biology revision

Question 1

only found in a plant cell

Answer 1

cell wall

Question 2

not a type of blood vessel

Answer 2

alveoli

Question 3

what the vaccine is made from

Answer 3

dead or inactive forms of the pathogen

Question 4

is a product of photosyinthesis

Answer 4

oxygen

Question 5

chemical formula for glucose

Answer 5

c 6 h12 o6

Question 6

When a person exercises, a number of things change in their body.

Select which one of these remains unaffected by exercise

Answer 6

volume of blood

Question 7

Some people have a condition in which their pancreas fails to produce enough insulin.

Which of these conditions is this a description of?

Answer 7

type 1 of diabetes

Question 8

Humans react to changes in their surroundings.

Which sequence of events correctly describes the body’s response?

Answer 8

Stimulus → receptor → coordinator → effector → response

Question 9

Some characteristics in living things are controlled by a single gene. These genes have different forms, or alleles.

The alleles can be dominant or recessive.

Select which one of the following statements is true.

Answer 9

The recessive allele is only expressed if two recessive alleles are inherited

Question 10

Communities of organisms are affected by both biotic and abiotic factors.

Select which one of these is a biotic factor.

Answer 10

Arrival of new predators