active transport

Question 1

what is active transport

Answer 1

some substances need to be absorbed against a concentration gradient, i.e. from a lower to a higher concentration

Question 2

features of root hair cells

Answer 2

plant has a large surface for absorbing water and mineral ions from the soil

Question 3

what do plants need mineral ions for

Answer 3

healthy growth
the concentration of minerals is usually higher in the root hair cells than in the soil around them

Question 4

what does active transport allow the plant to do

Answer 4

allows the plant to absorb minerals from a very dilute solution, against a concentration gradient. but active transport need energy from respiration

Question 4

where does active transport happen in humans

Answer 4

taking glucose from the gut and from the kidney tubes

Question 5

how does active transport prevent us from starving

Answer 5

Active transport helps cells rapidly absorb nutrients like glucose, amino acids, and ions. For example, in the gut, active transport moves glucose from a lower concentration in the gut to a higher concentration in the blood. This process allows the body to absorb glucose for respiration.

Question 6

what is the purpose of active transport in the gut

Answer 6

it allows nutrients such as glucose to move from a lower concentration in the gut to a higher concentration in the blood