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bio. mid-term

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Quiz on bio mid-term
أطباء2020
Quiz by أطباء2020, updated more than 1 year ago
أطباء2020
Created by أطباء2020 over 9 years ago
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Resource summary

Question 1

Question
All the following metabolic changes according to DM II are true EXCEPT:
Answer
  • Hyperglycaemia
  • Ketoacidosis
  • Hypertriglyceridemia
  • Polyurea

Question 2

Question
Treatment of DM I depends on:
Answer
  • Exogenous insulin
  • Diet control
  • Weight loss
  • All of above

Question 3

Question
All the following is true about DM I EXCEPT:
Answer
  • Lypolysis and weight loss
  • Proteolysis results in -ve nitrogen balance
  • Hyperglycaemia is correlated to diet
  • Diagnosed by fasting blood glucose test

Question 4

Question
Which of the following is true:
Answer
  • Fasting glucose level 110-126 mg/dl indicates diabetes
  • Fasting glucose level 126mg/dl indicates pre-diabetes
  • Normal fasting glucose level os less than 40 mg/dl
  • when random blood glucose level is 200 mg/dl in just one occasion indicates diabetes

Question 5

Question
Choose the correct answer:
Answer
  • DM I is more common than DM II
  • Ketosis is more common in type II diabetes
  • Insulin level is high at first in type I
  • DM II is responsive to hypoglycemic drugs

Question 6

Question
Major products of pepsin digestion are:
Answer
  • Free amino acids
  • Monopeptides
  • Dipeptides
  • Oligopeptides

Question 7

Question
Pancreatic secretions contain all EXCEPT:
Answer
  • Proelastase
  • Enterokinase
  • Trypsinogen
  • Procarboxypeptidase

Question 8

Question
Transport of amino acids through cell membranes in intestine, kidney & brain occurs due to :
Answer
  • Hydrolysis of ATP
  • Hydrolysis of peptide bond of GSH
  • Simple diffusion
  • None of above

Question 9

Question
The coenzyme needed for L-amino acid oxidase is:
Answer
  • NAD+
  • NADP+
  • FMN+
  • FAD+

Question 10

Question
Which of the following can't be found in cytosol of liver:
Answer
  • Carbamoyl P
  • Citrulline
  • Ornithine
  • Fumarate

Question 11

Question
In vit. B6 deficiency, which enzyme of the following will not be affected:
Answer
  • GABA-T
  • AST
  • MAO
  • GAD

Question 12

Question
N7 of purines is derived from:
Answer
  • Glycine
  • Aspartate
  • Arginine
  • Histidine

Question 13

Question
Phenylalanine is essential in synthesis of all EXCEPT:
Answer
  • Thyroid hormones
  • Catecholamines
  • Serotonin
  • Melanine

Question 14

Question
G6PD deficiency will effect function of all EXCEPT:
Answer
  • Glyoxalate oxidase
  • Cysteine dioxygenase
  • Nitric oxide synthase
  • 3 phosphoglycerate Dehydrogenase

Question 15

Question
Glutamate semialdehyde can be formed from:
Answer
  • Proline
  • Arginine
  • Ornithine
  • All of above

Question 16

Question
DihydroFolate reductase is inhibited by:
Answer
  • Methotrexate
  • Trimethoprim
  • Aminopterine
  • All of above

Question 17

Question
C8 of purines comes from :
Answer
  • Methylene group
  • Methenyl group
  • Methyl group
  • Hydroxymethyl group

Question 18

Question
Absorption of vit. B12 occurs in:
Answer
  • Stomach
  • Duodenum
  • Jejunum
  • Ileum

Question 19

Question
Inactive form of vit. B12 is:
Answer
  • Methyl cobalamin
  • 5-deoxyadenosyl cobalamin
  • Cyanocobalamin
  • Hydroxycobalamin

Question 20

Question
Vit. B12 deficiency leads to:
Answer
  • Megaloblastic anemia
  • Glossitis
  • Methylmalonic aciduria
  • All of above

Question 21

Question
Insulin structure has:
Answer
  • Intermolecular disulfide bonds
  • Intramolecular disulfide bonds
  • A+B
  • None of above

Question 22

Question
Action of insulin includes:
Answer
  • Induction of gluconeogenesis
  • Induction of glycolysis
  • Induction of Lypolysis
  • Induction of proteolysis

Question 23

Question
Increasing in amino acids level and decreasing glucose level in blood stimulates release of :
Answer
  • Insulin
  • Glucagon
  • A+B
  • Epinephrine

Question 24

Question
Allocteric activator of acetyl coA carboxylase is:
Answer
  • Ca++
  • Citrate
  • B12
  • Cu++

Question 25

Question
During fasting state which of the following is true:
Answer
  • Lipogenesis occurs in liver
  • Proteolysis increases at late fasting
  • Glycogenolysis occurs at late fasting
  • Glucagon level increases
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