Metabolism, Cell Respiration and Photosynthesis (AHL)
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Metabolism
SubtopicMetabolism under Metabolism, Cell Respiration and Photosynthesis (AHL) for Grade 11 IB.
Preview questions (no answers)
- 1.
Why is the shape of the active site so important for enzyme function?
A.It determines the enzyme's color
B.It determines which specific substrate can bind
C.It allows the enzyme to move around the cell
D.It protects the enzyme from water
- 2.
Which of the following best describes an exergonic reaction?
A.A reaction that absorbs energy
B.A reaction that releases free energy
C.A reaction that only happens in plants
D.A reaction with no activation energy
- 3.
When calculate the rate of an enzyme-controlled reaction, what is usually measured over time?
A.The change in enzyme mass
B.The disappearance of substrate or appearance of product
C.The change in the size of the beaker
D.The amount of water added
Download the worksheet for Metabolism, Cell Respiration and Photosynthesis (AHL) - Metabolism to practice offline. It includes additional chapter-level practice questions.
Cell Respiration
SubtopicCell Respiration under Metabolism, Cell Respiration and Photosynthesis (AHL) for Grade 11 IB.
Preview questions (no answers)
- 1.
Which of the following is true about the matrix of the mitochondrion?
A.It has a very low pH during respiration
B.It contains enzymes for the Krebs cycle
C.It is the site of glycolysis
D.It is the space between the two membranes
- 2.
What provides the energy to pump protons across the inner mitochondrial membrane?
A.ATP hydrolysis
B.The energy released by electrons moving through the ETC
C.The breakdown of
D.The movement of water
- 3.
Which process is an example of an endergonic step within glycolysis?
A.The oxidation of triose phosphate
B.The formation of ATP
C.The phosphorylation of glucose
D.The production of pyruvate
Download the worksheet for Metabolism, Cell Respiration and Photosynthesis (AHL) - Cell Respiration to practice offline. It includes additional chapter-level practice questions.
Photosynthesis
SubtopicPhotosynthesis under Metabolism, Cell Respiration and Photosynthesis (AHL) for Grade 11 IB.
Preview questions (no answers)
- 1.
What is the role of light energy in the light-dependent reactions?
A.To produce
B.To excite electrons in chlorophyll
C.To break down glucose
D.To fix nitrogen
- 2.
In the Calvin cycle, what happens to most of the triose phosphate (TP) produced?
A.It is converted into glucose
B.It is used to regenerate RuBP
C.It is released as a gas
D.It is used to split water
- 3.
Which molecule is a 5-carbon sugar used in the light-independent reactions?
A.Glucose
B.Glycerate-3-phosphate
C.Ribulose bisphosphate
D.Triose phosphate
Download the worksheet for Metabolism, Cell Respiration and Photosynthesis (AHL) - Photosynthesis to practice offline. It includes additional chapter-level practice questions.