Untitled Deck

Question 1

All known effects of cyclic AMP in eukaryotic cells result from:

Answer 1

Activation of protein kinase

Question 2

Allosteric effectors regulating irreversible enzymes of the glycolytic pathway include all EXCEPT:

Answer 2

Glucose

Question 3

Child’s recovery issue after succinylcholine use:

Answer 3

An autosomal recessive disorder that interferes with succinylcholine metabolism

Question 4

Rotenone or amytal effect on mitochondria:

Answer 4

Restrict the flow of electrons between NAD and coenzyme Q

Question 5

Proportion of normal siblings of individuals with cystic fibrosis who are likely carriers:

Answer 5

2/3

Question 6

mRNA vs. nuclear DNA sequence length discrepancy:

Answer 6

Introns are found in nuclear RNA

Question 7

All of the following muscles attach to the radius EXCEPT:

Answer 7

Brachialis

Question 8

Inhibitor of sodium-dependent glucose transport across the plasma membrane:

Answer 8

Ouabain

Question 9

Correct statements about the knee joint:

Answer 9

The biceps femoris tendon crosses the fibular collateral ligament

Question 10

Substrate accumulation after citrate addition to hepatocytes:

Answer 10

Fructose 6-phosphate → Fructose 1,6-bisphosphate

Question 11

Hexose monophosphate pathway characteristic EXCEPT:

Answer 11

It requires ATP for phosphorylation

Question 12

Absence of lipoproteins indicates defect in:

Answer 12

Ability to synthesize apoprotein B-100

Question 13

Risk of child being colorblind:

Answer 13

25%

Question 14

Muscle originating predominantly on the fibula EXCEPT:

Answer 14

Tibialis anterior

Question 15

Possible cause of all deaf children to parents with recessive deafness:

Answer 15

Allelism between the recessive genes

Question 16

Correct statement about the iliofemoral ligament:

Answer 16

It is shaped like an inverted Y

Question 17

Upper limb muscle characteristics:

Answer 17

The anterior group of forearm muscles pronates the forearm

Question 18

Risk of fourth child having Tay-Sachs:

Answer 18

1 in 4

Question 19

Probability of next child having autosomal dominant disease:

Answer 19

Cannot be determined

Question 20

Rotenone/amytal mitochondrial inhibition:

Answer 20

Restrict the flow of electrons between NAD and coenzyme Q

Question 21

Posterior arm compartment muscles responsible for wrist extension:

Answer 21

Extensor digitorum and others

Question 22

Homozygous percentage for polymorphic alleles:

Answer 22

25 percent

Question 23

Statement about inheritance:

Answer 23

Inbred populations have a high frequency of recessively inherited disorders

Question 24

Protein elevated in Down’s syndrome:

Answer 24

Alpha fetoprotein

Question 25

Activated glucose form in glycogen synthesis:

Answer 25

Uridine diphosphate-glucose

Question 26

Medial meniscus more prone to damage because:

Answer 26

Its fixed attachment to the tibial collateral ligament

Question 27

Reducing sugar false statement:

Answer 27

It is found at the branch points in glycogen

Question 28

Enzyme regulated by cAMP in liver:

Answer 28

Glycogen synthase

Question 29

Antidote for organophosphate poisoning:

Answer 29

Pralidoxime and atropine

Question 30

Tay-Sachs carrier frequency in Ashkenazi Jews:

Answer 30

1/30

Question 31

Antibiotic inhibiting electron transport:

Answer 31

NADH dehydrogenase

Question 32

Heme iron bound by only one coordination:

Answer 32

Cytochrome c

Question 33

African-American female with HbC trait:

Answer 33

Heterozygous for HbC

Question 34

Phosphoprotein phosphatase effect in liver:

Answer 34

Increased glycogen synthesis, decreased degradation

Question 35

Dorsiflexor and inverter of foot:

Answer 35

Extensor hallucis longus

Question 36

Lateral movement of integral membrane proteins:

Answer 36

All of the above

Question 37

Quaternary nitrogen molecules rarely cross membranes because:

Answer 37

The charge on the nitrogen prevents crossing

Question 38

False statement about synovial joints:

Answer 38

The articular cartilage is covered by the synovial membrane

Question 39

Formation of phosphoenolpyruvate from pyruvate EXCEPT:

Answer 39

CO2 is given off

Question 40

Disease with abnormal glycogen branch points:

Answer 40

Andersen’s disease

Question 41

Aspirin’s anti-inflammatory function:

Answer 41

Inhibits the synthesis of prostaglandins

Question 42

Decrease of insulin stimulates gluconeogenesis by:

Answer 42

Inhibition of pyruvate dehydrogenase

Question 43

Bones forming temporal fossa floor:

Answer 43

All of the above

Question 44

Enzyme converting aldose to ketose:

Answer 44

Isomerases

Question 45

Peptide property at pH 7:

Answer 45

It has an overall positive charge at pH 7

Question 46

Amino acid with two asymmetric carbons:

Answer 46

Threonine

Question 47

Isoelectric point of lysine:

Answer 47

9.7

Question 48

Desmosine is unique to:

Answer 48

Elastic fibers

Question 49

Reason for unaffected daughter with X-linked dominant disorder:

Answer 49

Nonpaternity