Efficient transport and exchange

Question 1

What is needed for aerobic respiration

Answer 1

oxygen and glucose

Question 2

what is needed to make new substances in the body

Answer 2

Dissolved food molecules and mineral ions

Question 3

Examples of dissolved food molecules

Answer 3

glucose and amino acids

Question 4

How do substances move in and out of your body

Answer 4

through diffusion in a blood vessel

Question 5

features of surfaces through which particles move through

Answer 5

thin so less distance for particles to diffuse
large surface area fore more space for diffusion

Question 6

How are waste substances removed from your body

Answer 6

C02 removed from lungs
Urea removed from Kidney’s

Question 7

Surface area: volume ration equation

Answer 7

Surface area/volume

Question 8

Why do we need surface area:volume ratio

Answer 8

the larger surface area, the most particles can diffuse
however if volume of cell is too big it cannot fill up with needed food substances in time

Question 9

Features of alveoli and capillary to help with gas exchange

Answer 9

both are one cell thick so diffusion occurs quicker and blood keeps flowing to maintain concentration gradient