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METABOLİSM
1- I . Adenine
II. Ribose
III. Phosphate
IV. Thymine
Which of the above is/are found in the structure of ATP molecules?
a) I b) I-II c) I-III d) I-II-III e) I-II-III-IV
1. Which of the following has lower energy then others?
a) ATP b) NADH2 c) FADH2 d) ADP e) AMP
2. Which of the following terms, the one that includes all the others is
a)Oxydation b)respiration c)digestion d)excretion e)metabolism
3. I. H2O H2 + 1/2O2
II. ATP ADP + P
III. Burn of food
Which of the above reaction is / are exothermic(Exergonic)
a) I-II b) I-III c) I-II-III d) II-III e) II
4. Which of the following is not necessary to measure the human basal metabolism?
a) measurement of the body surface
b) consumption of a meal 12 hours before measurement
c) detarmination of the room temperature
d) complate at rest during measuring
e) calculation of calories obtained from last meal
6. 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
7- Which of the following is an example of catabolism ?
a) Protein synthesis
b) ATP synthesis
c) Respiration
d) Starch synthesis
e) Photosynthesis
8- Which of the following statements describes the importance of ATP for living things ?
a) Perform the light phase of photosynthesis
b) Breaking down of it releases energy
c) Basic element of hereditary material
d) Provides energy for the vital biochemical reactions of organisms e) Maintain strongness of the plasma membrane
9- The phosphorylation of ADP to form ATP requires energy. What happens to most of this energy?
a)It is lost as heat to the surrounding.
b)It is converted into electrical energy.
c)It is stored as chemical bond energy.
d)It is destroyed during the course of the reaction.
10- Which of the following is not a property of ATP?
A) contains two high energy phosphate bonds
B) synthesized in all cells
C) has phosphate groups that are excised by enzymes
D) composed of adenine, ribose and phosphate
D) synthesized as a result of hydrolysis of another compounds
11-Which of the following molecules has no role in cell metabolism?
A)Enzymes B)Coenzymes C)Vitamins D)ATP E) Cellulose
12-A molecule of ATP is structurally most similar to a molecule of
A)RNA nucleotide B)DNA nucleotide C) amino acid D)fatty acid
13-A molecule of ADP differs from a molecule of ATP in that it has
A) diamine instead of thymine
B) fewer phosphate groups
C) more phosphate bonds
D) less electrical activity
14-Which of the following biochemical reactions is a catabolic reactin?
A) The construction of a protein from amino acids;
B) ADP + phosphate + energy ATP + H2O;
C) C6H12O6 + 6O2 6CO2 + 6H2O + energy;
D) 6CO2 + 12H2O + energy C6H12O6 + 6O2 + 6H2O
15- I. Cellulose synthesis
II.Transfer of hydrogen from NADPH+H to CO2
III.Degradation of glucose into CO2 and H2O
IV.Consersion of glucose to pyruvate
V.Conversion of pyruvate to glucose
Which of the reactions listed above is/are catabolic ?
A-I and II B- Only I C- III and IV D- I and V E- Only II
16-Which of the following is not a property of ATP?
A-contains two high energy phosphate bonds
B-synthesised in all cells
C-has phosphate groups that are excised by enzymes.
D-composed of adenine ,ribose and phodpate groups
E-synthesised as a result of hydrolysis of another compaund
17-Which of the following molecules has no role in cell metabolism?
A-Enzymes B-Coenzymes C-Vitamins D-ATP E-Cellulose
18-Which of the following cell organelles is capable of dehydration synthesis?
A-Chloroplast B-Lucoplast C-Golgi body
D-Ribosome E-Lysosome
19- Which of the following is not common characteristic of DNA, RNA and ATP?
A) Presence of pentose(5c) sugar with in their structure
B) Effects of any mutation seen in subsequent generation
C) Presence of adenine with in their structure
D) Presence of adenine within their structure
E) Presence of phosphodiester bound
20-The following molecules can all be found in a eukaryotic cell.
1 ADP
2 Oxygen
3 Enzyme
4 Phosphate
21- Which are involved in ATP synthesis in this cell?
A) 1, 2, 3, 4 B) 3 and 4 C) 2 and 4
D) 1, 2, 4 E) 1, 2, 3
22- Electrons are vital for the extraction of energy in catabolic reaction. Which of the following elements are used as an electron source?
a) Hydrogen b) Carbon c) Oxygen
d) Nitrogen e) Magnessium
23- The energy molecule used by all cells to drive basic cell processes such as membrane transport, muscle contraction, and nerve conduction, is
a. phosphate
b. cyclic AMP
c. adenosine quadphos
d. adenosine triphosphate
e. glucose
24- NAD and FAD
a. are coenzymes
b. are cofactors
c. catalyze chemical reactions
d. combine with P to form ADP
25- The energy molecule used by all cells to drive basic cell processes such as membrane transport, muscle contraction, and nerve conduction, is
a. phosphate
b. cyclic AMP
c. adenosine quadphos
d. adenosine triphosphate
e. glucose
26- ATP is made of
I. Adenine
II. Ribose
III. Thymine
IV. Three phosphate
A) I, II, III
B) I, III, IV
C) II, III, IV
D) I, IV
E) I, II, IV
27-Cells make makromolecules by linking together relatively small molecules into long chains called polymers. When sugars, amino acids and nucleic acids are linked into their polymers a water molecule is also released. What are such reactions called?
a.Hydrolysis reactions b.Spontaneous reactions c.Condensation reactions d.Cyclic reactions e.Anabolism
28-What single word describes the sum of all the many chemical reactions that take place in cells?
a.Allosterism b.Anabolism c.Aneurysm d.Metabolism e.Catabolism
29-The enzyme involved in oxidation-reduction of a substance can not operate without NAD: The NAD is known as:
a.cofactor b.prosthetic group c.coenzyme d.amino acid e.coenocytic
30-Which kind of energy is used by all living things?
a) Chemical energy
b) Nuclear energy
c) Light energy
d) Electrical energy
e) Kinetic energy
31-The phosphorylation ofADP is an example of a (n):
a) hidrolysis reaction
b) endergonic reaction
c) exergonic reaction
d) decomposition reaction
e)condensation-reaction
32- Metabolism in living organisms can be defined as a linked sequence of exergonic and endergonic reactions. Energy is often ``carried`` through these reactions in the form of:
A. ATP
B. Glucose
C. Proteins
D. Ribosomes
E. mitochondria
33- When a protein is broken down to its component amino acids, the type of -
reaction cJoing this is
A. a condensation reaction B. a deamination reaction " C. a hydrolysis reaction D. a peptide reaction E. an anabolic reaction
34- Which type of metabolic reaction is likely to require ATP?
A. Photolytic
B. Hydrolytic
C. Exergonic
D. Endergonic
E. Ionic