1.
Which would be the best chromatographic technique to separate a protein that
binds strongly to its substrate?
a) Gel filtration
b) Affinity chromatography
c) Cation exchange chromatogrphy
d) Anion exchange chromatography
Answer: b
2.
Trypsin is a
a) Exopeptidase b)
Endopeotidases
c) Carboxy peptidase d) Phosphotransferase
Answer: c
3.
The slope of the Lineweaver-Burk plot is given by
a) Km/Vmax b)
1/Vmax
c) 1/Km d) none of the above
Answer: a
4.
Enzyme that coagulate milk?
a) Rennet b)
Casein
c) Lactase d) Catalase
Answer: a
5.
The enzyme used to dissolve blood clots
a) Streptokinase b) Glucose isomerase
c) Phosphatse d) None of the above
Answer:a
6.
The cofactor of an enzyme is
a) Inorganic ions b) Organic molecules
c) Both a and b d) None of the above
Answer: a
7.
A system is a key or classification based on
a) Leaf b) Flower
c) Fruit d) a particular organ
Answer: d
8.
The evolutionary history of a taxon is called its
a) Phylogeny b) Ontogeny
c) Evolution d) Homology
Answer: a
9.
The most promising developments in formulating a phylogeny for the entire tree
of life
come
today from
a) Microbiology b)
Molecular biology
c) Mycology d) None of the above
Answer: b
10.
Herbaria provide the comparative material that is essential for studies in
a) Molecular Biology b)
Taxonomy
c) Cell Biology d) Physiology
Answer: b
11.
Binomal nomenclature was introduced in the year
a) 1753
b) 1707
c) 1778
d) 1725
Answer: a
12.
Which among the following are endogenous in origin?
a) Lateral roots b) Adventitious roots
c) Leaves d) Flowers
Answer: a
13. Among the following which characters
are not associated with the monocots?
a) Adventitious root system b)
Parellel venation
c) Stelar arrangement in a ring d) Trimerous flowers
Answer: c
14.
Open collateral endarch vascular bundles are found in
a) Dicot stem b) Monocot stem
c) Dicot root d)
Monocot root
Answer: b
15.
Secondary growth in woody dicots and many nonwoody dicots originates from their
a) Lateral meristems b) Apical meristem
c) Intercalary meristem d) Cork cambium
Answer: a
16.
Vascular bundles in leaf are
a) Exarch b) Endarch
c) Measrch d) Polyarch
Answer: c
17.
Recombinant DNA Technology was first proposed by
a) Peter Lobban b) James Watson
c) Dale Kaiser d) Charles Darwin
Answer: a
18. The commercial cultivation of
transgenic crops began in
a) 1983 b) 1995
c) 2000 d) 2002
Answer: b
19.
Plantibodies are being produced by
a) Peas b) Beans
c) Banana d) Papaya
Answer: c
20.
The soil bacterium which induces crown gall in dicotyledonous plants is
a) Rhizobacterium b) Agrobacteriun
c) Caulobacterium d)
Corynebacterium
Answer: b
21.
The product of light reactions of photosynthesis is
a) FAD b) NADPH
c) FMN d) NAD
Answer: b
22.
The metabolic function of fermentation is to:
a) oxidize NADH to NAD+ so that
glycolysis can continue in the absense of oxygen.
b) reduce NADH so that more ATP can be
produced by the electron transport chain
c) produce lactate during aerobic
exercises
d) oxidize pyruvate, thus releasing more
energy.
Answer: a
23.
Which compound will produce the most ATP when oxidized
a) acetyl CoA b) glucose
c) pyruvate d) fructose biphosphate
Answer: b
24.
Why is glycolysys considered one of the first metabolic pathways to have
evolved?
a) it relies on fermentation, which is a
characteristic of the archaea and bacteria
b) it is found only in prokaryotes,
whereas eukaryotes use their mitochondira to produce
ATP.
c) it produces much less ATP than does
the electron transport chain and chemiosmosis
d) it relies totally on enzymes that are
produced by free ribosomes, and bacteria have only
free ribosomes and no bound ribosomes.
Answer: b
25.
Covalent bond formation between two atoms takes place by
a) Transfer of electron from one atom to
other
b) One side sharing of electrons
c) Electron sharing by both interacting
atom
d) affinity between two
Answer: c
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