1 Carbon: Transformations in Matter and Energy PowerPoint Presentation, PPT - DocSlides

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Carbon: Transformations in Matter and Energy

Environmental Literacy ProjectMichigan State University

Decomposers

UnitActivity 5.3: Explaining How Fungi Grow: Digestion and Biosynthesis

Unit Map

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You are here

Revisit your arguments

Think about what you know now that you didn’t know before. What have you learned?

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How do fungi use food as materials for growth?

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Food

Digestion

Materials

for growth:Biosynthesis

Energy:Cellular respiration

Step 1: Digestion

Constructing explanations

Consider the following as you construct your explanation:Evidence from the investigationWhat you learned from the molecular modeling or tracing activityThree Questions Handout

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Comparing Ideas with a Partner

Compare your explanations for each of the Three Questions.How are they alike?How are they different?Check your explanation with the middle- and right-hand columns of the Three Questions handout.Consider making revisions to your explanation based on your conversation with your partner.

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Digestion:

The

Matter Movement Question

How do molecules move to the location of the chemical change?

How

do molecules

move away from

the location of the chemical change?

Which

atoms and molecules move during fungal digestion?

Small organic molecules (monomers: amino acids, glucose, fatty acids, glycerol)Large organic molecules (polymers: proteins, carbs, fats)

How

do

small and large organic molecules move during fungal digestion?

Small organic molecules (monomers:

amino acids, glucose, fatty acids, glycerol)

Large organic

molecules (polymers: proteins, carbs, fats)

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Matter Movement

Do you have:a label showing large organic molecules or polymers (carbohydrates, proteins, fat/lipids) in the detritus?

Large Organic Molecules

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Matter Movement

Do you have:a label showing small organic molecules in the detritus and an arrow showing them entering the hyphal cell?

Large Organic Molecules

Small Organic Molecules

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Matter Movement

Do you have:an arrow showing small organic molecules moving through the hyphal cells?

Large Organic Molecules

Small Organic Molecules

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Matter Movement

Do you have:an arrow showing small organic molecules moving through the fungus?

Large Organic Molecules

Small Organic Molecules

Digestion:

The

Matter Change Question

What molecules are carbon atoms in before and after the chemical change?

Note: fungi produce and release molecules (enzymes) that can break large organic molecules up into small organic molecules.

What

other molecules are involved?

Matter Change

Name the chemical change that a fungus uses to break down food:Digestion

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Matter Change

What molecules are carbon atoms in before the chemical change?  Large organic molecules (or polymers: carbohydrates, fats/lipids, and proteins)What other molecules are needed?(Water)

What molecules are carbon atoms in after the chemical change?Small organic molecules (or monomers: amino acids, sugars, and fatty acids) What other molecules are produced? None

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Chemical

Change

Digestion:

The Energy Change Question

What

forms of energy are involved?

What

energy transformations

take place during the chemical change?

Energy Change

What forms of energy go into this chemical change?  Chemical Energy

What forms of energy come out of this chemical change? Chemical Energy 

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Energy Transformation

Telling the Whole Story

Question: How does a fungus get small organic molecules to its cells?Does your story include these parts?

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Matter movement:

Large

organic molecules make up the detritus outside of the fungus.

Matter

change:

The large organic molecules of the detritus are broken into small organic molecules by enzymes released by the fungus.

Energy

change:

The chemical energy of the C-C and C-H bonds in the large organic molecules remains in the C-C and C-H bonds of small organic molecules.

Matter movement:

The small organic molecules move into

the fungus’ hyphal cells. These molecules go to all parts of the fungus to be used for cellular respiration and biosynthesis.

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Food

Digestion

Materials

for growth:Biosynthesis

Energy:Cellular respiration

Step 2: Biosynthesis

Constructing explanations

Consider the following as you construct your explanation:Evidence from the investigationWhat you learned from the molecular modeling or tracing activityThree Questions Handout

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Comparing Ideas with a Partner

Compare your explanations for each of the Three Questions.How are they alike?How are they different?Check your explanation with the middle- and right-hand columns of the Three Questions handout.Consider making revisions to your explanation based on your conversation with your partner.

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Small organic molecules (monomers:

amino acids, glucose, fatty acids, glycerol)Large organic molecules (polymers: proteins, carbs, fats)

The

Matter

Movement Question

How

do

fungal cells

use small organic molecules to grow and divide?

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Matter Movement

Do you have:an arrow showing small organic molecules or monomers going into the fungal cell?

Small

Organic Molecules

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Matter Movement

Do you have:large organic molecules (or polymers) staying in the fungal cell?

Small Organic Molecules

Large

organic molecules

Chemical change

Small organic

molecules (monomers)

go

into cells

, but don’t come out. What

happens

inside the cells?

The Carbon and Energy Questions:

What happens to

small organic molecules during biosynthesis?

The

Matter

Change Question

Matter Change

Name the chemical change that fungal cells use to build large organic molecules:Biosynthesis

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Matter Change

What molecules are carbon atoms in before the chemical change?  Small organic molecules (or monomers such as amino acids, sugars, and fatty acids)What other molecules are needed? None

What molecules are carbon atoms in after the chemical change?Large organic molecules (or fats/lipids, and proteins)What other molecules are produced? Water

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Chemical

Change

Energy Change

What forms of energy go into this chemical change?  Chemical Energy

What forms of energy come out of this chemical change?Chemical Energy 

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Energy Transformation

Telling the Whole Story

Question: How does a cell in the stem of a fungus use food to grow and divide? Does your story include these parts?

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Matter movement:

Small

organic molecules (or monomers, such as amino acids, sugars, fatty acids, and glycerol) enter the fungal cell.

Matter

change:

The small organic molecules are combined to make large organic molecules (or polymers, such as carbohydrates, fats/lipids, and proteins).

Energy

change:

The chemical energy stored in the C-C and C-H bonds in the small organic molecules (monomers) stays in these bonds when they are combined into large organic molecules (polymers).

Matter movement:

The cell grows bigger and may eventually divide as more large organic molecules (polymers) are made.

Discuss with a partner

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