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Quiz 230
Mdcat-past-papers Quiz
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4581. The outer surface of the axon membrane in a resting neuron is:
Negative due to sodium ions
Positive due to sodium ions
Positive due to potassium ions
Neutral due to balanced ions
4582. Which class of animals excrete ammonia as their primary nitrogenous waste?
Uricotelic
Urotelic
Ammonotelic
Ureotelic
4583. Which of the following best describes the direction of impulse traveling in a typical neuron?
Axon --- dendrite --- cell body
Dendrite --- cell body --- axon
Synapse --- axon --- dendrite
Cell body --- dendrite --- axon
4584. Homopolysaccharide that is found in the cell wall of fungi and in the exoskeleton of arthropods is:
Cellulose
Glycogen
Starch
Chitin
4585. The most abundant lipids in living things are:
Terpenes
Waxes
Steroids
Acylglycerols
4586. Name the type of bond that join amino acids to form a polypeptide chain:
Hydrogen bond
Ionic bond
Glycosidic bond
Peptide bond
4587. Which of the following is not a globular protein?
Enzyme
Hormone
Channel protein
Collagen
4588. Which specialized cells of liver perform phagocytic function?
Kupffer cells
Schwann cells
Parietal cells
Chief cells
4589. According to Darwin, the main force behind evolution is:
Migration
Genetic mutation
Artificial selection
Natural selection
4590. Beside fertilization, the function of fallopian tube is:
Notishment of embryo
Transport of ovum towards uterus
Secretion of female hormones
Implantation of zygote
4591. Which property of water allows it to stick to polar surface like wood?
Density
Adhesion
Cohesion
Non-polar attraction
4592. The water content of human kidney is regulated by ADH. Which of the following gland is involved in its secretion process?
Adrenal gland
Pituitary gland
Thyroid gland
Parathyroid gland
4593. The heat of formation of CO and CO₂ are -26.4 Kcal and -94.0 Kcal respectively. The heat of combustion of carbon monoxide according to Hess's Law will be:
+26.4Kcal
-67.6Kcal
+94.0Kcal
-120.4Kcal
4594. Rate of dehydration of alcohol is:
3°>2°>1°
1°>3°>2°
2°>3°>1°
3°>1°>2°
4595. For which reaction, the value of Kc increases with increase in temperature?
CH₄ + O₂ → CO₂ + H₂O
NaOH + HCl → NaCl + H₂O
2SO₂ + O₂ → 2SO₃
H₂ + I₂ → 2HI
4596. Correct order of bond energy will be:
HCl>HBr>HI
HBr>HCl>HI
HI>HCl>HBr
HCl>HI>HBr
4597. Which of the following is least volatile?
Glycerol
Water
Acetic acid
Diethyl ether
4598. IUPAC name of the compound is CH₃(CH₂)₆CH(CH₂):
2-methylheptane
3-methylheptane
4-methylheptane
Octane
4599. IUPAC name of the compound C₂H₅CH=C(C₃H₅) C₂H₅ is:
1-2-diethyl-2-propylethene
3-ethylhept-3-ene
4-ethylhept-3-ene
4-ethylhept-2-ene
4600. Which of the following molecules have similar molecular shape?
NH₃ & AlCl₃
BCl₃ & NH₃
AlCl₃ & PCl₃
H₂O & SnCl₂
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