Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

N5 biology revision > Reproduction and Growth > Flashcards

Reproduction and Growth Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

what is a species?

A

a group of organisms that can interbreed and produce fertile offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

why does variation occur?

A

because all offspring are different

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

why is variation important?

A

for the survival of the species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how many chromosomes does each body cell contain?

A

46 chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how many sets of chromosomesdoes each body cell have?

A

2 sets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what process is new body cells made by?

A

mitosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is thef irst stage of mitosis?

A

parent cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

second stage?

A

chromosomes become visible in the nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

third stage?

A

chromosomes line up at the equator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

fourth stage?

A

chromatids are pulled apart ro either pole by spindal fibres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

fifth stage?

A

parent cell divides to produce two new cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how many chromosomes is in a human gamete?

A

23 chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is mitosis the process of?

A

cell division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is tranaported from foetus to mother?

A

carbon dioxides and wastes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what can harm foetul development?

A

alcohol, tobacco, radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

where are chromosomes found?

A

in the nucleus of a cell

17
Q

what are chromosmes made from?

A

dna

18
Q

how many sets of chromosomes does a zygote contain?

A

two sets

19
Q

what deos the zygote divide into?

A

a ball of cells called a embryo and implants into the wall of the uterus

20
Q

what does the embryo then develop into?

A

a foetus

21
Q

what does the placenta allow for the mothet and foetus?

A

exchange of materials between mother and foetus blood

22
Q

what is transported from mother to foetus?

A

glucose and oxygen

23
Q

how many chromosomes does a human sex cell contain?

A

23 chromosomes

24
Q

what another word for sex cells?

A

gametes

25
Q

how many sets of chromosomes does each sex cell contain?

A

1 set

26
Q

what process is new sex cells made by?

A

meiosis

27
Q

what is the male gamete?

A

sperm

28
Q

where is sperm produced?

A

in the testes

29
Q

what is the female gamete?

A

egg

30
Q

where are eggs produced?

A

in the ovary

31
Q

where is the site of fertilisation?

A

in the oviduct

32
Q

what is thecell produced after fertilisation called?

A

zygote

N5 biology revision (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions