random

Question 1

which part of the blood helps it to clot if the skin is cut

Answer 1

platelets

Question 2

your stomach contains which type of acid

Answer 2

hydrochloridric

Question 3

how are infectious diseases transmitted

Answer 3

air particles
contaminated food and water
surfaces

Question 4

which one of these is not likely to be a pathogen

Answer 4

mosquito

Question 5

which of these would not be a feature of a good vaccine

Answer 5

unlikely to produce her immunity

Question 6

antibodies have to be _______to kill pathogens

Answer 6

specific

Question 7

why is the term used to describe you not being able to become ill with a particular pathogen

Answer 7

immune

Question 8

any foreign molecule that is recognise by and able to elicit a specific response from a lymph is called an…

Answer 8

antigen

Question 9

any foreign molecule that is recognise by and able to elicit a specific response from a lymph is called an…

Answer 9

antigen

Question 10

A Y shaped protein molecule which recognises specific foreign antigens

Answer 10

antibody

Question 11

how does a vaccination work

Answer 11

infection someone with weakened or inactive pathogens

Question 12

primary response

Answer 12

when a person becomes infected with the disease for the first time and responds by producing antibodies

Question 13

do antibiotics work on viruses

Answer 13

true

Question 14

what is a “chromosome”

Answer 14

line strand of DNA coiled up into a structure

Question 15

what shape is dna

Answer 15

double helix

Question 16

how many chromosome does a human cell usually contain

Answer 16

46

Question 17

dna is found within all the cells of humans except

Answer 17

red blood cells

Question 18

there are two parents and genetic information is passed on from both of these to the offspring

Answer 18

sexual reproduction

Question 19

how many daughter cells are formed during mitosis

Answer 19

2 identical

Question 20

mitosis is important for

Answer 20

growth, repair and asexual reproduction

Question 21

during which phase of mitosis does dna replicate

Answer 21

interphase

Question 22

uncontrollable or runaway cell division results in

Answer 22

cancer

Question 23

which phase of mitosis do the chromosomes condense and become visible

Answer 23

prophase

Question 24

during cytokines the cell

Answer 24

divides into two daughter cells

Question 25

order of mitosis is

Answer 25

interphase
prophase
metaphase
anaphase
telophase + cytokinesis

Question 26

mitosis results in

Answer 26

four haploid daughter cells

Question 27

evolution

Answer 27

gradual changing of a species over the time

Question 28

which individuals are most likely to survive to reproduce

Answer 28

those that are well suited to their environment

Question 29

what is adaptation

Answer 29

a feature of an organism that allows it to survive in its environment

Question 30

why are fossils used to prove evolution happened

Answer 30

they provide evidence of different species for a long time ago

Question 31

what is genetic mutation

Answer 31

a random change in organisms dna

Question 32

why is survival of the fittest associated with natural selection

Answer 32

within a population individuals who have a selective advantage will survive while others dies out

Question 33

some genes give characteristics that mean an organism is ———- suited to living in an environment

Answer 33

better r

Question 34

genetic variation is controlled by

Answer 34

the genes inherited from your parents

Question 35

the part of an enzyme that’s the substrate interacts with is called the

Answer 35

active site

Question 36

enzymes are effected by

Answer 36

temperature
concentration
ph

Question 37

What’s a independent variable

Answer 37

A variable that’s is BEING CHANGED

Question 38

Control variable

Answer 38

Must kept the same in order to make results affected

Question 39

Dependant variable

Answer 39

Variable TESTED/MESURED during experiment