Happy Wednesday! Bellwork: February 25

In your own words DEFINE the word “Tropism”.

Give examples of what the following four tropisms may look like in a plant’s “real life”

(remember the video from Monday)Gravitropism (+/-) , Hydrotropism,

Phototropism, Thigmotropism

Grade Info

• No tutorials today!• I will take work until Friday

afternoon• You’ll have a plant test Monday• The plant system interaction homework

will count for next grading term

Anticipation Thoughts…(true or false?)

1. Thigmotropism is a plant’s response to gravity.

2. Plants breathe3. Plants need oxygen to survive4. Singing helps plants grow5. Plants produce glucose during

photosynthesis.

Cellular Energy

Essential Question: How are photosynthesis and cellular

respiration related?

How is energy transformed in living organisms?

• Energy :the ability to do work

• Most energy comes from the sun in the form of light.

• All energy that is not

used by organisms leaves the

Earth in the form of heat.

• Adenosine triphosphate (ATP) is the chemical that cells use to store and release energy.

• The energy in ATP is stored in the bonds between the elements.

How do plants make their own food?

• To perform photosynthesis, plants need:1. sunlight (energy source)2. water3. carbon dioxide

These are called the reactants.

• After photosynthesis, the plant has produced:1. Glucose (molecule that the plant uses to

produce energy)2. Oxygen (given off through the leaves)

These are called the products.

Draw this picture

SUNLIGHT

The equation of photosynthesis is:

6CO2 + 6H2O + sunlight C6H1206 + 6O2

carbon dioxide + water + energy glucose + oxygen

Talk to your partner:Where do plants take in carbon dioxide?

Where do plants take in water?

Photosynthesis occurs in an organelle in the leaves.

Chloroplasts: organelle where photosynthesis takes place

Chlorophyll: pigment in chloroplasts, makes plants green

How do animals get energy for living?

• Cellular respiration: the process that releases energy (ATP) by breaking down glucose.

• Cellular respiration occurs in the mitochondria of plant and animal cells.

• Cellular respiration makes 36 ATP molecules

• The remaining energy is lost as heat.

Mitochondria

Talk to you partner:

If humans do not make our own food in photosynthesis, how do we

get nutrients to perform cellular respiration?

The formula for cellular respiration is:

6O2 + C6H12O6 6CO2 + 6H2O + Energy

oxygen + glucose carbon dioxide + water + ATP

Cellular respiration requires oxygen and glucose and gives off carbon dioxide,

water, and energy.

Draw this

Draw this

Debrief:

Explain the relationship between cellular respiration and photosynthesis in terms of matter.

What about energy?

Photosynthesis vs Cellular Respiration Foldable

Photosynthesis Cellular Respiration

Draw and color a picture of the

chloroplast (plant)

Draw and color a picture of the mitochondria

Photosynthesis Definition

Cellular Respiration Definition

AnalogyPhotosynthesis is like………AND PICTURE illustrating your analogy

AnalogyCell Respiration is like………..AND PICTURE illustrating your analogy

Photosynthesis Equation (words and symbols)

Cellular Respiration Equation (words

and symbols)

Venn Diagram

FRONT INSIDE

BACK

Let’s Race!• I’m giving you a set of manipulatives.• When I say “products of photosynthesis” for

example. The first table to correctly build it earns a point. EACH person must be correct!

• Table that earns the most points wins (at life)!!