cells

Question 1

the nuclear envelope is a derivative of

Answer 1

RER

Question 2

in germinating seeds, fatty acids are degraded exclusively in the

Answer 2

glyoxysomes

Question 3

the telomeres of eukaryatic chromosomes consist of short sequences of

Answer 3

guanine rich repeats

Question 4

colchine is an inhibitory chemical which

Answer 4

prevents the spindle formation in mitosis

Question 5

names of schleiden and schwaan are associated w

Answer 5

cell theory 1839

Question 6

experiments on acetabularia by hammering proved the role of

Answer 6

nucleus in heredity
involved exchanging rhizoid and stalk

Question 7

ribosomes were discovered by

Answer 7

palade 1955
23 mm / 230 A diameter

Question 8

diameter of microtubules

Answer 8

24 nm

Question 9

what are intermediate filaments made of and diameter

Answer 9

10 nm
keratin in nails
form the cytoskeleton

Question 10

diameter of microfilaments

Answer 10

3-6 nm

Question 11

diameter of ribosomes

Answer 11

150- 250 Armstrongs

Question 12

at what Mg conc do two ribsomal subunit join

Answer 12

0.001 M
conc increases 10 times to form a dimer

Question 13

when does duplication of 1 pair of centrioles occur in cell cycle?

Answer 13

G2 phase

Question 14

how many chromosomes do mice have

Answer 14

40

Question 15

how many chormosomes do corn have

Answer 15

20

Question 16

how many chromsomes do sugarcane have

Answer 16

80

Question 17

how many chromosomes do frogs have

Answer 17

26

Question 18

peripheral vs central part of the cell

Answer 18

gel : peripheral
sol : center

Question 19

steroid hormones are synthesized by which organized by which organelle

Answer 19

SER

Question 20

which of the following is involved in the conversion of fats to carbs by oxidation of fats

Answer 20

glyoxisomes

Question 21

mag power of electron microscope compared to eye is

Answer 21

250,000

Question 22

the human eye could differentiate object which r how far apart?

Answer 22

1 mm

Question 23

size of eukayotic cell

Answer 23

10-100 nm

Question 24

opt ph of arginase

Answer 24

9.7

Question 25

opt ph of pancreatic enzyme

Answer 25

9

Question 26

opt ph of catalase

Answer 26

7.6

Question 27

opt ph of chymtrypsin

Answer 27

7-8