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WorksheetsBiology Chapter 7
Total questions: 27
Worksheet time: 21mins
Which of the following is the main substrate of cellular respiration?
Oxygen
Carbon Dioxide
Glucose
Glucose and Oxygen
Glycolysis is responsible for breaking glucose down into what?
CO2
H2O
Acetyl CoA
2 Pyruvic Acids
True or False: This is the cellular respiration equation:
C6H12O6 + O2 ------> CO2 + H2O
True
False
Which of the following is NOT a product of cellular respiration?
Water
Carbon Dioxide
Energy in the form of ATP
Glucose
In each phase of cellular respiration there is a certain amount of chemical energy harvested in the form of ATP. On a perfect day, with everything running at 100% efficiency, how many molecules of ATP can we harvest from 1 molecule of glucose?
38
23
4
2
When an organism is in a low oxygen situation, such as running sprints, cellular respiration ceases and the organism must use a different metabolic pathway for creating energy without oxygen. What do we call this process?
Acidification
Hydrolysis
Fermentation
Citric Acid Cycle
Where do the reactions of cellular respiration occur?
Thylakoid & Stroma
Cytoplasm & Mitochondria
Mitochondria only
None of these
What is the substrate that can produce energy other than glucose?
Amino acid
Protein
Galactose
Lipid
Which of the following is a similarity between aerobic and fermentation in human muscle?
Oxygen used
Energy is released
Lactic acid produced
Carbon dioxide is produced
why energy is required in metabolic processes?
I To maintain body temperature at the optimum
temperature of 37°C. II For division as well as growth and development of
cells.
III Contraction of muscles during movement
IV Transmitting nerves impulse
I, II and III
II, III and IV
I, II and III
I, II , III and IV
Aerobic respiration is the breaking down of…………………in the presence of……………
(a)
Diagram shows the germination of maize seed. Which of the following equation is correct for the respiration process that takes place in seed?
Glucose→ Lactic acid + energy
Glucose→ Carbon dioxide + ethanol + energy
Glucose + Oxygen → Carbon dioxide + ethanol + energy
Glucose + Oxygen→Carbon dioxide+ water + energy
Which process involves aerobic respiration?
Fermentation by yeast
Initial stage of seed germination
Contraction of heart muscles when a person is at rest
Growth of paddy plants under waterlogged condition
In an experiment of fermentation.
Which of following mixtures can increase the rate of respiration of yeast?
A 1 g yeast and 25ml of 5%.glucose solution
B 1 g yeast and 25ml of 7% glucose solution
C 1 g yeast and 25ml of 10% glucose solution
D 1 g yeast and 25ml of 15% glucose solution
A
B
C
D
A student takes part in a 200m sprint event. Which equation represents his respiration process after he has run the first 100 m?
A Glucose→Lactic acid + energy
B Glucose + Oxygen→ Lactic acid and energy
C Glucose → Ethanol + Carbon dioxide + water+ energy
D Glucose + Oxygen → Carbon dioxide + water+ energy
A
B
C
D
What happens in the MUSCLE tissues during vigorous activity?
A Glucose molecules break down partially into ethanol
B Glucose molecules break down partially into lactic acid C Glucose molecules break down to produce Carbon dioxide
D Glucose molecules break down to produce 2898kJ of energy
A
B
C
D
Name the the condition when the muscle producing energy in an oxygen deficiency state.
(a)
When fatigue and muscle cramps can be release?
When all the (a) ..has been breakdown , the oxygen debt is repaid.
How much energy is released through fermentation in muscle and yeast?
150 KJ, 210 KJ
210 KJ, 150KJ
120 KJ, 240 KJ
240 KJ, 120 KJ
Where oxidation of lactic acid take place?
Liver
Stomach
small intestine
bladder
