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Cell : The Unit Of Life > Plastids > Flashcards

Plastids Flashcards

1
Q

three types of plastids

A

leucoplasts
chromoplasts
chloroplasts

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2
Q

which plastid is used to store nutrients and is colourless

A

leucoplast

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3
Q

three types of leucoplast

A

amyloplast
elaioplast
aleuroplast

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4
Q

amyloplast contains

A

starch

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5
Q

examples of amyloplast

A

potato tuber

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6
Q

elaioplast store

A

oils and fats

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7
Q

aleuroplast store

A

protein

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8
Q

colour of chromoplasts

A

yellow/orange/red

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9
Q

chromoplasts have their colour due to which pigment

A

carotenoid pigments like carotene, xanthophyll

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10
Q

colour of chloroplasts

A

green

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11
Q

which pigments do chloroplasts have

A

photosynthetic pigments like chlorophyll and carotenoids

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12
Q

which plastid takes part in synthesis of food

A

chloroplast

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13
Q

where are chloroplasts found

A

mesophyll cells of leaves

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14
Q

thickness and length of chloroplasts

A

thickness: 2 to 4 micrometers
length: 5 to 10 micrometers

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15
Q

number of chloroplasts in chlamydomonas

A

1 per cell

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16
Q

number of chloroplasts in mesophyll

A

20 to 40 per cell

17
Q

two membranes of chloroplasts

A

inner membrane
outer membrane

18
Q

which membrane of chloroplasts is less permeable

A

inner

19
Q

which membrane of chloroplasts has proteins including carrier proteins

A

inner membrane

20
Q

matrix of chloroplasts is called

A

stroma

21
Q

stroma of chloroplasts contains a large number of organised flattened membranous sacs called

A

thylakoids

22
Q

thylakoids are arranged in piles called

A

granum

23
Q

thylakoids of chloroplasts are connected by

A

stroma lamella

24
Q

matrix of thylakoids is called

A

lumen

25
Q

what does stroma of chloroplasts contain

A

enzymes for synthesis of carbohydrates and proteins
ds circular dna molecules
70 S ribosomes

Cell : The Unit Of Life (14 decks)

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