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science revision- biology > reproductive system. > Flashcards

reproductive system. Flashcards

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1
Q

what is the function of the nucleus?

A

it controls the cell and contains genetic information (DNA

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2
Q

what is the function of the cell membrane?

A

it controls what enters and leaves the cell

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3
Q

what is the function of the cytoplasm?

A

chemical reactions happen in the cell

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4
Q

what is the function of the mitochondria?

A

produces aerobic respiration and is the powerhouse for the cell

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5
Q

what is the function of the cell wall?

A

it keeps the structure of the cell

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6
Q

what is the function of the chloroplast?

A

it contains chlorophyll which starts the process of photosynthesis.

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7
Q

what is the function of the vacuole?

A

it has all the nutrients for the cell contains cell sap

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8
Q

what is the function of the chromisomal DNA?

A

its like the nucleus

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9
Q

what is the function of the plasmid?

A

contains genetic information and causes variation in prokaryotic cells only normally has antibiotic resistance.

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10
Q

what is the function of the flagella

A

it helps to move around

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11
Q

what is the function of the cytoplasm?

A

causes chemical reactions

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12
Q

what is the function of the cell wall?

A

it keeps the structure of the cell

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13
Q

what changes do boys go through during puberty?

A

their voice deepens
the body becomes more muscular
voice breaks
testes start to produce sperm cells

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14
Q

what changes do girls go through during puberty?

A

breasts develop
hips get wider
menstruation
ovaries start to produce eggs

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15
Q

what changes do both girls and boys go through during puberty?

A

grow taller
Pubic hair grows on face and body
sexual organs start to grow and develop

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16
Q

what is a unicellular cell?

A

an organism that has only one cell.

17
Q

what is a multicellular cell?

A

an organism that has many cells/more than one cell

18
Q

what is a hormone?

A

hormones are chemical substances that are produced in our bodies that act as a messenger, communicating between our different cells and organs

19
Q

what are the female sex hormones called?

A

oestrogen and progesteron

20
Q

what is the male sex hormone called?

A

testosterone.

21
Q

when does puberty start for the genders?

A

girls - 8-14

boys - 12-15 (not all people start from these ages)

22
Q

what is menopause?

A

when you hit the stage where you have no eggs left to make a child

23
Q

the female reproductive system =

A

fallopian tube, ovaries, uterus, cervix, vagina

24
Q

the male reproductive system =

A

bladder, rectum, prostate gland, penis, urethra, scrotum, testes, sperm duct

25
Q

what is the purpose of the male and female reproductive organs?

A

they produce gametes and are involved in sexual intercourse.

26
Q

the uterus is…

A

where a fertilized egg can grow

science revision- biology (2 decks)

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