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A.Biology > REPRODUCTION > Flashcards

REPRODUCTION Flashcards

(43 cards)

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1
Q

Name the female parts of the flower

A

Stigma, style, ovary, ovule

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2
Q

Name the male parts of the flower

A

Anther, filament

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3
Q

Name the gender natural parts of the flower

A

Petals, sepal, stalk

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4
Q

LABEL THE PARTS OF A FLOWER

A

LABEL THE PARTS OF A FLOWER

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5
Q

Difference between insects and wind pollination PETALS

A

Insects
-brightly coloured
Wind
-dull colours

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6
Q

Difference between insects and wind pollination SCENT

A

Insect
-Yes
Wind
-no

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7
Q

Difference between insects and wind pollination NECTAR

A

Insects
-yes
Wind
-no

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8
Q

Difference between insects and wind pollination STIGMA

A

Insect
-inside the flower
wind
-can be feathered- bigger surface area to catch pollen

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9
Q

Difference between insects and wind pollination ANTHERS + FILAMENTS

A

Insect
-inside the flower
Wind
-outside the flower

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10
Q

Difference between insects and wind pollination AMOUNT OF POLLEN

A

Insect
-less pollen
Wind
-more pollen

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11
Q

Difference between insects and wind pollination TYPE OF POLLEN GRAIN

A

insect
-sticky pollen
Wind
-light weight pollen

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12
Q

Definition of pollination

A

The transfer of pollen from the anther of one flower to the stigma of another flower

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13
Q

What do seeds develop from

A

The fertilised egg

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14
Q

What 3 things is the seed made up of

A
  • the embryo
  • the food store
  • a seed coat
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15
Q

Conditions for germination

A

Water
Oxygen
Warmth

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16
Q

WOW water

A
  • swells the seed

- food store and feeds the embryo

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17
Q

WOW oxygen

A

Needed for respiration

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18
Q

WOW warmth

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A

Needed for proper growth

They won’t grow until spring/summer

19
Q

Sexual reproduction

FUSION, GAMETES, GAMETES, SEX CELLS, HALF

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A

FUSION of male and female GAMETES. GAMETES are SEX CELLS. These contain HALF the genetic information of the normal cell.
-Humans

20
Q

Asexual reproduction

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A
  • one parent
  • offspring are genetically identical
  • Aphias (insects) bacteria
21
Q

Asexual reproduction in plants

Study These Flashcards
A

Naturally- runners

Artificially- taking cutting

22
Q

§FEMALE- ovary

Study These Flashcards
A

Produces and releases the egg (female gamete)

23
Q

§FEMALE- oviduct

Study These Flashcards
A

Where the egg is released during ovulation. Where fertilisation occurs here

24
Q

§FEMALE- uterus

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A

Implantation of the embryo occurs here (were the egg sits after fertilisation)

25
§FEMALE- cervix
The ‘neck’ of the uterus will dilate during birth
26
§FEMALE- vagina
Sexual intercourse and birth
27
*MALE- sperm duct
Tube connecting the testes to the urethra
28
*MALE- bladder
Holds urine
29
*MALE- testes
Produces and releases sperm (male gamete)
30
*MALE- urethra
Tube along which urine and semen (containing sperm) will travel
31
*MALE- penis
Sexual intercourse
32
LABEL THE FEMALE AND MALE REPRODUCTIVE SYSTEMS
LABEL THE FEMALE AND MALE REPRODUCTIVE SYSTEMS
33
Menstrual cycle- 4 key points
- menstruation means period - starts in puberty - typically a 28 day cycle but can vary - controlled by oestrogen and progesterone
34
How long is the menstrual cycle
28 days
35
On what day is ovulation
Day 14
36
How long on average does a period last for
3-7 days
37
What does the Oestrogen do
- It thickens the uterus lining | - stimulates the ovulation at day 14
38
What happens the progesterone levels
- They are high after ovulation | - maintains the lining of the uterus
39
What happens when the progesterone levels fall
The lining breaking down
40
What happens during menstruation
Levels of both hormones are low
41
What does the placenta do during pregnancy
-exchange of materials between the blood of mother and embryo
42
Secondary sexual characteristics MALE
- facial hair - voice breaks - sperm production - increase sex drive - increased muscle growth
43
Secondary sexual characteristics FEMALE
- menstruation (period) - pubic hair - development of breasts - widening of hips - change in distribution of fat

A.Biology (11 decks)

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