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AEROBIC RESPIRATION
1-Which of the following is not produced during absence of the O2?
a) Glucose phosphate b) pruvate c) phosphoenol pruvate d) Succinic acid e) lactic acid
2-Which of the following is not common properties of aerobic respiration and alacoholic fermentation ?
a)Formation of pruvate
b)formation of CO2
c)Synthesis of ATP
d) Activation of enzymes
e) Formation of water
3- Which of the following is the aim of cellular respiration?
a)To balance the concentration of gases in atmosphere
b)Conversion of light energy to chemichal energy
c)Energy supply to chemichal reaction
d)Conversion of inorganic molecules to organic molecules
e)To balance body temperature of organisms
4- Which of the following is produced during glycolysis and enter the mitochondria?
a) 2H b) Fructose diphosphate c) Glycerol
d) Oxaloacetic acid e) Glucose
5-In aerobic respiration
I. ADP + Pi ATP II. Pruvate Ac CoA
III. e uptake of oxygen IV. PGA Pruvate
In which of the above reactions are NAD reduced ?
a) I b) III c) I-III d) II-IV e) III-IV
6-I. Krebs cycle II. Glycolysis III. Photosynthesis
Which of the above reactions begin with glucose?
a) I b) II c) III d) I-III e) II-III
7-Which of the following best describes the energy carrier capacity
a)Cytochromes-FAD-NAD-O2
b)FAD-NAD-Cytochromes-O2
c)NAD-Cytochromes-O2-FAD
d)Cytochromes-NAD-FAD-O2
e)NAD-FAD-Cytochromes-O2
8- In aerobic respiration the final electron acceptor is
a) Chlorophyl b) CO2 c) Water
d) FAD e) Oxygen
9- Which one is not produce in Krebs cycle?
a) NADH2 b) FADH2 c) ATP d) O2 e) CO2
10-Which of the following is false for respiration?
a) It occurs in all living things
b) Produced CO2 and water
c)An exothrermic reaction
d)An endothermic reaction
e)Release energy from carbohydrates
11- In aerobic respiration AcCoA is formed from
a) PGA b) PGAL c) Pruvate
d) Di PGA e) Glucose
12-How many ATP are produced from 30 C fatty acid in respiration?
a) 180 b) 60 c) 100 d) 120 e) 80
13-How many CO2 molecules are produced from 5 molecules glucose in aerobic respiration ?
a) 6 b) 12 c) 30 d) 15 e) 5
14-ETS of aerobic respiration occurs in
a) Mitochondria b)Grana c)Crista d)Matrix e)Stroma
15-In glycolysis the glucose must be activited. How many ATP are used in this process?
a) 1 b)2 c)3 d)4 e)5
16-How oxygen is used by a plant cell ?
a) Respiration
b) Fermentation
c) Photosynthesis
d)Protein synthesis
e) All of them
17- I- PGAL Pyruvate II- Pyruvate Acetyl CoA . III- ADP + P ATP
In which of the above reaction does the NADH2 reduced ?
a) I b) II c) III d) I II e) II - III
18-All living things get energy by a process called
a) Respiration
b) Fermentation
c) Photosynthesis
d) Krebs cycle
e) Active transport
19- I- Photosynthesis II- Aerobic respiration
III- Anaerobic respiration
In which life processes is ATP produced ?
a) I b) II c) I II d) II III e) I II III
20- What is common property between photosynthesis and respiration ?
a) Oxygen is released
b) Water is splitted
c) Water is formed
d) ETS takes role
e) Light is absorbed
21- Which process produces the greatest number of ATP molecules ?
a) Krebs cycle b) Glycolysis c) Hydrolysis
d) Anaerobic respiration e) E.T.S
22- In animal cells, where does the energy to convert ADP to ATP come from ?
a) Sunlight
b) Organic molecules
c) Enzymes
d)Inorganic molecules
e) CO2
23- I- Glycolysis II- Anaerobic respiration
III- Aerobic respiration
Which of the above take place in cytoplasm ?
a) I b) II c) I III d) I II e) I II III
24- I. Glycolysis II- Oxidative Phosphorylation
III-Chemosynthesis IV-Photosynthesis
Which of the metabolic reactions listed above produces oxygen which is then utilized by the cell?
A) I and II B) II and III C) III and IV
D) II and IV E) I and IV
25-The list shown below shows different methods of ATP production in cells.
I. Glycolysis II. Photosynthesis III. Aerobic respiration
Which of the following combinations describes the correct energy source of the reactions listed above?
___I___ ____II____ ___III____
A) light chemical heat
B) chemical light heat
C) chemical light chemical
D) mechanical heat light
heat light heat
26-How many carbon atoms are in an oxaloacetic acid molecule, which joins with an acetyl group during step 1 of the Krebs citric acid cycle?
A)2 B) 3 C) 4 D) 6
27-Fatty acids enter cellular respiration as
A)one-carbon fragments.
B)two-carbon fragments.
C)three-carbon fragments.
D)long chains of 16 to 20 carbon atoms.
28- 1. Enzymes 2. CO2 consumption
3. ATP synthesis 4. O2 release
Which of the above properties is/are shred by fermentation, photosynthesis and aerobic respiration?
A) 1-2 B) 1-4 C)2-3 D) 1-3 E)3-4
29- The steps of aerobic respiration are listed below.
Glycolysis Krebs ETS
Which of the following is not common characteristic of the step above?
a) ATP synthesis b) Coenzyme utilization
c) Material consumption d) Enzyme activity
e) Substrate level phosphorylation
30- Which of the following does not move from the cytoplasm to the mitochondria during respiration?
A) O2 B) 2H2 C) Glycogen D) ADP E) Phosphate
31- 1.ATP synthesis
2.NADP reduction
3.FADP reduction
4.Oxygen consumption
Which of the events listed above is preformed in Glycolysis, the Krebs cycle and ETS?
A) 1 and 2 B) 2 and 3 C) 3 and 4 D) 1 and 3 E) 2 and 4
32- Which of the following molecules is not involved in neither fermentation nor aerobic respiration?
A) NADH+H B)ATP C)PGAL D)CO2 E)FADH2
33- The process which both aerobic and anaerobic respiration pathways have in common is
a) Fermentation b) ETS c) Glycolysis
d) Krebs cycle e) Photosynthesis
34- The rate of glycolysis is;
a) Stimulated by ATP b) Stimulated by ADP c) Stimulated by O2 d) Stimulated by Citric acid e) Inhibited by ADP
35-Acetic acid is formed as a result of
a. catabolism of fatty acid
b. catabolism of lactic acid
c. anabolism of glycogen
d. anabolism of triglyceride
e. NONE of the above
36. During catabolism of acetic acid by the Krebs cycle enzymes,
a. oxygen is produced
b. hydrogen ions and electrons are passed to NAD
c. BOTH a and b
d. NEITHER a nor b
37. In eukaryotic cells, oxidative phosphorylation takes place
a. in the cytoplasm
b. on ribosomes
c. on the inner plasmalemma
d. inside the mitochondria
38. Cellular respiration produces about how many ATP molecules per glucose molecule oxidized?
a. 2 to 4 b. 10 to 12 c. 20 to 26
d. 36 to 38 e. 45 to 49
39- NAD and FAD
a. are coenzymes
b. are cofactors
c. catalyze chemical reactions
d. combine with P to form ADP
40. Products of cell respiration include
a. water
b. oxygen
c. carbon dioxide
d. BOTH a and b but not c
e. BOTH a and c but not b
41-The usage of which one gives more energy in aerobic respiration?
A)Glucose B)Maltose C)Pyruvate
D) PGAL E)Fructose
42-If there is no oxygen in cytoplasm of muscle cells of human, the private reacts with ______.
a)NADH2 b)ATP c)CO2 d)Private e)Acetyl CoA
43-Which isnt produced during fermentation reaction?
a)Lactic acid b)ATP c)Acetyl Co A d)Heat e)NADH2
44- Glucose Glucose Glucose
Pyruvate Ethyl alcohol CO2+H2O
I II III
Which of the above reactions occurs in all organisms?
a) I-II b) I-III c) I d) II e)III
45-Starch and glucose are structurally similiar molecules. Which of the following have the same degree of similiarity with nucleic acid?
a) Nucleotides b) Purines c)Deoxyribose
d) Phosphoric acid e)Thymine base
50-Aerobic respiration occurs in ______.
a) Chloroplast b) Cytoplasm c) Ribosome
d) Mitochondria e)No one
51-Which of the below reactions are the same(common) bothe for aerobic and anaerobic respiration?
I. Glucose Phosphologlyceraldehyde(PGAL)
II. PGAL Pyruvate
III. Glucose Lactic acid
IV. Acetyl co A oxalo acetic acid
a) I-III b) I-II c)II-III d)III-IV e) I-IV
52.The majority of ATP molecules derived from nutrient metabolism are generated by (the):
a). anaerobic fermentation and glycolysis
b).fermentation and electron transport
c).glycolysis and substrate phosphorylation d) Kreb s cycle and electron transport chaın
e) substrate phosphorylation.
53- Bacteria that can effectively carry out metabolism in the presence or absence of oxygen are described as:
a). Autotrophic b) anaerobic c) Glycolitic d) facultative anaerobes e) fermentive microbes
54-In the electron transport chain , the final electron acceptor is
a) oxygen b) water c) Cytochrome oxidase d). the mitochondrion e).hidrogen ion
55-An enzyme funcytions to increase the rate of a reaction by
a) increasing the concentration of the substance b) decreasing the energy of activation
c) Competing with the substrate
d) breaking down ATP
e) hydrolyzing the substrate
56. With respect to the electron transport chain and chemiosmosis, all the following are true EXCEPT
a) Each NADH yields three ATP`s
b) Each FADH2 yields two ATP`s
c) The cytochrome enzymes utilize NAD and FAD as their coenzyme
d) Hydrogen ions are pumped from the mitochondrial matrix into the intermembranal space
e)The cytochrome enzymes utilize iron as their cofactors
57-The majority of ATP molecules derived from nutrient metabolism are generated by (the):
a)anaerobic fermentation and glycolysis
b).fermentation and electron transport
c).glycolysis and substrate phosphorylation
d).Kreb s cycle and electron transport chaın
e) substrate phosphorylation.
58. In the electron transport chain , the final electron acceptor is
a) oxygen b) water c) Cytochrome oxidase
d) the mitochondrion e).hidrogen ion
59. With respect to the electron transport chain and chemiosmosis, all the following are true EXCEPT
a). Each NADH yields three ATP`s
b). Each FADH2 yields two ATP`s
c). The cytochrome enzymes utilize NAD and FAD as their coenzyme
d). Hydrogen ions are pumped from the mitochondrial matrix into the intermembranal space
e).The cytochrome enzymes utilize iron as their cofactors
60. The metabolization of one molecule of glucose will produce how many molecules of reduced NAD in the Kreb`s cycle?
a). 1 b). 3 c). 6 d). 8 e). 9
61. Fermentation:
a).results in the formation of lactic acid b) does not require oxygen
c). requires oxygen
d). produces large amounts of energy
e). occurs only in bacteria
62.The citric acid cycle functions in which of the following?
a). the production of vitamins
b). the conversion of glucose to lactic acid
c). all anaerobic respiration
d). the production of carbon compounds which may be readily transformed into amino acids
e). the formation of carbon compounds during photosynthesis
63. One of the differences between aerobic and anaerobic respiration is that in anaerobic respiration
a). glucose is used in energy production b). ethyl alcohol is a product
c). ATP is a product
d). carbon dioxide is a product
e). NAD is one of the coenzymes
64.The enzymes involved in oxidation-reduction of a substance cannot operate without NAD.The NAD is known as a (n)
a). cofactor b). coenzyme c). amino acid
d). prosthetic group e). coenocyte
65. The rate at which glycolysis occurs in a cell is stimulated by the concentration of
a). ATP b). ADP c). citric acid
d). oxygen e). carbon dioxide
66-Which of the following processes is responsible for the presence of oxigen in the earth`s atmosphere?
a)The Kerbs cycle
b)The Calvin-Benson cycle
c) Electron transport in chloroplasts
d) Cyclic photosynthesis
e) Noncyclic photosynthesis
67-Anaerobic respiration`` describes metabolism in:
A.Yeast cells
B. Methane-producing bacteria
C. Intensively contracted muscle cells
D.Relaxed muscle cells
E. Brain cells deprived of oxygen
68. Green plants carry out cellular respiration
a)only when photosynthesis ceases
b) when the rate of photosynthesis is high enough to produce enough oxygen
c)only when photosynthesis is in progress d) at all times
e)only when stomates are open
69-A product of anaerobic plant metabolism is:
a) carbon monoxide b) ethyl alcohol
c) hydrochloric acid d) lactic acid e) private