GCSE COMBINED SCIENCE HIGHER: BIOLOGY 2019 PAPER 1

Notes:

Question 1)

1.1  B

1.2   right atrium 

1.3   foxgloves

1.4  x = 2800 /52

= 53.846153

answer: 54

1.5

Question 2)

2.1 amylase

2.2  partially pumping testing - small intestine

Water in a test tube - blood

2.3  Starch - Iodine solution

Sugar -  Benedicts solution

2.4 enzymes had not started to work

2.5  enzyme digested

not all the starch was broken down

2.6 sugar molecules formed are small enough to pass though tubing 

Question 3)

3.1  opened and closed the tap

3.2 air bubble moves further

so resolution is improved

3.3  66/5 x 0.8

answer: 10.56

3.4

3.5

3.6   no photosynthesis

the stomata will close as  no carbon dioxide needed

no transpiration 

Question 4 )

Question 5)

my answers: