Animals Lesson 4.2

Animals Lesson 4.2

Carbon: Transformations in Matter and Energy Environmental Literacy Project Michigan State University Decomposers Unit Activity 5.4: Explaining How Fungi Grow: Biosynthesis 1 YYoouu aarree hhee rree

Unit Map 2 Revisit your arguments Think about what you know now that you didnt know before. What have you figured out?

3 How do fungi use food as materials for growth? 4 Step 2: Biosynthesis Materials for growth: Biosynthesis Food Digestion Energy:

Cellular respiration 5 Constructing explanations Consider the following as you construct your explanation: Evidence from the investigation What you figured out from the molecular modeling or tracing

activities Three Questions Handout 6 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. 7 The Matter Movement Question Small organic molecules (monomers: amino acids, glucose, fatty acids, glycerol) How do fungal cells use small organic molecules to grow and divide?

Large organic molecules (polymers: proteins, carbs, fats) 8 Matter Movement Small Organic Molecules Do you have: an arrow showing small organic molecules or monomers going

into the fungal cell? 9 Matter Movement Small Organic Molecules Large organic molecules Do you have: large organic

molecules (or polymers) staying in the fungal cell? 10 The Carbon and Energy Questions: The Matter Change Question What happens to small organic molecules during

biosynthesis? Chemical change Small organic molecules (monomers) go into cells, but dont come out. What happens inside the cells? 11 Matter Change Name the chemical change that fungal cells use

to build large organic molecules: Biosynthesis 12 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) Chemical Change What other molecules are produced? Water

13 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 Energy Transformation

14 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? (Check the back of the Three Questions Handout.) 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. 15 Discuss with a partner 16 How have your ideas changed? Gather together your process tools for the unit (Expressing Ideas and Questions Tool, Predictions and Planning Tool, & Evidence-Based Argument Tool).

How have your ideas changed related to: Scale? Movement? Carbon? What do you know now about how fungi use food to move and function that you didnt know before the investigation? 17 Revisit unanswered questions Which unanswered questions can you now answer with

what you understand about digestion and biosynthesis? Which questions are left unanswered? Do you have any new questions to add? 18 Learning Tracking Tool

Record the activity chunk name Explaining How Decomposers Grow and your job Explainer. Discuss what you did during the activity chunk and record your ideas in the column, What Did We Do? Discuss with your classmates what you figured out will help you to answer the unit driving question. Record your ideas in the column What Did We Figure Out? Discuss questions you now have related to the unit driving question and record them in the column What Are We Asking Now?

19 Exit Ticket Conclusions How does a mushroom grow on the cellular scale? Predictions How do you think what we have learned about mushroom applies to other decomposers? 20

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