MCATprep

Unit conversion factors

Q.1 When tWo protons are Brought together
A:kinetic energy increase
B:Potential Energy Between Them increase
C:potential Energy between them Decrease
D:potential energy between them Does not change
Ans is B

Q. 2 Amino acids are arranged in proper sequence during protein synthesis according to the instructions transcribed on ..
A.transfer RNA
B.Ribosomal RNA
C.messanger RNA
D.DNA
Ans is C

Q.3 Parallel Cellulose molecules are held together by:
A: Covalent bonds
B: Ionic bonds
C: Hydrogen bonds
D: NOT

Ans is A
Q4. golgi bodies are absent in
a) liver cells
b) blue green algae
c) yeast
d)higher plants
Ans is B

Q5. *A viral reproductive cycle that culminates in death of host cell is known as:*
A: lysogenic cycle
B: lytic cycle
C: kreb's cycle
D: glycolysis
Ans Is B

Q6. *Number of pairs of cranial nerves is*
(A)10
(B)11
(C)12
(D)13
Ans is B

Q7. *In human the spinal nerves are*
(A)10 pairs
(B)12 pairs
(C)11 pairs
(D)31 pairs
Ans is d

Q8. The light dependent reaction of photosynthesis occurs in:

A. Stroma of chloroplast
B.Guard cells of stomata
C. Thylakoid membrane of chloroplast
D.Cytoplasm of leaf cell
Ans is C

Q9. The enzymes present in pancreatic juice are
A. Amylase, Trypsinogen, Peptidase, Rennin
B.Trypsinogen, Lipase, Amylase, Procarboxypeptidase
C. Peptidase, Pepsin, Amylase, Rennin
D.Maltase, Amylase, Trypsinogen, pepsin

Ans is *B*

Q10. What is the smallest bone in human skeletion
(A)Hyoid bone
(B)stapes or Stirrup
(C)sternum
(C)inchus
Ans is *B*

Q11. A Plant with heterozygous alleles for height is ?
A)Dihybrid
B)Hybrid
C)Dual hybrid
D)Heterotype
Ans is *B*

Q12. Which of the following is
respiratory fuel?
a. Sucrose
b. Glucose
c. Galactose
d. Mannose
And is *B*

Q13.The antidiuretic hormone is released from:
A: Hypothalamus
B: Anterior pituitary lobe
C: thalamus
D:the posterior pituitary lobe
Ans is *D*

Q14. Select the one which is not a function of smooth endoplasmic reticulum (SER);
A)Metabolism of lipids
B)Transport of materials
C)Transmission of impulses
D)Processing of glycoproteins

Ans is *D*

Q15. Which of the following is not a common function of blood and lymph:

A) Transportation of nutrition
B) Transportation of antibodies
C) Transportation of gases
D) Transportation of proteins
Ans is D

Q16. How does an enzyme increase the rate of reaction

A By bringing the reacting molecules into precise orientation
B By increasing the rate of random collisions of molecules
C By shifting the point of equilibrium of the reaction
D By supplying the energy required to start the reaction
Ans is A

Q17. Which of the following is non-reducing disaccharide sugar?
A)Mannose
B)Maltose
C)Sucrose
D)Lactose

Ans is *C*

Q18. Which of the following is not a product of the light reaction of photosynthesis?
a) Oxygen
b) NADH
c) NADPH
d) ATP
Ans is *B*

Q19. Sympathetic and Parasympathetic nervous system are division of :
A) Central nervous system
B) peripheral nervous system
C) Somatic nervous system
D) Autonomic nervous system
Ans is *D*

Q20. Which part of the cell does glycolysis occur in?

A Mitochondrion
B Chloroplast
C Cytoplasm
D Nucleus

And is *C*

Q21. 𝐏𝐡𝐨𝐭𝐨𝐬𝐲𝐧𝐭𝐡𝐞𝐬𝐢𝐬 𝐢𝐬 𝐦𝐞𝐚𝐬𝐮𝐫𝐞𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐥𝐞𝐚𝐟 𝐨𝐟 𝐚 𝐠𝐫𝐞𝐞𝐧 𝐩𝐥𝐚𝐧𝐭 𝐞𝐱𝐩𝐨𝐬𝐞𝐝 𝐭𝐨 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐰𝐚𝐯𝐞𝐥𝐞𝐧𝐠𝐭𝐡𝐬 𝐨𝐟 𝐥𝐢𝐠𝐡𝐭.

A- Highest in green light
B- Highest in red light
C- Highest in blue light
D- Highest in red & blue light

Ans is *D*

Q22. The tail of chlorophyll molecule is embedded in:
A.membrane of mitochondria
B.thalakoid membrane
C. membrane of SER
D. membrane of RER

Ans is *B*

Q23. Photosynthesis is a
A. Catabolic process
B. Anabolic process
C. Metabolic process
D. Thermabolic process

Ans is *B*

Q24.How much percentage of water is used for photosynthesis:
A) 1%
B) 2%
C) 3%
D) 4%
Ans is *A*

Q25. Cell wall is.... In nature

Hydrophilic
Hydrophobic
None

Ans is *HYDROPHILIC*

Q26. Digestion of nucleic acid occurs in
A.Oral cavity
B.Stomach
C Small intestine
D.Oesophagous

Ans is *C*

Q27.Food is assimilated into the body from digestive tract in:

A. Esophagus
B. Stomach
C. Small intestine
D. Re**um

Ans is *C*

Q28. Centrioles Are made up of ...............Microtubeles?
A. 3
B. 9
C. 12
D. 27

Ans is *D*

Q29. Failure of last ovulation within female results__
a fertilization
b conception
c menstruation
d gestation

Ans is *C*

Q30. Gametes produced in Dihybrid cross can be written as
A.YrRy
B.YyRr
C.both possible
D.Not

Ans is *B*

Q.31Which part is involved in both respiration and digestion ?
A.stomach
B.intestine
C.Pharynx
D.Larynx

Ans is *C*

Q32. Which organelle releases oxygen
A-Ribosomes
B-Golgi bodies
C-Mitochondria
D-Chloroplast

Ans is *D*

Q33. How many bones does a human male and female consists of?
A) 208 Male and 208 Female
B) 208 Male and 206 Female
C) 207 Male and 206 Female
D) 206 Male and 206 Female

Ans is *D*

Q34."Graveyard" of RBC's is?
A.Spleen
B.Bone marrow
C.Liver
D.Appendix

Ans is *A*

Q35. Which of the following react with enzymes other than active site
A.activator
B.coenzymes
C.competitive inhibitor
D. end product inhibitor

Ans is *D*

Q36 Upon increasing the temperature the shape of enzyme's active site?

A.Remain same
B.Changes
C.Adopts a geometric conformation
D.Denatures

Ans is *D*

Q37..ATP synthesis during light reactions is
A. Oxidative
B. Photolysis
C. Substrate phosphorylation
D.Photophosphorylation

Ans is *D*

Q38. Moderate water accessibility is the requirement of:
A.Hydrophytes
B.Xerophytes
C.Mesophytes
D.Halophytes

Ans is *C*

Q39. The genome of viruses is composed of

Bio-diversity | Variety of Life
A.DNA
B.RNA
C.Protien
D.Both A and B

Ans is *D*

Q40. Secretion of progesterone by corpus luteum is initiated by.
A.Testosterone
B.MSH
C.LH
D.FSH

Ans is *D*

Q41. Which is currency of the cell?
A)ATP
b)DNA
C)Chromosomes
D)Enzyme

Ans is *ATP*

Q42. Where does the AIDS virus infect?
A.RBCs
B. WBCs
C. leukocytes
D.none

Ans is *C*

Q43. Intrinsic factor is secreted by

A.Pancreas
B.Liver
C. Stomach
D.Duodenum

Ans is *C*

Q44. In human gut, chylomicrons are formed by the combination of:

A. Proteins and carbohydrates
B.Fats and proteins
C. Fats and carbohydrates
D. Vitamins and fats

Ans is *B*

Q45. The light dependent reaction of photosynthesis occurs in:

A.Stroma of chloroplast
B.Guard cells of stomata
C.Thylakoid membrane of chloroplast
D. Cytoplasm of leaf cell

Ans is *C*

Q47. Menstrual cycle completes in?
A.28 days
B.29 days
C.30 days
D.ALL OF ABOVE

Ans is *A*

Q48. Erethroblastosis foetalis come in baby when mother is.
a. Rh positive
b. Rh negative
c. Normal.
d. Both a and b

Ans is *B*

Q49. Aerobic respiration results in how much ATP?
A. 2
B.36
C.18
D. 32

Ans is *B*

Q50. In a newly discovered virus you might find:
a)RNA
b)DNA
c)Both
d)DNA or RNA

Ans is *D*

Q51. Second major form of hepatitis is:

A. Hepatitis A
B. Hepatitis B
C.Hepatitis C
D. Hepatitis D

Ans is *B*

Q52. During dark reaction the three carbon atoms of 3-PGA are derived from
A. RuBP only
B.Co2 only
C.RuBP+CO2
D RuBP+Co2+PEG

Ans is *C*

Q53 .What are the products of the light reactions of photosynthesis?
A ATP &NADP
B. ATP.NADPH2 & Oxygen
C. ATP PGA & NADH2
D.ATP .PGA & OXYGEN

Ans is *B*

Q54. Select the correct sequence of biological organization.
a. Atom>molecule>tissue>organelle
b. Cell>organ>organisms
c. Atom>sub atom>molecule>organ
d. Atom>molecule>cell>tissue

Ans is *D*

Q55. Average Life of RBC is
A:160 days
B:130 days
C:120 days
D:110 days

Ans is *C*

Q.56 RuBP + O2 —Rubisco—> PGA + _______
A. Phosphoglycerate
B.Phosphoglycolate
C. Glycerate
D. Glycolate

Ans is B

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