Plant transport and plant tissues

Question 1

Why do plants have a transport system

Answer 1

This is because transport in plants is essential as they’re too large for materials to diffuse in and out

Question 2

What organisms can rely on diffusion

Answer 2

very small organisms to rely on diffusion because
-they have a large surface area to volume ratio
-short diffusion distance
-lower demand for nutrients

Question 3

How do plants produce glucose

Answer 3

by the process of photosynthesis in the leaves and the stem

Question 4

Why is glucose needed and what’s it needed for

Answer 4

all living cells within the plant for respiration

Question 5

Other than glucose, what do plants need

Answer 5

a supply of amino acids and minerals which are transported throughout the plant

Question 6

Name the differences between Xylem and Phloem

Answer 6

-xylem cells are dead and phloem are living
-xylem cells are waterproof
-phloem process is translocation and xylem is transpiration

Question 7

lignin

Answer 7

strengthens
and waterproof

Question 8

sink

Answer 8

where sucrose is removed from phloem e.g root

Question 9

describe the structure and function of the stomata

Answer 9

-tiny pores found on the underside of the leaf and each stoma is formed between two guard cells

Question 10

Name the substances that can diffuse through the stomata

Answer 10

-oxygen (diffuses out of the leaf)
-carbon dioxide (diffuses into the leaf)
-water vapour (diffuses out the leaf)

Question 11

What are the stomata open and closed by

Answer 11

guard cells

Question 12

What is the name given to guard cells that absorb water by osmosis

Answer 12

turgid

Question 13

what is the name for guard cells loosing water by osmosis

Answer 13

flaccid
causes stomata to narrow and close

Question 14

Definition of transpiration

Answer 14

the loss of water vapour out through the stomata