bio c3

Question 1

root system absorbs

Answer 1

water and minerals.

Question 2

what do plants capture

Answer 2

light energy

Question 3

what do plants convert light energy into

Answer 3

chemcial energy

Question 4

what are roots

Answer 4

anchors the plant and absorbs minerals and water. Often stores carbohydrates

Question 5

shoot system absorbs

Answer 5

CO2 and light

Question 6

what are stems

Answer 6

support the leaves and reproductive structures

Question 7

what are leaves

Answer 7

the main photosynthetic organ of the plant

Question 8

what is dermal tissue

Answer 8

is the plants protective covering

Question 9

what is vascular tissue

Answer 9

carries out long distance transport of materials between the root and shoot system

Question 10

what is ground tissue

Answer 10

Ground tissue in plants is the tissue that fills the space between the vascular tissue and used for storage, photosynthesis and support.

Question 11

what is a cuticle

Answer 11

a waxy substance that coats the epidermal cells.help prevent water loss.non polar

Question 12

upper epidermis

Answer 12

one cell thick and tightly packed. protects the leaf aginst any physical damage and pathogens.

Question 13

palisade cells

Answer 13

one or more layers of tightly packed, lonng and narrow cells with many chloroplast. Site of most of the leaf’s photosynthesis

Question 14

vascular bundle

Answer 14

a series of tubes that are visible as leaf veins. contains xylem and phloem that are tranpsort fluids.

Question 15

xylem

Answer 15

dead cells that transport water and minerals upwards from the roots to the leaves.

Question 16

phloem

Answer 16

alive cells that transports sugars produced by the leaves to various part of the plant

Question 17

lower epidermis

Answer 17

one cell thick and tightly packed. protects the leaf aginst any physical damage and pathogens.

Question 18

spongy tissue cells

Answer 18

loosly packed cells containing chloroplast. carries our photosyntheisis and the air spaces between cells allows for gas transport.

Question 19

stomata

Answer 19

small opening in the epidermal layer that can open or close. Allows gasses in and out of the leaf. Has 2 guard cells that control the diamter and shape of the stomata

Question 20

root pressure pushed the xylem sap

Answer 20

up

Question 21

how is water pulled up using transpiration

Answer 21

water is pulled up the xylem tissue to replace the water that is lost

Question 22

what is cohesion

Answer 22

is the tendency of water molecules to stick to other water molecules due to hydrogen bonding.

Question 23

what is adhesion

Answer 23

is the tendency of water molecules to stick to surfaces.(Hydrophilic)

Question 24

where do most gas exchanges occur

Answer 24

stomata

Question 25

what are lenticles

Answer 25

are lens shaped opened in the bark of woody plants that enable gas exchange

Question 26

what is transpiration

Answer 26

loss of water vapour from the leaves by diffusion and evaporation

Question 27

where do most water get out from

Answer 27

through the stomata

Question 28

what happens when a guard cell gains water

Answer 28

turgid and opens up

Question 29

what happens when guard cells loose water

Answer 29

flacid and closing

Question 30

are stomatas open during the day or night

Answer 30

day

Question 31

what is a tropism

Answer 31

is any growth responce taht results in plant organs curving towards or away from stimuli

Question 32

positive tropism is growth

Answer 32

towards the stimuli

Question 33

negitive tropism is growth

Answer 33

away from the stimuli

Question 34

what is phototropism

Answer 34

growth towards or away from light

Question 35

what is growth toward light called

Answer 35

positive phototropism

Question 36

what is the darwin and darwin experiment

Answer 36

They observed the bending of seedlings towards sunlight. They used tips and tranparent tips.

Question 37

what was the conclusion for Darwin and Darwin experiment

Answer 37

the tip of the seedling detcts light and sends a signal down to the stem to control growth

Question 38

what type of signal control stem growth

Answer 38

mobile chemical

Question 39

what is the boysen jenson expiriment conclusion

Answer 39

the signal is a mobile chemical because it passes through the gelatin block but not through the mica block

Question 40

frits went experiment conclusion

Answer 40

The chemical messenger that makes the cells on the darker side longer is called auxin.

Question 40

what is gravitropism

Answer 40

is the plants repsonce to gravity