Topic Human Cells Worksheet
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20Human Biology Higher Homework: Topic Human Cells
Sub-topic3: Cell Metabolism
5.
The diagram below shows energy transfer
1.
During which of the following chemical conversions is
within a cell.
A T P produced?
Compound X
+
Amino acids protein
A
energy
energy
phosphate
Glucose pyruvic acid
B
Cellular
Processe
Haemoglobin oxyhaemoglobin
C
s
Nucleotides mRNA
D
Compound Y
2.
The following statements relate to respiration and the
Which line in the table below identified
mitochondrion.
correctly compounds X and Y?
1
Glycolysis takes place in the mitochondrion.
X
Y
2
The mitochondrion has two membranes.
A
glucose
ATP
3
The rate of respiration is affected by temperature.
B
glucose
ADP
C
ADP
ATP
Which of the above statements are correct?
D
ATP
glucose
A. 1 and 2
B. 1 and 3
6.
The following chart shows stages in the
C. 2 and 3
complete breakdown of glucose in aerobic
D. All of them
respiration.
3.
The anaerobic breakdown of glucose splits from the
Glucose
aerobic pathway of respiration.
Stage X
A. after the formation of pyruvic acid
B. after the formation of acetyl CoA
Pyruvic acid
C. after the formation of citric acid
Stage Y
D. at the start of glycolysis.
Krebs cycle
Stage Z
4.
In respiration, the products of the cytochrome system
are
At which stage or stages is hydrogen released to be
picked up by hydrogen acceptors?
A. hydrogen and carbon dioxide
A. Stages X, Y and Z
B. water and ATP
B. Stages X and Y only
C. Stages Y and Z only
C. oxygen and ADP
D. Stage Z only
D. pyruvic acid and water.
1
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