Biology Part 1 Unit # 2 MCQs

1-A basic kmowledge of biochemistry is essential for understanding physiology and
A-histology
b-cytology
C-anatomy
D-genetics

2-a bacterial cell has carbohydrates in a %age of
A-1%
B-2%
C-3%
D-4%

3-peptide bond is a link in
A-C-N link
B-C-O link
C-N-H link
D-C-H link

4-catabolism is to anabolism as _____ is to ______
A-exergonic,spontaneous
B-exergonic,endergonic
C-free energy,antropy
D-work,energy

5-what is the most abundant compund in the bodies of all organisms?
A-proteins
B-DNA
C-water
D-salts

6-which bond in irganic compound is the potential source of chemical energy?
A-H-H
B-C-H
C-C-N
D-C-C

7-the amount of water in human brain cell is
A-20
B-90
C-85
D-89

8-which on of the following is called cardle of life
A-carbon
B-water
C-DNA
D-enZyme

9-the specific heat capacity of water is
A-0.8
B-1.0
C-0.64
D-0.08

10-animals obtain carbohydrates mainly from
A-glucose
B-starch
C-cellulose
D-glycogen

11-which of the following kind of atoms do not occur in carbohydrates
A-carbon
B-hydrogen
C-nitrogen
D-oxygen

12- the most abundant carbohydrate in nature is
A- pectin
B-glycogen
C-cellulose
D-chitin

13- which on of the following is a carbohydrate
A-chitin
B-cutin
C-fibrin
D-albumin

14-on hydrolysis sucrose produce glucose n
A-glucose
B-fructose
C-lactose
D-galactose

15-our blood normally contains how much glucose
A-0.8%
B-0.08%
C-0.008%
D-none

16-which of the following will give red colour with iodine
A-cellulose
B-starch
C-glycogen
D-amylose

17-lipids r not soluble in which of the following
A-ether
B-alcohol
C-chloroform
D-water

18-how many carbon atoms are present in fatty acids
A-3-7
B-4-30
C-25-35
D-2-25

19-neutral lipids are also called as
A-diglyceride
B-triglyceride
C-terpenoids
D-isopernoids

20-what is the most imprtant organic compound of a cell
A-carbohydrate
B-water
C-lipids
D-proteins

21-which of the following type of RNA is most abundant in a cell
A-mRNA
B-tRNA
C-rRNA
D-complementey RNA

22-what no. of nucleoides will code for a protein of 3000 amino acids
A-3000
B-9000
C-12000
D-1000

23-RNA is synthesized by DNA in a process called
A-replication
B-transformation
C-transcription
D-translation

24-the 1st microbe to have genome cmpletely sequenced
A-E.Coli
B-clostridium tetanu
C-heamophilus influenza
D-thermus aquaticus

25-it is a polynucleotide chain
A-ATP
B-RNA
C-waX
D-base

26-which of the following is a fibrous protein
A-spider web
B-fibrin
C-keratin
D-all of these

27-secondary structure of protein is a characteristic of
A-globular proteins
B-fibrous proteins
C-ellipsoidal proteins
D-oblong proteins

28-who was the 1st scientist to determine the sequence of amino acids in a protein molecule
A-F Meischer
B-F Sanger
C-Murice wilkins
D-P.A leven

29-all are fibrous proteins except
A-silk
B-keratin
C-fibrin
D-enzyme

30-globular proteins differ frm fibrous proteins in
A-having amino acids
B-their repeating units are joined by peptide bonds
C-being soluble in aqueous medium
D-being non-crystalline

Correct ans=c,c,a,b,c,b,c,b,b,b,c,c,a,b,b,c,d,b,b,d,c,b,c,c,b,d,b,b,d,c

Random MCQs

Past Paper of Nust (2013)
Choose the correct Spellings
a) Divrgenet
b) Divergent
c) Devergent
d) Diveregent

my frndz are waiting .,,,me,,,,,the mall
a) at and on
b) for and on
c) at and in
d) for and at
e) to and at

If two bodies of different masses, initially at rest,
are acted upon by the same force for the same
time, then the both bodies acquire the same
A. velocity
B. momentum
C. acceleration
D. kinetic energy

If we go towards centr of earth, value of g,....
A. Increases
B. Decreases
C. No chAnge
D. None

The heat required to raise the temperature of body
by 1 K is called
A. specific heat
B. thermal capacity
C. water equivalent
D. None of the above

The 2nd most abundant hydrocarbon in natural
gas is 
(a) methane
(b) nitrogen 
(c) hydrogen
(d) Ethane

catalysts increase rate of 
A. forward reaction
B.backward reaction 
C. none 
D. both a and b

D0wn's syndr0me is c0mm0nly kn0wns as a. n0n
disjuncti0n 
b. m0ngolism
c. cr0ssing 0ver
d.schizophrenia

In the British Engineering system, the unit of power
is:
(a) Meter.foot/second
(b) Kilometer.foot/second
(c) Foot.meter/second
(d) Joule.pound/second
(e) Foot.pound/second

Q.Average lifespan of erythrocytes is
(A) 2 months
(B) 3 months
(C) 4 months
(D) 5-6months

Natural occuring elements are ?
92
102
98
108

When a system absorbs energy, the sign of delta H
is:
a. Negative
b. Positive
c. Neither positive nor negative
d. Continuously changing
e. None of above

Higher altitudes have
a. High temperatures
b. Less rain
c. High atmospheric pressure
d. Increased wind velocity
e. All of above

English MCQs

Choose the correct option
(1)A-He went to the fair and had enjoyed.
B-He went to the fair and enjoyed himself.
C-He went to the fair and did enjoy.
D-He went to a fair n enjoyed.

(2)a-If he would had come,I would have helped him .
B-If he would has come,I would have helped him.
C-If he had come,I would have helped him.
D-If he would have come,I had helped him.

(3)A-she agreed to my proposal.
B-She agreed upon my proposal
C-she agreed against my proposal
D-she ha agreed with my proposal

(4)A-he is brave than all man
B-he is braver than any other man
C-he is braver than many man
D-he is braver than many men

(5)a-She told me to stop working
B-she had told me to stop to work
C-she has told me to stop to work
D-she told me to stop working

Correct ans=B,c,a,b,a

Preposition Questions

Correct use ov preposition 
1-his house is adorned________paintings.
A-by
B-with 
C-of
D-in

2-He did not agree______you in this matter.
A-along
B-to
C-with
D-on

3-He did not agree _______my proposal.
A-to
B-with
C-on
D-upon

4-He aimed_______the bird Nd fired
A-over
B-on
C-around
D-at

5-He is not alive ______the danger he is in
A-about
B-to
C-for
D-of

6-The pen is to write________
A-by
B-to
C-across
D-with

7-this is a very good house to live_______
A-upon
B-in
C-on
D-into

8-I always do my papers_______blue ink
A-with
B-by
C-through
D-in

9-my boss is angry______me
A-upon
B-on
C-to
D-with

10-the teacher was angry ______ur foolish remark
A-at
B-to
C-with
D-for

correct ans=B,c,a,d,b,d,b,d,d,a

The Nucleus

The cell nucleus contains most of the cell's
genetic material, organized as multiple long
linear DNA molecules in complex with a large
variety of proteins, such as histones, to form
chromosomes. The genes within these
chromosomes are the cell's nuclear genome.
The function of the nucleus is to maintain the
integrity of these genes and to control the
activities of the cell by regulating gene
expression — the nucleus is therefore the
control center of the cell. The main structures
making up the nucleus are the nuclear
envelope, a double membrane that encloses
the entire organelle and separates its contents
from the cellular cytoplasm, and the nuclear
lamina, a meshwork within the nucleus that
adds mechanical support, much like the
cytoskeleton supports the cell as a whole.
Because the nuclear membrane is
impermeable to most molecules, nuclear pores
are required to allow movement of molecules
across the envelope. These pores cross both
of the membranes, providing a channel that
allows free movement of small molecules and
ions. The movement of larger molecules such
as proteins is carefully controlled, and
requires active transport regulated by carrier
proteins. Nuclear transport is crucial to cell
function, as movement through the pores is
required for both gene expression and
chromosomal maintenance. Although the
interior of the nucleus does not contain any
membrane-bound subcompartments, its
contents are not uniform, and a number of
subnuclear bodies exist, made up of unique
proteins, RNA molecules, and particular parts
of the chromosomes. The best known of these
is the nucleolus, which is mainly involved in
the assembly of ribosomes. After being
produced in the nucleolus, ribosomes are
exported to the cytoplasm where they
translate mRNA during the synthesis of
proteins.

Author: Mishii

Physics Key Ponits

PHYSICS MCAT some basic keypoints you
have to know.
• Mho : conductivity
• Henry: inductance
• Maxwell: magnetic flux
• Becquerel: radioactivity
• Kilo watt hour: power
• Coulomb: unit of electrical charge
• Weber: unit of magnetic flux
• Tesla: unit of magnetic flux density
• Siemen: unit of conductance
• Rutherford: unit of rate of decay of
radioactive material
• Faraday: unit of electric charge
• Angstrom: unit of length, used especially to
specify radiation wavelengths
• Parsec: unit of astronomical length
• Degree: unit of measurement of an angle
• Steradian: Unit of solid angle measurement
• Dyne is a unit of Force.
• SI unit of pressure is Pascal.
• Curie is a unit of : radioactivity
• Pascal Sound Pressure
• Torr Pressure
• Curie Intensity of radioactivity
• Angstrom Unit of length
• Light year The distance light travels in a
year
• Dioptre Lens refractive power
• Horse power Unit of Power
• Radian Unit of angular measure
• Candela Unit of luminous intensity
• Mole unit of amount of substance
• What is measured in units called phon-
Sound 192
• What is measured in grains – four grains to
a carat- Pearls
• Unit of electromotive force in Volt.
• What is the SI unit of illumination -Lux
• Gross is equal to 12 dozen.
• Ozone is measured in percent age.
• An object traveling at Mach 2 is traveling
approximately at 500 mph.(chk)
• What is measured on the Gay-Lussac
scale: Alcohol strength
• Chronometer is used to measure… time
• Anemometer is used to measure… Wind
Speed
• The clusec is the unit measuring the power
of what Vacuum pumps
• One million cycles per second is called
Megahertz.
• 0.200 grams are equal to one carat. •
Voltammeter is an electrolytic cell for
conducting electrolytic dissociation of
electrolyte.
• 8 furlongs make one mile.
• A billion contain 1000 million. It has 9
zeroes. Similarly a trillion has 12 zeroes,a
quadrillion 15 zeroes,a quintillion 18 zeroes
and a decillion 33 zeroes.
• One inch is equal to 2.5400 cms and one
mile is equal to 1.6093 kms.
• One micron is equal to One-thousandth of a
millimeter.
• 2.47105 acres is equal to what SI unit-
Hectare
• What word describes one tenth of a nautical
mile-Cable
• What is measured on the Torro scale -
Tornados

Author: Mishii

How to find pH and pOH

To find pH/pOH :

pH= -log [H+]

pOH = 14-pH

or

pOH = -log[pOH]

pH=14-pOH

log 1 =0
log 2=0.3
log 3=0.47