Curriculum
Course: Cambridge AS & A Level Biology 9700 ...
Login

Curriculum

Cambridge AS & A Level Biology 9700 — Revision Notes

1 · Cell Structure

0/26

2 · Biological Molecules

0/51

3 · Enzymes

0/29

4 · Cell Membranes and Transport

0/41

5 · The Mitotic Cell Cycle

0/21

6 · Nucleic Acids and Protein Synthesis

0/22

7 · Transport in Plants

0/28

8 · Transport in Mammals

0/39

9 · Gas Exchange

0/13

10-11 · Infectious Disease and Immunity

0/43

12 · Energy and Respiration

0/37

13 · Photosynthesis

0/23

14-15 · Homeostasis and Control

0/57

16 · Inherited Change

0/34

17-18 · Selection, Evolution, Classification and Conservation

0/69

19 · Genetic Technology

0/44
Quiz

12.2.11 Aerobic Respiration- Effect of Temperature and Substrate Concentration – Exam questions

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 6
  • Passing grade: B+
Start Quiz
1.
At high substrate concentrations, rate plateaus because
the enzyme is denatured
the substrate is used up
all active sites are occupied
inhibitors form
2.
Rate at different substrate concentrations is shown. Why does the rate level off above 4%?
The enzyme has denatured
The substrate has become the enzyme
All active sites are occupied — the enzyme is saturated
Temperature has fallen
3.
Why should enzyme and substrate be brought to the test temperature before mixing?
To denature the enzyme
So the reaction runs at the intended temperature from the start
To use up the substrate
To increase activation energy
4.
IGCSE Biology 12.3 Aerobic respiration, SEED GERMINATION - Question 7
IGCSE Biology 12.3 Aerobic respiration, SEED GERMINATION - Question 7
A
B
C
D
5.
IGCSE Biology 12.3 Aerobic respiration, SEED GERMINATION - Question 12
IGCSE Biology 12.3 Aerobic respiration, SEED GERMINATION - Question 12
A
B
C
D
6.
In a respirometer, soda lime is used to:
Absorb oxygen
Absorb carbon dioxide
Provide glucose
Kill microorganisms
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Part of 12 · Energy and Respiration — see every lesson and quiz in this unit.
Accepted payment methods