the structure of cyanobacteria?
EC
Feature
Nucleus Circular DNA Mitochondria Ribosomes Chloroplast Cell wall
A
SP
B
C
D
Your answer [1]
8 Fig. 8.1 shows an animal cell.
© OCR 2016 H020/01
Oxford Cambridge and RSA
AS Level Biology A
H020/01 Breadth in biology
Sample Question Paper
Date – Morning/Afternoon Version 2.0
Time allowed: 1 hour 30 minutes
You may use:
• a scientific or graphical calculator
**
EN * 0 0 0 0 0 0 *
IM
First name
EC
Last name
Centre Candidate
number number
SP
INSTRUCTIONS
• Use black ink. You may use an HB pencil for graphs and diagrams.
• Complete the boxes above with your name, centre number and candidate number.
• Answer all the questions.
• Where appropriate, your answers should be supported with working. Marks may
be given for a correct method even if the answer is incorrect.
• Write your answer to each question in the space provided.
• Additional paper may be used if required but you must clearly show your candidate
number, centre number and question number(s).
• Do not write in the bar codes.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document consists of 24 pages.
© OCR 2016
[601/4261/3] DC (…) H020/01 Turn over
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Answer all the questions.
1 Young mammals receive antibodies in their mother’s milk.
This is an example of which type of immunity?
A artificial active immunity
B artificial passive immunity
C natural active immunity
D natural passive immunity
2
Your answer
Which of the following descriptions is correct?
EN [1]
IM
A Vaccination gives long-term protection, immunisation gives short-term protection.
B Vaccination involves injection of antigenic material and immunisation is the process of
EC
developing immunity.
C Vaccination involves injection of antigenic material, immunisation is injection of antibodies.
D Vaccination and immunisation have the same meaning.
SP
Your answer [1]
3 When you listen to a human heartbeat through a stethoscope you can hear a two stage ‘lub–dub’
sound.
Which of the following causes the first ‘lub’ component?
A closing of the atrioventricular valves
B sound of blood rushing into the atria
C sound of blood rushing into the ventricles
D closing of semilunar valves
Your answer [1]
© OCR 2016 H020/01
, 3
4 Zinc ions are necessary for the enzyme carbonic anhydrase to work.
Which statement correctly describes the nature and function of zinc ions in their interaction with
carbonic anhydrase?
A inorganic ions and coenzymes
B vitamins and prosthetic groups
C inorganic ions and prosthetic groups
D vitamins and coenzymes
Your answer [1]
5 Using the light micrograph below and the formula
4
3
r 3 what is the volume of a neutrophil?
EN
IM
EC
SP
A 2 µm3
B 20 µm3
C 200 µm3
D 2000 µm3
Your answer [1]
© OCR 2016 H020/01 Turn over
, 4
6 Three types of microscope are listed below.
Select the row that shows the correct use for each type of microscope.
Type of microscope and what it is used to observe
Light microscope Transmission Laser scanning
electron microscope confocal microscope
an object at a certain
A cell surfaces organelles
depth within a cell
an object at a certain whole cells and
B cell surfaces
depth within a cell tissues
whole cells and
C organelles cell surfaces
tissues
EN
whole cells and an object at a certain
D organelles
tissues depth within a cell
IM
Your answer [1]
7 Cyanobacteria are photoautotrophs and fossil records confirm their existence 3.5 billion years ago.
Which row describes the structure of cyanobacteria?
EC
Feature
Nucleus Circular DNA Mitochondria Ribosomes Chloroplast Cell wall
A
SP
B
C
D
Your answer [1]
8 Fig. 8.1 shows an animal cell.
© OCR 2016 H020/01
