MDCAT Solved MCQs Past Papers Biology Part 1 Unit 11

MDCAT Solved MCQs: When you sit down to take a practice test, make sure you know how long you have to answer each question and how to do it before you start. For example, figure out how long each section will take you (don’t be afraid to practice in real-time!) and then plan your day so that you can study for three solid hours in one or two sittings.

Early on, test yourself: Give yourself at least 20 minutes before a timed session to answer a couple of warm-up questions. This gives your body time to digest and lets you know if it’s going to be an on or off day.


MDCAT Solved MCQs| MDCAT Solved MCQS of Past Papers| MDCAT Solved MCQs From Past Papers of Entry Test|

1) In what stage of aerobic respiration ere 2+ carbon molecules oxidized completely to carbon dioxide? (Entry Test 2009)
a) Kreb’s cycle
b) Glycolysis
c) Calvin cycle
d) ETC
2) Chlorophylls absorb mainly wavelength: (Entry Test 2009)
a) Yellow
b) Green
c) Violet-blue
d) Indigo
3) Which form of anaerobic respiration occurs in muscle cells of humans and other animals during extreme physiological activities? (Entry Test 2009)
a) Alcoholic fermentation
b) Lactic acid fermentation
c) Glycolysis
d) Pyruvic oxidation
4) In which of the following life processes is ATP produced? (NSTC-8-Sample paper 2010-2012)
a) I Photosynthesis a) I only
b) II Aerobic respiration b) II only
c) III Anaerobic respiration c) I and II only
d) I, II and 111
5) Red corpuscles to hemoglobin as chloroplasts are to (NSTC-8-Sample paper 2010-2012)
a) Guard cells
b) Palisade cells
c) Chlorophyll
d) Photosynthesis
6) Which of the following is not the end product glycolysis: (Entrance self- Test-2011)
a) ATP
b) Oxaloacetate
c) Reduced N AL)
a) Pyruvate

Entrance Self-Practice Test With Keys:

7) Which of the following dues occur for the formation of acetyl CO-A from pyruvate:
a) Decarboxylation
b) Hydrogenation
c) Carboxylation
d) Deamination
8) At the beginning of Kreb’s cycle cetyl CO-A combines with which substrate to form citrate (6-C):
a) Oxaloacetate
b) Oxoglutarate
c) Fumarate
d) Succinate
9) Which of the following is not the end product or non-cyclic photophosphorylation: (Entrance Self- Test-2011)
a) Reduced NADP
b) 02
c) Co2
a) ATP
1 0) The product(s) of cyclic phosphorylation is / are: (Entry Test-2012)
a) ATP
b) NADP and ATP
c) NADP, ATP and 02
12) Total NADH formed by one glucose molecule during Kreb’s Cycle are: (Entry Test-2012)

11) The end product glycolysis is: (Entry Test-2012)
a) Citric acid
b) ADP
c) Reduced FAD
d) Pyruvate
12) The terminal electron acceptor in the electron transport chain is: (Entry Test-2012)
a) Cytochrome
b) Hydrogen
c) Oxygen
d) ATP
13) One molecule of FADHI is produced in Kreb’s cycle during conversion or:
(Entry Test-2012)
a) Fumarate Malate
b) Malite Oxaloacetate
c) Succinate Fumarate
d) Ketaglutarate Succinate

Entrance Test Original MCQs With Keys:

14) Every molecule of NADH, fed into ETC produces: (Entrance Test-2013)
a) 2 ATP
b) 3 ATP
c) 4 ATP
d) 6 ATP
15) Final acceptor of electrons in the respiratory chain is: (Entrance Test-2013)
a) Cytochrome a3
b) Cytochrome a
c) Cytochrome c
d) Oxygen
16) The end product of anaerobic respiration in humans and other mammals is:
(Entrance Test-2013)
a) Pyruvic acid
b) Lactic acid
c) Ethanol
d) Glucose
17) A biochemical process that occurs within a cell to breakdown complex compounds to produce energy is called: (Entrance Test-2013)
a) Respiration
b) Oxidation-reduction
c) Photosynthesis
d) Photophosphorylation
18) ‘Which part of chlorophyll molecule absorbs light?
a) Pyrrol
b) Thylakoid membrane
c) Phytol

d) Porphyrin Ring
19) Oxidative phase of glycolysis starts with
(Entrance 4)
dehydrogenation of:
a) Glycolysis
c) Glyceraldehyde 3-phosphate
20) in one turn, the Kreb’s cycle produces -one molecule of AT P, one molecule of FADH2, and molecules of NADH: (Entrance Test-2014)
a) 1

b) 3

c) 2

d) 4

Original Solved MCQs From MDCAT:

21) Which one of the follöwing is the stage of cellular respiration for which oxygen is not essential?
(Entrance Test-2014)
a) Glycolysis
b) Pyruvate oxidation
c) Kreb’s cycle.
d) Electron Transport Chain
22) Pyruvate ……………….>Acetyl CoA
d) FADH_____FAD + H+
23) In the light-independent stage of photosynthesis, the form an unstable C02 combines with
6-carbon intermediate: (Entrance Test-2015)
a) Ribulose bisphosphate
b) Hexose sugar
c) Glyceraldehyde 3-phosphate
d) Glyceraldehyde 9-phosphate
24)  In, glycolysis, glycerate-l, bisphosphate is converted into glycerate-3-phosphate by losing phosphate molecules. (Entrance Test-2015)
a) 3
b) 1
c) 2
d) 4

25) Malate is oxidized to oxaloacetate in Kreb’s cycle: (Entrance Test-2015)
a) ATP
c) NAD
d) FAD
26) In the electron transport chain, the electrons from NADH and FADH2 are passed to:
(Entrance Test-2015)
a) Co-enzyme c
b) Cytochrome a
c) Co-enzyme Q
d) Cytochrome a3
27) Carriers of Respiratory chains are located on (Entrance Test-2015)
a) Matrix of mitochondria
b) Outer membrane of mitochondria
c) Inner membrane of mitochondria
d) Cytoplasmic matrix
28) Each ……consists of a g light-gathering antenna complex and reaction center. (Entrance Test-2012)

Entrance Tests Previous Papers:

a) Photon
b) Chlorophyll
c) Electron
d) Photosystem
29) Photosystem I have chlorophyll g molecules Which absorb maximum light of (Entrance Test-2016)
a) 700 nm
b) 680 nm
c) 580 nm
d) 780 nm
30) Cyclic now or C4 photosynthesis produces: (Entrance Test-2015)
a) only C02
b) ATP and C02
c) Only Oxygen
d) ATP
31) Immediøte product formed after C02 fixation in Calvin Cycle is: (Entrance Test-2016)
a) Unstable 6-cørbon compound
b) Unstable 5-carbon compound
c) Unstable 4-carbon compound
d) Unstable 3-carbon compound
32) Functional group of chlorophyll a is: (Entrance Test-2016)
a) —CH3
b) —-CHO
c) —COOH
d) –OH
33) Chlorophyll molecule’ contains: (Entry Test-2017)
a) Mg++
b) Na+
c) K+
d) Ca++
34) The tail of the chlorophyll molecule is embedded in: (Entry Test-201T)
a) Membrane of mitochondria
b) Thylakoid membrane
c) Membrane of SER
d) Membrane of RER
35) Carotenoids absorb light (Entry Test-2017)
a) Yellow-orange range
b) Orange-red range
c) Bluerviolet range
d) Yellow-rechange
36) Chlorophyll “a” and chlorophyll “b” differ in one of the functional groups Chlorophyll “a” has: (Entrance Test-201T)
a) –CHO
b) ÄOH
c) .—NH2

d) CH3
37) Calvin cycle occurs in: (Entry Test-2017)
a) Grana of chloroplast
b) Stroma of chloroplast
c) Chlorophyll (Reaction center)
d) Roots of plants
38) Glycerate-3-phosph8te in the presence of ATP and reduced NADP from light depend stage is reduced: (Entry Test-2011)
a) 3-carbon compound
b) Ribulose bisphosphate
c) carbon compound
d) 6-carbon compound

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