cell structure Flashcards

(46 cards)

1
Q

transmission electron microscope

A

beam of electrons instead of light sent through a thin layer of the specimen
shows the internal structure

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2
Q

cell membrane functions x2

A

control what enters and leaves the cell
provides support to the cell

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2
Q

scanning electron microscope

A

beam of electrons to see the surface view of the specimen

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3
Q

is the cell membrane permeable or semi permeable

A

semi permeable

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4
Q

what is the cell membrane composed of

A

phospholipids and proteins

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5
Q

nucleus

A

controls the centre of the cell

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5
Q

what is the function of nuclear pores

A

allow some materials to pass in and out

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5
Q

water ? phosphate head

A

loving

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6
Q

water ? lipid tail

A

hating

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7
Q

cytoplasm

A

jelly like substance that suspends cell organelles

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7
Q

what’s the difference between cytosol and cytoplasm

A

cytosol is the cytoplasm without organelles

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8
Q

ribosomes function

A

make protein

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8
Q

what do ribosomes consist of

A

RNA and proteins

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9
Q

cell wall is in only a plant or animal cell

A

plant

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10
Q

cell wall

A

provide strength and support
made up of cellulose

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11
Q

is the cell wall permeable or semi permeable

A

permeable

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12
Q

DNA is found on..

A

chromosomes

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12
Q

how many chromosomes do humans have

A

46 (23 pairs)

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13
Q

what is located on chromosomes and what are they

A

genes are units of inheritance

13
Q

what type of carbohydrate is cellulose and what structure is made up of cellulose

A

polysaccharide - cell wall (present in plant cells only)

14
Q

when chromosomes are not dividing, elongated and interwoven they are

15
Q

chromatin

A

when chromosomes are not dividing, elongated and interwoven

16
Q

mitochondria

A

supplies e nergy to cells

17
Q

chloroplasts

A

photosynthesis takes place here

18
chloroplast contains
chlorophyll
19
chlorophyll
a green pigment found in chloroplasts
19
plant cell experiment use stain why
single layer of onion iodine stains the nucleus
20
What does IAM stand for
Image of cell Actual size Magnification
20
how do you do the microscope calculations
IAM triangle
21
animal call experiment use stain why
cheek cell methylene blue stains the nucleus
22
vacuole
gives strength and shape stores water and sugar
23
prokaryotic x4
usually small single celled loop of DNA no organelles
23
is the vacuole larger in the plant or animal cell
plant
24
example of a prokaryotic cell
bacteria
25
example of eukaryotic cell
fungi, animals and plants
26
eukaryotic cell x4
larger more advanced have a nucleus organelles present
27
definition of a prokaryotic cell
do not have a nucleus or membrane bound organelles (mitochondria, chloroplast etc)
28
definition of a eukaryotic cell
has a nucleus or membrane bound organelles
29
draw a eukaryotic cell
30
draw a prokaryotic cell
31
draw a chloroplast
32
draw a plant cell
33
draw a nucleus
34
draw inactive mitochondria
35
draw active mitochondria
36
draw the structure of the cell membrane