cells (human reproduction) Flashcards

(37 cards)

1
Q

a type of cell that has no true nucleus, only has a single chromosome

A

prokaryotic

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2
Q

eukaryotic

A

type of cells with true nucleus, nucleus is membrane-bound and has multiple chromatin

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3
Q

smallest cell

A

mycoplasma (mycoplasma gallicepticum), 0.0001 mm

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4
Q

common unit of measure in cytology

A

micrometer (1 micrometer = 1/1,000,000 meter)

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5
Q

how do you get amoebiasis?

A

consumption of food/water contaminated by infected feces
hand hygiene
sexual transmission in men & men

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6
Q

E. histolytica (entamoeba histolytica)

A

inflammation in lining of intes. — into your bloodstream, to liver
(RUQ abdominal pain, skin & retina yellowing, enlarged liver)

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7
Q

amoebiasis symp

A

fatigue, abdominal cramps, diarrhea, excess gas, rectal pain during bowel movement, weight loss

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8
Q

amoebiasis treatment

A

meds to kill parasite
fluid intake to prevent dehydration in diarrhea

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9
Q

cell theory

A

made of cells
basic unit
pre-existing
hereditary
chem composition
energy flow

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10
Q

skin of the cell,
entry & exit
separates from external envi.
phospholipid bilayer (proteins & carbs)

A

cell/plasma membrane

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11
Q

has genetic material

A

nucleus

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12
Q

made of genetic material

A

chromosomes

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13
Q

contains organelles, where cellular activities take place

A

cytoplasm

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14
Q

double membrane of fats & proteins

A

nuclear membrane

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15
Q

colloidal solution enclosed by nuclear mem

A

nucleoplasm

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16
Q

structure for protein synthesis

17
Q

pores in nucleus

A

in nuclear envelope

18
Q

protein factory, in cytoplasm and er

19
Q

membrane bound vesicles, temporarily stores proteins, ships off materials via vesicles from cell

A

golgi apparatus/body

20
Q

sack like, single membrane, strong digestive enzyme, hydrolase (to speed up digestion of proteins, carbs, nuc acid, fats

21
Q

made of cellulose, filtering system

22
Q

food factory of plant cell, double membrane, chlorophyll (absorbs sunlight to synthesize carbs from co2 & water

23
Q

proper pressure in plant cells, provide structure & support for growing plant

A

central vacuole in plant cells

24
Q

hair-like, for cell movement,

A

cilia (numerous, short); flagella (few, long)

25
division of cytoplasm production of daughter cells forms cell plate (in plant cell) & cleavage furrow (in animal cell)
cytokinesis
26
somatic cell division two daughter cells involves karyokinesis, followed by cytokinesis PMAT
mitosis
27
asters are formed
early prophase
28
centrioles move apart & chromosomes as long threads
early prophase
29
centrioles organize spindle fibers, sisterchromatids, formed with centromere
middle prophase
30
nuclear mem disappeared, centromeres at each end, spindle fibers attached onto chromosomes at the equator
meta
31
sex cell division, occurs within gametogenesis diploid cell production (4 daughter cells) —- 1 & —- 2
meiosis
32
spermatogenesis
formation & maturation of sperms
33
oogenesis
formation and maturation of egg cells
34
PMAT 1, reduction division reduction of chomros no. to haploid
meiosis 1
35
longest duration of meiosis
prophase 1
36
period of growth similar to interphase, though chomos. do not duplicate chromos in duplicated form
interkinesis
37
separation of two chromatids in chromos similar to events in mitosis
meiosis II