Chapter 9 ) Bio

Question 1

What does the xylem transport

Answer 1

It transports water

Question 2

What does phelom transport

Answer 2

It transports sugars

Question 3

What does the guard cells do

Answer 3

Guard cell help close and open the door for things to get in/ out

Question 4

what does the epidermal cell do

Answer 4

its the protective layer on the leaf

Question 5

what does the vascular tissue do

Answer 5

transports fluid through leaf ( water phloem xylem

Question 6

what does the spongy tissue do

Answer 6

interchange of gases (CO 2)

Question 7

what does the palisade tissues do

Answer 7

cells that are tightly packed / narrow to improve efficiency preform photoscythisis

Question 8

what does the stomata do

Answer 8

it is the small opening on epidermal layer that allows gasses to enter / exit

Question 9

what gas goes in the cell and out of the cell

Answer 9

carbon dioxide goes in and oxygen goes out

Question 10

what are small indications in the bark on a tree called

Answer 10

lenticels and they lead for exchange of gasses (co2 and o2)

Question 11

what are the 2 types of xylem transportation

Answer 11

push and pull

Question 12

what are the 2 water properties in transportation

Answer 12

adhesion and cohesion

Question 13

what does adhesion mean

Answer 13

water attracted to another substance

Question 14

what does cohesion mean

Answer 14

water attracted to water

Question 15

how does push xylem transport work

Answer 15

-pressure in root pushes water
-active transport brings in minerals and sap increases
-water goes to concentration by osmosis
-water makes root have pressure

Question 16

how does pull xylem transport work

Answer 16

-water vapor exits leaf leaving dryness
-water diffuses out of cell into fluid between cells
-cohesive forces between water cause more water to be pulled up

Question 17

how does phloem sugar transport work

Answer 17

• sugar / other minerals enter from active transport
  -concentration increases so water enters to even it
  -cells get pressure and swell pholem sap
  -fluid pressure forces sap through pores

Question 18

what direction does phloem sap flow

Answer 18

down concentration gradient

Question 19

how do guard cells regulate the opening

Answer 19

by tuger pressure ( water pressure)

Question 20

what do the stomata and guard cell have as a main function

Answer 20

they can do gas exchange

Question 21

what are reactants of photosynthesis

Answer 21

carbon dioxide and water

Question 22

how can guard cells open the cell (each step)

Answer 22

active transport to move in which result
Water moves in by osmosis
which results in the guard cell swelling and opening the stomata.

Question 23

The loss of water through stomata and lenticels is known as

Answer 23

transpiration

Question 24

In xylem pull transport what causes the pull

Answer 24

transpiration pull caused by evaporation of water from leaves

Question 25

if the tip of a plant is covered with an opaque cap and there’s light on one side what will happen

Answer 25

it will grow straight up

Question 26

what is positive gravitropism

Answer 26

it is when the root of the plant is growing in the direction of gravity

Question 27

what does the cuticle do

Answer 27

it protects the cell against drought and traps water inside

Question 28

where are both the xylem and phloem on the leaf cell

Answer 28

they are both in the vascular bundles (phloem bottom, xylem top)

Question 29

what did darwins experiment conclude/ what was it

Answer 29

he concluded plants lead to light
4 plants, one cut leaves, one had foil over top, one had foil around it and one had nothing