Download How plants use Glucose

Movement and use of plant
products .
How do plants transport and use the
products they make in photosynthesis?
Starter:
Take one of the test tubes on your desk, a straw and put
goggles on.
Blow GENTLY into the tube and explain what you observe.
1) What do you observe?
2) What have you tested for?
3) Where has this chemical come from?
Think, pair, share
• Group 1 : What reaction produces carbon
dioxide and where do the reactants come
from?
• Group 2: how can we link carbon dioxide to
plants?
• Group 3: how else do plants use glucose?
How do plants move and use the products the
make in photosynthesis?
Success criteria
• I can name the ways plants store glucose.
• I can explain why plants store glucose in other
forms.
• I can explain where the gases move into and
out of cells from.
How do plants move and use the products the
make in photosynthesis?
Call my Bluff
• Stomata
How do plants move and use the products the
make in photosynthesis?
Call my Bluff
• Stomata – an opening on the underside of the
leaf which allows carbon dioxide and oxygen to
move in and out of the plant.
• Stomata – a variety of tomato which is yellow in
colour.
• Stomata – a type of cell found in tropical plants
that allows them to produce sweet fruit.
How do plants move and use the products the
make in photosynthesis?
A quick Recap Clips
•
http://www.bbc.co.uk/learningzone/clips/the-products-of-photosynthesis/10606.html
•
http://www.youtube.com/watch?v=C1_uez5WX1o
Success criteria:
Write down 3 key points from the clip
about how the products of PHS are used.
How do plants move and use the products the
How do plants move and use the products
make in photosynthesis?
make inthe
photosynthesis?
Task 1 : Storing Glucose
• Look at these nuts and fruits.
• Think , pair , share.
• What do you notice about the nutrient
content.
• Where has it come from? Why is it important?
How do plants move and use the products the make in photosynthesis?
Write a science tweet about how
plants store glucose
• Key words – 10 points for a team which uses all
the words. 5 points for 3 words
•
•
•
•
•
•
Glucose
Fat
Starch
Nuts
Fruit
Sugar
Think, pair, share
• Why do we use these?
How do plants move and use the products the
make in photosynthesis?
Proteins – complete
• Proteins are important for plants to form ………,
leaves and ……….
• Plants do not eat so have to…….their own
nutrients.
• Plants get …………from the soil which are
dissolved in ………………. They turn these into
proteins in their cells.
WORDS
Chlorophyll, nitrates, water, make, roots
How do plants move and use the products the
make in photosynthesis?
Lets investigate – complete the
following
• Investigation: starch in fruit and veg.
Take samples of a range of fruit and veg.
Test for starch.
Make a conclusion (PEE)
P: Which of the samples you tested, had the most/
least starch?
E: How do you know?
E: Use the information provided to write an
explanation to support this.
How do plants move and use the products the make in photosynthesis?
Experiment 2 – leaves from light / dark
Conclusion: PEE
• Which of the samples had no starch? How do
you know?
• Use the information provided to write an
explanation to support this.
How do plants move and use the products the make in photosynthesis?
QUESTION REVEAL
Will you get an easy or a hard one?5 points / question. :
1
Which process
makes glucose in a
plant?
4
If you join lots of
glucose together,
what do you get?
7
What is 185 x 2
2
3
Where do plants
get water from?
What is the
equation for
photosynthesis?
5
6
What is the
equation for
respiration?
What does the
xylem vessel carry?
8
9
What is the green
substance found in
chloroplasts?
What does the
phloem vessel
carry?
How do plants move and use the products the make in photosynthesis?
Check point , which way will the particles move?
molecule
How do plants move and use the products the make in photosynthesis?
What is the inside of a leaf like?
How do plants move and use the products the make in photosynthesis?
Use the information to label and
annotate the diagram.
• Stomata are a hole through which gases can enter and leave the leaf.
Oxygen and carbon dioxide can freely move by diffusion through these
holes when they are open, however, their movement is halted when the
stomata are closed. This occurs when a plant has too little water and the
guard cells collapse in, pressing together and closing the hole. This
prevents the plant from becoming dehydrated and losing further water
through evaporation. There are two guard cells for each stomata.
• At the top and bottom of the leaf there is a waxy cuticle which prevents
the leaf from becoming burned or dehydrating.
• Below the cuticle is the upper epidermis and below this the palisade layer,
which contains long cells with a large amount of chloroplasts. Further
down again, is the spongy mesophyll which contains large air gaps in order
for the gases made and used, to move around the leaf. The palisade layer
and spongy mesophyll are collectively called the “mesophyll tissue.”
• Finally there is the vascular structure of the leaf which contains the xylem
and phloem vessels, which carry water and food respectively.
Getting Gases In – lets investigate
Aim: to observe and draw stomata.
Method:
1) Paint the underside of a leaf with clear nail
varnish.
2) Leave to dry
3) Peel off nail varnish
4) Observe under microscope and draw what you
see.
How do plants move and use the products the make in photosynthesis?
Check Point – what is the job of the
stomata?
1
2
To let
oxygen
out
To allow
gas
exchange
to occur.
3
To allow a
plant to
breathe.
4
For a
plant to
get water.
How do plants move and use the products the make in photosynthesis?
Task
• Draw a diagram of a plant with roots, stem, leaves, etc
• Use your knowledge, the computer tokens and the information, to
label and annotate the diagram.
• Key words
Stem
leaf
light energy
respiration
Carbon dioxide
glucose
guard cell,
root
root hair cell
photosynthesis
water
oxygen
phloem vessels
xylem vessel,
stomata,
starch,
sun
How do plants move and use the products the make in photosynthesis?
Key word bingo
•
•
•
•
•
•
•
•
Guard cell
Stomata
Chlorophyll
Chloroplast
Protein
Starch
Glucose
Fat
•
•
•
•
•
•
•
•
Oil
Nuts
Nitrates
Ions
Tubers
Potato
Respiration
Photosynthesis
Plenary
• Round the room