plants lesson 7-8

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Cette leçon contient 22 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.

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- your homework (uploaded)

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Slide 1 - Diapositive

HW FOR TODAY:

HOW DID IT GO?

Slide 2 - Diapositive

root

stem

flower

leaf

fruit

Slide 3 - Question de remorquage

cell wall

cell membrane

nucleus

chloroplast

cytoplasm

vacuole

mitochondria

Slide 4 - Question de remorquage

anther

filament

petal

sepal

stigma

style

ovary

nectary

Slide 5 - Question de remorquage

food store

radicle

plumule

skin

micropyle

Slide 6 - Question de remorquage

Put the words in the correct order, starting with pollination.

pollination

growth

germination

fertilization

dispersal

Slide 7 - Question de remorquage

vein

cuticle

upper epidermiss

spongy

layer

stomata

lower epidermis

palisade

layer

Slide 8 - Question de remorquage

root cap

root tip

lateral root

primary root

root hairs

Slide 9 - Question de remorquage

The plant absorbs sunlight through the palisade cells.

The plant absorbs water and nutrients through the roothair cells.

The plant transports water and nutrients up through the xylem vessels.

The plant transports sugars and nutrients down through the phloem vessels.

The plant absorbs carbon dioxide through the stomata cells.

The plant releases oxygen through the stomata cells.

Slide 10 - Question de remorquage

Today:

- limiting factors

- enzymes

- geotropism

- phototropism

Slide 11 - Diapositive

LIMITING FACTORS:

CARBON DIOXIDE
WATER
SUNLIGHT
CORRECT TEMPRATURE FOR ENZYMES

Slide 12 - Diapositive

WHAT ARE ENZYMES?

ENZYMES ARE A CATALYST
THEY ARE LITTLE CHEMICAL FACTORIES THAT ARE USED TO SPEED UP CHEMICAL REACTIONS
OPTIMUM TEMPRATURE IS BETWEEN 25-40 DEGREES CELCIUS

Slide 13 - Diapositive

Slide 14 - Diapositive

Slide 15 - Diapositive

Slide 16 - Diapositive

CONTROLLING LIMITING FACTORS:

IN FIELDS THESE ARE DIFFICULT TO CONTROL
THIS IS WHY WE USE GREENHOUSES
MORE CONTROL OVER ALL THE LIMITING FACTORS;
ESPECIALLY TEMPRATURE AND WATER SUPPLY

Slide 17 - Diapositive

geotropism:

this is how gravity affects the growth of plants

roots are positively geotropic
plants are negatively geotropic

Slide 18 - Diapositive

phototropism:

this is how sunlight affects the growth of plants

leaves are positively phototropic
roots are negatively phototropic

Slide 19 - Diapositive

Auxin:

this is a plant hormone that stimulates growth in certain places of the plant.

Slide 20 - Diapositive

HW FOR NEXT TIME:

- continue your mindmap

- complete all formative

Slide 21 - Diapositive

Slide 22 - Vidéo