EOY Y7 Revision biology

Question 1

What is the role for alveoli

Answer 1

To carry out gas exchange

Question 2

where does respiration take place

Answer 2

Mitochondria

Question 3

What is the length of the menstrual cycle

Answer 3

28 days

Question 4

what is the placenta

Answer 4

where the oxygen and nurtrience for the foetus is

Question 5

What is the umbilical cord

Answer 5

The cord that carries the oxygen and nutrience from the placenta to the developing foetus

Question 6

What connects bones to bones in a joint

Answer 6

Ligaments

Question 7

What connects muscles to bones in a joint

Answer 7

tendons

Question 8

What is the thing on the end of a bone to reduce friction

Answer 8

articular cartilage

Question 9

What stops the articular cartilage from rubbing and wearing away

Answer 9

Synovial fluid

Question 10

Name 3 types of joints

Answer 10

Hinge, pivot, ball and socket

Question 11

What holds up the anther

Answer 11

the filament

Question 12

What produces pollen

Answer 12

the anther

Question 13

What is the male gamete of a plant

Answer 13

the anther

Question 14

What is the female gamete of a plant

Answer 14

stigma

Question 15

What is the female gamete of a human

Answer 15

egg cell

Question 16

what is the male gamete of a human

Answer 16

sperm cell

Question 17

Why do wind pollinated plants have lots of pollen

Answer 17

to increase the change of fertilisation

Question 18

Why do insect pollinated plants have vibrant petals and nectar

Answer 18

To attract pollinators

Question 19

What is the condition where the end of bones become inflamed because of friction

Answer 19

Arthritis

Question 20

What is the cause of puberty

Answer 20

Hormones

Question 21

What are antagonistic muscles

Answer 21

A pair of muscles that do the opposite to work together

Question 22

What is a flagellum

Answer 22

A tail like thing for movement

Question 23

How do we inhale

Answer 23

The diaphragm flattens increasing the lung volume reducing the pressure and allowing air in

Question 24

How do we exhale

Answer 24

The diaphragm contracts reducing the lung volume increasing the pressure and forcing gas out of the body

Question 25

What is respiration

Answer 25

The process in which gas is exchanged in the alveolus with oxygen entering the red blood cells and carbon dioxide leaving the lungs and out the body

Question 26

Where dies photosynthesis take place

Answer 26

Chloroplast

Question 27

What controls what leaves and enters a cell

Answer 27

The cell membrane

Question 28

What is the most outer layer of a animal cell

Answer 28

Cell membrane

Question 29

What is the most outer layer of the plant cell

Answer 29

Cell wall

Question 30

What is diffusion

Answer 30

When particles move from an area of low concentration to an area of low concentration

Question 31

What is the job of the vacuole

Answer 31

to store cell sap

Question 32

What is the job of the nucleus

Answer 32

To store the dna

Question 33

What is the job of the ribysomes

Answer 33

To create amino acids used for protein

Question 34

What is the job of the cytoplasm

Answer 34

Carry out chemical reactions

Question 35

What is the role of the Stigma

Answer 35

To grab the pollen from pollenation

Question 36

What tube does the pollen go down too reach the ovule and ovary

Answer 36

Style

Question 37

What are the leaves on the stem called

Answer 37

Sepals

Question 38

How many sperm cells complete fertilisation

Answer 38

1

Question 39

How many sperm cells are released in ejaculation

Answer 39

Millions

Question 40

Why do sperm cells have flagellums

Answer 40

To swim towards the egg cell

Question 41

What are the stems of the alveolus called

Answer 41

bronchioles

Question 42

What is the sweet substance in plants that pollinators are attracted to

Answer 42

nectar