cell Flashcards

1
Q

colourless plastid involved in storage of fats

A

oleoplast

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2
Q

microtubules are responsible for

A

formattion of spindle and flagella

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3
Q

the organelle devoid of DNA but capable of dupliation is

A

centriole

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4
Q

three morphological forms of golgi complex

A

lamellae
tubules
vesicles

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5
Q

starch storing plastid

A

leucoplast

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6
Q

majority of the chloroplast of green plants are found in the

A

mesophyll cells

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7
Q

protein is stored in

A

aleuroplast

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8
Q

functional unit of chloroplast

A

quantasomes

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9
Q

peroxisomes are rich in
a] catalytic enzymes
b]oxidative enzymes

A

oxidative enzymes

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10
Q

which structure is present in chromosome
[a] centromere
[b] centrosome

A

centromere

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11
Q

nucleus syntheizes which type of RNA

A

r RNA

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12
Q

percentage of lipid and protein present in cell membrane of human RBC

A

40 percent lipids and 52 percentt proteins

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13
Q

organelle involved in modification and routing of newly synthesised proteins to their destination

A

endoplasmic reticulum

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14
Q

number of membranes separating intrathylakoid space from cytoplasm is

A

3

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15
Q

stack of lamella in a plastid

A

granum

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16
Q

detoxification of lipid soluble drugs and other harmful compound in er is carried out by cytochrome ________

17
Q

What is the diameter of erythrocyte

A

7 micrometer

18
Q

“living beings are made up of cells”

A

Schleiden and Schwann

19
Q

“cell is the basic structure of living things”

A

Robert Hooke

20
Q

Mesosomes are functionally similar to

A

mitochondria

21
Q

mRNA + ribosome =

A

polyribosome / polysome

22
Q

gas vacuoles are found in

A

cyanobacteria and puple and green photosynthetic bacteria

23
Q

muramic acid is present in

A

cell wall of bacteria and blue green algae

24
Q

cell wall of prokaryotes is made up of

A

mucopeptide

25
what is plasmid
small circular dna outside the genomic dna in bacteria
26
structures responsible for lipid synthesis
spherosomes and smooth ER
27
oils and fats are stored in
elaioplast
28
digrammatic representation of chromosomes
idiogram
29
spindle formation is done by centrosome or centriole or centromere
centriole[two centrioles make one centromere]
30
hydrolytic enzyme are abudantly found in
lysosomes
31
amyloplast stores
carbs
32
centrioles are made of
9 evenly spaced perpheral fibrils of tubulin protein
33
in 70 S , S stands for
sedimentation coefficient and called Svedberg unit
34
the Singer's model of plasma membrane differs from Robertson's model in the
arrangement of protein
35
L shaped chromosome
submetacentric
36
what helps to maintain flluidity of plasma membrane
phospholipids [cholesterol]
37
ankyrin and spectrin are
peripheral proteins