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Entry Level Assessment

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

The following Sugar is known as fruit sugar

a)

Albumin

b)

Galactose

c)

Lactose

d)

Fructose

2.

The following is known as the reducing sugar

a)

D-Glucose

b)

Sucrose

c)

D-Galactose

d)

None

3.

----------------- bond is present between amino acids

a)

Hydrogen bond

b)

Glycosidic bond

c)

Peptide bond

d)

None

4.

"Steroisomers" have same structural formula and different--------------

a)

spatial configuration

b)

symmetry

c)

Molecular weight

d)

None

5.

Which of the following is rich in Vitamin A

a)

Cod liver oil

b)

rice bran

c)

Egg

d)

Vegetable oils

6.

Glycolysis occurs in --------------

a)

Mitochondria

b)

Chloroplast

c)

Cytoplasm

d)

None

7.

What is the enzyme required to convert fumarate into L-Malate?

a)

Succinase

b)

Fumarase

c)

Aconitase

d)

Malate dehydrogenase

8.

Identify the pictures

a)

structure of lipids

b)

structure of Glucose

c)

Primary and secondary structure of protein

d)

None

9.

Identify the structures

a)

Amino acids

b)

Lipids

c)

Nucleotides

d)

Cis - Trans isomers of Fatty acids

10.

DNA and RNA differ in which of the following

a)

Sugars only

b)

Sugar and purines

c)

Sugar and pyrimidine

d)

Sugar and phosphate

11.

Identify the amino acids given in picture

a)

Histidine, Lysine and Arginine

b)

Phenyl alanine, Tyrosine and Tryptophan

c)

Glycine, alanine and Proline

d)

None

12.

Proteins are building blocks of

a)

Nucleotides

b)

glycolipids

c)

Cholesterol

d)

Amino acids

13.

------------------ is precursor for synthesising steroid hormones

a)

MUFAs

b)

PUFAs

c)

Cholesterol

d)

None

14.

The net gain of ATP in Glycolysis

a)

4

b)

8

c)

2

d)

6

15.

a fatty acid with one or more carbon-carbon double bonds in its tail

a)

unsaturated fat (rigid)

b)

saturated fat (flexible)

c)

trans fat

16.

Organic compounds: ______-based molecules

a)

carbon

b)

oxygen

c)

nitrogen

d)

hydrogen

17.

Characteristics of carbon: How many covalent bonds can it form?

a)

5

b)

4

c)

3

d)

2

18.

polymers (larger molecules) formed by joining monomers (smaller molecules)

a)

polysaccharides

b)

monosaccharides

c)

macromolecules

19.

reactions used to acquire and use energy

a)

metabolism

b)

chemical reaction

c)

dehydration reaction

d)

enzymes

20.

an organic molecule that speeds up a reaction without being changed by it

a)

enzymes

b)

metabolism

c)

polymer

21.

links monomers together to form polymers

a)

dehydration reaction

b)

hydrolysis reaction

c)

chemical reaction

d)

metabolism

22.

breaks polymers into smaller molecules

a)

hydrolysis reaction

b)

dehydration reaction

c)

metabolism

d)

chemical reaction

23.

What does N-terminus refer to?

a)

The first amino acid with the abbreviation 'N' in the protein

b)

The end of a protein with a free carboxylic acid group

c)

A protein chain

d)

The end of a protein with a free amine group

24.

The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.

a)

3' ; 5'

b)

top ; bottom

c)

hydrogen ; polynucleotide

d)

5' ; 3'

25.

The monomers used to synthesize proteins are called:

a)

nucleotides

b)

amino acids

c)

fatty acids

d)

sugars

e)

glycerol

26.

A nucleoside contains

a)

a pentose sugar

b)

a purine or pyrimidine base

c)

one or more phosphate group

d)

all of these

e)

a pentose sugar and a base but not phosphate group

27.

The molecule shown below is

a)

a purine base

b)

a pyrimidine base

c)

a sugar

d)

a fatty acid

e)

an amino acid

28.

The molecule shown below is

a)

a purine base

b)

a pyrimidine base

c)

a sugar

d)

a fatty acid

e)

an amino acid

29.

The molecule shown below is

a)

dATP

b)

dADP

c)

dAMP

d)

a polysaccharide

e)

a sugar

30.

What type of chemical bond is illustrated below?

a)

a sugar-sugar bond

b)

a glycerol-fatty acid bond

c)

a peptide bond

d)

a phosphate-phosphate bond

e)

a hydrogen bond

31.

Which of the following functions is not associated with proteins?

a)

contraction

b)

providing structural material

c)

enzymes

d)

specific binding

e)

information storage

32.

Which of the following levels of protein structure is often stabilized by S-S bonds?

a)

primary structure

b)

secondary structure

c)

tertiary structure

d)

quaternary structure

e)

both tertiary and quaternary structures

33.

What is the highest level of structure represented below? (Note: in this model, different polypeptide chains are represented by different colors)

a)

primary structure

b)

alpha helix

c)

beta sheet

d)

tertiary structure

e)

quaternary structure

34.
Trace the precursor metabolite which was NOT produced through Pentose phosphate pathway, Glycolysis and Krebs cycle
a)
Glucose
b)
sedoheptulose 7 Phosphate
c)
Triose phosphate
d)
Acetyl CoA
35.

Find out the CORRECT statement(s) related to metabolism

(i) it comprises of anabolism & catabolism

(ii) anabolism is also called fueling reaction

(iii) catabolism is called biosynthetic reactions

(iv) break down of sugar can be catabolism & synthesis of polysaccharide is anabolism

a)

(i)

b)

(i), (ii) & (iii)

c)

(i) & (iv)

d)

(ii) & (iii)

36.

On living cell, the important constituent that makes up the volume of the cell is

a)

Protein

b)

water

c)

nucleic acids

d)

carbohydrates

37.
Lipids of the cell are abundant in
a)
cell wall
b)
cell membrane
c)
lipololysaccharides
d)
glycogen
38.
Complex carbohydrates break down into which of the following?
a)
enzymes
b)
simple sugars
c)
amino acids
d)
ATP
39.
Which of the follwing elements can be found in all living and previously living orgaisms?
a)
helium
b)
sulfur
c)
carbon
d)
nitrogen
40.
What are the largest carbohydrates called?
a)
monosaccarides
b)
oligosaccarides
c)
disaccarides
d)
polysaccarides
41.
Lipids serve which function in a cell?
a)
store information
b)
store energy
c)
breakdown wastes
d)
join with substrates
42.
What are proteins made of ?
a)
long chains of hydrocarbons
b)
lipids
c)
amino acids
d)
salts
43.
What term best describes enzymes?
a)
accelerate
b)
retard
c)
decay
d)
dawdle
44.
The part of the enzyme that the substrate bonds to is called the _____.
a)
active site
b)
activation energy
c)
bond site
d)
peptide bond
45.
Which one is NOT a function for Carbohydrates?
a)
Short Term Energy
b)
Cell walls
c)
Digestion
d)
Plant Structure
46.
What is the structure of a Nucleic Acid?
a)
Rings
b)
Heads and Tails
c)
Double Helix
d)
No defined structure
47.
Which two bio molecules have only Carbon, Hydrogen, and Oxygen?
a)
Carbs/Nucleic Acids
b)
Lipids/Carbs
c)
Proteins/Nucleic Acids
d)
Carbs/Proteins
48.
Which bio molecule has Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur?
a)
Carbs
b)
Lipids
c)
Nucleic acids
d)
Proteins
49.

Aside from DNA being double-stranded and RNA being single-stranded, which of these is another difference between DNA and RNA?

a)

For Phosphate, DNA has PO4 while RNA has PO3

b)

For sugar, DNA has deoxyribose while RNA has ribose

c)

DNA is a nucleic acid while RNA is a protein

d)

DNA's building blocks are nucleotides while RNA's are amino acids.

50.

Produces the energy a cell needs to carry out its functions

a)

mitochondria

b)

ER

c)

Golgi bodies

d)

vacuoles

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