cells Flashcards

1
Q

all living things are composed of

A

one or more cells

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2
Q

cells can be

A

eukaryotic or prokaryotic

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3
Q

major difference eukaryotes have. and prokaryotic don’t

A

nucleus

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4
Q

prokaryotes are basically

A

bacteria and their cell are smaller than eukaryotic

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5
Q

cell membrane

A

selectively permeable to ions and organic molecule and control movement oof substance

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6
Q

cell wall

A

outside cell membrane and use as protection and structure

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7
Q

nucleus

A

contains most cell genetic material

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8
Q

nucleolus

A

involved in assembly of ribosome

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9
Q

nuclear pores

A

allows the free passage of small water soluble molecules and prevent large molecules

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10
Q

chromatin

A

diffuse DNA protein complex that will condense during cell division to form chromosomes

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11
Q

nuclear envelope

A

separates the cells genetic material from the surrounding cytoplasm

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12
Q

ribosomes

A

function in protein synthesis

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13
Q

R endoplasmic retuculum

A

synthesized proteins enter to undergo glycosylation attachment of carbohydrates to them to make glycoproteins

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14
Q

S endoplasmic reticulum

A

doesn’t have ribosomes attached and synthesize lipids

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15
Q

Golgi

A

process and package macromolecules

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16
Q

lysosomes

A

produced by Golgi that contains hydrolytic digestive enzymes

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17
Q

prexisomes

A

break down of very long chain fatty acids through oxidation

18
Q

chroloplasts

A

found in plants that allow them to make their own food

19
Q

mitochondria

A

power house of cell

20
Q

cytoskeleton

A

network of protein fibers that determine the shape with out cell walls and provides movement structural support and framework

21
Q

microtubules

A

hollow tubes assembled from sub units made from the protein tubulin

22
Q

small vacuoles

23
Q

large central vacuole

24
Q

substance enter cells either

A

passively or actively

25
passive transport
doesn’t require energy
26
active transport
use ATP or energy
27
diffusion
movement of material from high concentration to an are of low concentration
28
osmosis
diffusion of water across a selectively permeable membrane
29
hypotonic solution in animal
lysed (high concentration of of solute in the cell
30
hypotonic in plant
turgid or normal (high solute concentration in the cell
31
isotonic animal
normal (equal concentration
32
isotonic in plant
flaccid (equal concentration
33
hypertonic in animal
shriveled (more concentration of solute outside the cell
34
hypertonic in plant
plasmolyzed (more solute concentration out of the cell
35
facilitated transport (diffusion)
allows diffusion of large membrane insoluble compounds like sugar particles move from high to low concentration
36
facilitated transport
substance pass through channel proteins like water through aquaporins
37
Active transport
requires specific membrane transport proteins ( sodium potassium pump
38
40% of cell energy used for
active transport
39
endocytosis
into cell membrane pass through plasma membrane
40
exocytosis
out of the cell through plasma membrane
41
phagocytosis
involves engulfing of large particles by the cell
42
pinocytosis
involves the engulfing of liquids or very small particles