Bellwork: Essays were due yesterday Turn in rubric with name and period on it. Copy and answer the following questions When we added water, what process was occurring; dehydration synthesis or hydrolysis? Describe the glue after water was added. When we added borax, what process was occurring; dehydration synthesis or hydrolysis? Describe the glue after borax was added.

The glue contains a polymer called polyvinyl acetate resin The glue contains a polymer called polyvinyl acetate resin. We changed the polymer’s behaviors twice in this activity; once when we added water and the second time when we added borax.

Questions Level 1 – Describe…… Questions Level 1 – Describe……. Level 2 – Explain……… Level 3 – Predict………. Summary must include these words- polymer hydrolysis dehydration synthesis Gloop Lab Page _________ Essential Question: Question Column Glue + Food Coloring Add Water Add Borax L1 – L2 – L3 – Prediction: Hypothesis: Observation: Diagram: Summary -

How are carbohydrates essential for life? Standard B.9A – Compare the structure and functions of different types of biomolecules. Essential Question How are carbohydrates essential for life?

Page 17 Carbohydrate Notes Page 16 Foldable - Biomolecules

Carbohydrates & Lipids

Objective: The objective of class today is to learn the structure and function of carbohydrates and lipids in living systems.

Living things use carbohydrates as their main source of energy Living things use carbohydrates as their main source of energy. Plants and some animals also use carbohydrates for structural purposes.

The breakdown of sugars supplies immediate energy for all cell activities.

Living things store extra sugar as complex carbohydrates known as starches.

Single sugar molecules are called monosaccharides. (simple sugars)

Three examples of monosaccharides include: Glucose Galactose Fructose

Large molecules made from monosaccharides are called polysaccharides.

Three examples of a polysaccharide include:

Carbohydrates Rings that link together in chains Ratio of carbon: hydrogen: oxygen is 1:2:1 contain C, H, O energy = 4cal/gram

Structure: Functions: Elements: Good to know: Carbohydrate Monomer: Main source of immediate energy Circle or ring shaped Create a 1:2:1 ratio Elements: Good to know: Often known as simple (monomers) and complex (polymers) C, H, O Carbohydrate Monomer: Polymer: Polysaccharide Examples: starch, cellulose Monosaccharide Examples: glucose, sucrose

Energy in Food Burning carbohydrates – watch and write down your observations Burning lipids – take notes and write down any observations Calories in food – take notes…MAKE SURE you write down how many calories per gram in each biomolecule AND the daily recommended allowance

Biomolecule Foldable – Part 1 (Carbohydrates) One full sheet per person Draw a picture of monomers Inside Lower Panel 2 Hotdog fold, then unfold Fold a Window Pane “Polymer” Polymer Definition Cut creases to open window Draw a picture of a polymer Window Pane 1 Inside Upper Panel 1 Outline border with one color “Dehydration Synthesis” “Carbohydrates” Dehydration Synthesis Definition Draw a glucose molecule Draw a picture of a Dehydration Synthesis Label the “Glucose” molecule Outside Window Pane 1 Inside Upper Panel 2 2 Functions “Hydrolysis” 4 Examples Hydrolysis Definition Inside Lower Panel 1 Draw a picture of Hydrolysis “Monomer” Monomer Definition

H

Lipids are molecules that are not soluble in water Lipids are molecules that are not soluble in water. They are nonpolar and hydrophobic.

The three categories of lipids include: Fats Oils Waxes

Lipids can be used to: Store energy. Contain the most energy per gram of any biomolecule. (9 Cal/gram) To form biological membranes and waterproof coverings.

Many lipids are formed when a glycerol molecule combines with compounds called fatty acids.

Lipids contain only carbon (C), hydrogen (H), and oxygen (O).

As always, summarize what you have learned about carbohydrates and lipids in 30 words. In your summary, you must use the words: carbohydrates lipids energy