OBJECTIVE TYPE
QUESTIONS FOR COMPETITIVE EXAMINATIONS, 2016
General Studies Paper
APPSC
BIOLOGY QUESTIONS – 1
1)
Sigmoid growth curve shows which of the following ?
a)
It shows the geometric growth It is a S
shaped curve on graph
(b)
Arithmetic growth
(c)
Population growth
(d)
Industrial growth
Ans
: a
2)Which
of the following are the main groups of Plant Growth Rate ?
a)
Auxins
b)
Gibberellins
c)
Cytokinins
d)
All the above
Ans
: d
4)
Auxins promote which of the following in the plants ?
a)
Flowering
b)
Respiration
c)
Oxidation
d)
None of these
Ans
: a
5) Auxin
was first isolated from which of the following ?
a) Human
urine
b) Soils
c)
Mountains
d) Rivers
Ans : a
6)
What is Photoperiodism ?
a)Flowering
in certain plants depends on a combination of light and dark exposures and also
on the relative duration of light and dark periods. This response of plants is
called photoperiodism
b)
Taking photos
c)
Printing of photos
d)
None of these
Ans
: a
7)
which of the following induces immediate stomatal closure in leaves ?
a)
Abscisic Acid
b)
Auxins
c)
Carbon dioxide
d)
None of these
Ans
: a
8)
Sugar is the most common substrate of fermentation. Which of the following are
the common fermentation products?
a)
Ethanol,
b)lactic
acid
c)
hydrogen
d)
All the above
9)
Through which of the following places in plants, exchange of gases take place ?
a)
Lenticels and Stomata in leaves, which serve as openings
b)
dried wood
c)
dried leaves
d)
None of these
Ans
: a
10)
What are the causes of cancer ?
a)
Ionising radiations like X-rays and gamma rays and non-ionizing radiations like
UV cause DNA damage leading to neoplastic transformation.
b)
The chemical carcinogens present
in
tobacco smoke have been identified as a major cause of lung cancer
c)
Cancer causing viruses called oncogenic viruses have genes called viral
oncogenes.
d)
All the above
Ans
: d
11)
Prokaryotic cells are represented by which of the following ?
a)
Bacteria
b)
Blue-green algae
c)
Mycoplasma and Pleuro Pneumonia Like Organisms ( PPLO)
d)
All the above
Ans
: d
12)What
is the speciality of the prokaryotic cells ?
a)
They are generally smaller and multiply more rapidly than the eukaryotic cells
b)
They are bigger in size
c)
They can easily change the shape
d)
None of these
Ans
: a
13)
What are the four basic shapes of bacteria ?
a)Bacillus
(rod like)
b)
Coccus (spherical)
c)
Vibrio (Comma shape) and Spirillum (spiral)
d)
All the above
Ans
: d
14)Chewing
is an example of which type of Digestion ?
a)Mechanical
digestion
b)Chemical
digestion
c)Thorough
digestion
d)
None of these
Ans
: a
15)Which
of the following is the correct route of digestion ?
a)
Mouth – Pharynx – Esophagus – Stomach – Small intestine – Large intestine –
Anus
b)
Moutn – Esophagus – Pharynx – Small intestine – stomach – Anus
c)
Mouth – Small intestine – Stomach – Pharynx – anus
d)
None of these
Ans
: a
16)Where
the digestion is completed and the final
products of digestion such as glucose, fructose, fatty acids, glycerol and amino
acids are absorbed through the mucosa into the blood stream and lymph ?
a)Small
intestines
b)
Esophagus
c)
Mouth
d)
None of these
Ans
: a
17)
Increased blood pressure may be caused by excess section of _______
a)
thyroxin
b)testosterone
c)estradiol
d)adrenalin
Ans
: d
18)Insulin
has 51 amino acids in two polypeptide chains which are linked by
a)
one sulphide bond
b)
one disulphide bond
c)two
disulphide bonds
d)
three disulphide bonds
Ans
:c
19)
Which one of the following vitamins contains a metal atom ?
a)
Riboflavin
b)
Vitamin B12
c)
Vitamin A
d)
Vitamin B6
Ans
: b
20)
Kwashiorkor is caused by the deficiency of
a)
vitamins
b)
harmones
c)
amino acids
d)
essential amino acids
21)
Protein which acts as a hormone is
a)
casein
b)oxytocin
c)trypsin
d)
keratin
Ans
: b
22)
Which of the following hormones contains iodine ?
a)
Adrenalin
b)Testosterone
c)
Thyroxine
d)
Insulin
Ans
: c
23)
Which of the following is derived from sugar cane ?
a)
Sucrose
b)
Maltose
c)
Lactose
d)
Cellulose
Ans
: a
24)
Which of the following nutrients are increased on sprouting the pulses such as
sprouted black gram or Bengal gram ?
a)
Vitamin A
b)
Vitamin B
c)
Vitamin C
d)
Iron
Ans
: d
25)
The metal ion present in the human body in greater percentage is
a)
Calcium
b)
Sodium
c)
Iron
d)
Potassium
Ans
: a
