CRCT Practice September 16, 2013Leaf cells use chlorophyll to absorb

A.OxygenB.Light energyC.Carbon dioxideD.glucose

NOTES, September 16, 2013Atoms are the smallest particle of all matter.

Elements are a type of matter where all the atomsare the same. Elements can not be broken down.Example: hydrogen or oxygen

A compound is when two or more elements arechemically combined. Example: 6H₂O

A molecule is the smallest part of a compound. H₂O

Four large molecules that supportcell function:1. Carbohydrates-give energy2. Lipids-fats, oils, waxes found in living things3. Proteins-made of amino acids; enzymes are types of proteins that control chemical reactions

4. Nucleic Acids-molecules thathold the instructions for the maintenance, growth, and reproduction of a cell (DNA andRNA)

34. Organic compounds-compounds found in all living things in nature. Only living(or once living) organisms can contain organic compounds. Hint: look for the element carbon (C )

35. Inorganic compounds-compounds found in all nonliving things in nature.

CRCT Practice September 17, 2013The cells of a redwood tree require oxygen for the process of

A.PhotosynthesisB.Cellular respirationC.FermentationD.Binary fission

Notes,

Cells must:Get materials they need into the cell

Get rid of waste products in the cell

Have chemical reactions in the cell

Vocabulary36. homeostasis- “balanced”; thenumber of molecules inside a cellare the same as the number ofmolecules outside the cell

37. diffusion-the movement of molecules across a cell membrane(in or out of cell)

38. osmosis- a type of diffusion;moves ONLY water molecules acrossthe cell membrane

39. active transport-the movementof molecules in or out of a cell when the cell uses energy

40. passive transport-the movementof molecules in or out of a cell WITHOUT the cell using energy(diffusion and osmosis)

Reading pages 56-60; guidedreading

CRCT Practice September 18, 2013Both a whale and a seaweed use which of the following to change glucose into energy?

A.WaterB.PhotosynthesisC.Cellular respirationD.Bonding

Notes 9/18/13Chemical energy is provided to allcells as glucose. Water is needed forall chemical reactions in a cell.

Osmosis is a special type of diffusion. Osmosis only moves water moleculesin and out of a cell. This is because cells need so much water. (passive)

Diffusion is a type of passive transportthat moves molecules in or out ofcell ( carbon dioxide, oxygen…)

Active transport moves molecules butMust use some the cell’s energy to doThis. Salt moves across a cell’smembrane this way.

Diffusion of carbon dioxide

Osmosis- WATER ONLY

CRCT Practice September 19, 2013

The process by which water moves acrossa cell membrane is A. DiffusionB. Active transportC. OsmosisD. Facilitated diffusion

PRACTICE WITH OSMOSIS AND DIFFUSION

CRCT Practice September 20, 2013

The cell organelle where photosynthesistakes place is the

A. CytoplasmB. ChlorophyllC. Cell membraneD. Chloroplast

September 20, 2013

Analyzing Data Sheet

Class today will be setting up theEgg experiment and getting the information you need for this.

4 (A) 3 (B) 2 (C) 1(F) PointsData The data is

presented for every day in a clear, precise form

The data is presented for four of the five days in a clear, precise form

The data is presented for two of the five days in a clear, precise form

The data is presented for one of the five days in a clear, precise form

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Measurement

There are measurements for circumference with units for five days

There are measurements for circumference with units for four days

There are measurements for circumference with units for two days

There are measurements for circumference with units for one day

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Descriptions The egg’s overall appearance is described completely and clearly for all five days

The egg’s overall appearance is described completely and clearly for four days

The egg’s overall appearance is described completely and clearly for two days

The egg’s overall appearance is described completely and clearly for one day

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Explanations The change in the egg’s circumference and appearance is fully explained for each day. The key terms osmosis, diffusion, homeostasis are used correctly and completely as part of the explanation.

The change in the egg’s circumference and appearance is partially explained for each day. The key terms osmosis, diffusion, homeostasis are used

The change in the egg’s circumference and appearance is fully explained for each day. Not all of the key terms osmosis, diffusion, homeostasis are used

The change in the egg’s circumference are explained in incomplete thoughts. None of the key terms are used.

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Grammar The report is written using complete sentences, paragraph format. There are no spelling errors and no pronouns are used without antecedents. The introductory and concluding paragraphs are correct.

The report is written using complete sentences, paragraph format. There are few spelling errors, and there are no pronouns used without an antecedent.

The report is written using some incomplete sentences, and/or no paragraph format. There are spelling errors, and/or there are pronouns used without antecedents.

The report is written using incomplete sentences, and no paragraph format. There are spelling errors, and/or there are pronouns used without an antecedent.

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