A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of 290 mm at 300 k. The
vapour pressure of propyl alcohol is 200 mm. If the mole fraction of ethyl alcohol is 0.6, its vapour
pressure (in mm) at the same temperature will be
vapour pressure of propyl alcohol is 200 mm. If the mole fraction of ethyl alcohol is 0.6, its vapour
pressure (in mm) at the same temperature will be
Anonymous Quiz
41%
350
32%
300
19%
700
9%
360
The mass of glucose that should be dissolved in 50 g of water in order to produce the same
lowering of vapour pressure as is produced by dissolving 1 g of urea in the same quantity of water
is
lowering of vapour pressure as is produced by dissolving 1 g of urea in the same quantity of water
is
Anonymous Quiz
16%
1 g
53%
3 g
20%
6 g
12%
18 g
An aqueous solution of methanol in water has vapour pressure
Anonymous Quiz
9%
Equal to that of water
15%
Equal to that of methanol
48%
More than that of water
28%
less than that of water
An ideal solution is that which
Anonymous Quiz
14%
Shows positive deviation from Raoultβs law
5%
Shows negative deviation from Raoultβs law
9%
Has no connection with Raoultβs law
73%
Obeys Raoultβs law
The best material for study of structure of cell membrane is
Anonymous Quiz
67%
RBC of human
4%
RBC of frog
4%
liver cell of rat
24%
cheek cell of human
Which of the following will determine the shape of the cells and provides a strong
structural support to prevent the bacterium from bursting or collapsing?
structural support to prevent the bacterium from bursting or collapsing?
Anonymous Quiz
2%
Plasmids
85%
Cell wall
8%
Mesosome
5%
Cell membrane
Which one of the following is not considered as part of the endomembrane
system?
system?
Anonymous Quiz
5%
Golgi complex
87%
Peroxisome
5%
Vacuole
3%
Lysosome
Which of the following cell organelles were discovered after the introduction of
electron microscope?
electron microscope?
Anonymous Quiz
15%
Mitochondria
8%
Endoplasmic reticulum
10%
Ribosomes
67%
Both (b) and (c)
_____________
is the important site of formation of glycoproteins and
golycolipids.
is the important site of formation of glycoproteins and
golycolipids.
Anonymous Quiz
11%
SER
5%
Lysosome
82%
Golgi apparatus
2%
Mitochondria
Which of the following statements about ribose is incorrect
Anonymous Quiz
13%
It is a polyhydroxy compound
20%
It is an aldehyde sugar
55%
It has six carbon atoms
13%
It exhibits optical activity
Carbohydrates are stored in human body as
Anonymous Quiz
11%
Glucose
72%
Glycogen
16%
Starch
1%
Fructose
Antibodies are
Anonymous Quiz
2%
Carbohydrate
26%
Globular protein
70%
Immunoglobulins
1%
Cellulose compounds
Which one of the following vitamins is watersoluble
Anonymous Quiz
74%
Vitamin B
8%
Vitamin E
13%
Vitamin K
6%
Vitamin A
In DNA, the complementary bases are
Anonymous Quiz
6%
Uracil and adenine; cytosine and guanine
82%
Adenine and thymine; guanine and cytosine
5%
Adenine and thymine; guanine and uracil
8%
Adenine and guanine; thymine and cytosine
In 'S' phase of the cell cycle
Anonymous Quiz
85%
Amount of DNA doubles in each cell.
9%
Amount of DNA remains same in each cell.
5%
Chromosome number is increased.
2%
Amount of DNA is reduced to half in each cell
In mitosis, nucleolus and nuclear membrane disappear at
Anonymous Quiz
5%
Interphase
72%
Prophase
11%
Metaphase
11%
Telophase
Best stage to observe shape, size and number of chromosomes is
_______
_______
Anonymous Quiz
4%
Interphase
89%
Metaphase
4%
Prophase
3%
Telophase
Cell plate grows from
Anonymous Quiz
19%
wall to centre
72%
Centre to walls
7%
One wall to another
2%
Simultaneously
Which of the vitamins given below is water soluble
Anonymous Quiz
79%
Vitamin C
8%
Vitamin D
5%
Vitamin E
8%
Vitamin K