Final Review Key

1.The three components of an experiment are, the [independent variable, the [dependent

variable, and the [control. Place in order from largest to smallest.

2. d Organism3. f organs4. c tissues5. a cells6. b molecules7. e atoms

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a) 4b) 5c) 3d) 1e) 6f) 2

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8. A - [electron

B - [neutronC -  [proton

9. Electrons are found in the [orbitals of the [Energy Levels of the [Electron Cloud.

10. The compound in the picture above is polar molecule.

a)Trueb)False

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11. Duffusion is the process of a)areas of high concentration moving to lower concentrationb)areas of low concentration moving to higher concentrationc)the movement of water through a gradientd)how much solvent is in a solution

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12. Osmosis is the process of water moving through a gradient.

a)Trueb)False

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13. The 3 functions of lipids (fats) are [cellular protection, [insulation, and [energy storage.

14. A sacharide is a ___________?a)glycerolb)carbohydratec)lipdd)protein

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15. Proteins are made up of amino acids bonded together by peptide bonds.

a)Trueb)False

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16.The two types of Microscopes we went over are compound light and electron

a. True b. False

17.What are the 3 steps of cell theory?c. All Organisms are made up of cells d. All Cells come from pre-existing cells e. He cell is the basic unit of organization of a cell

18.What type of cells is shown below?f. Eukaryotic

19.Fill in the blanks (ten)

20.The name of the model below isg. carbohydratesh. Wave Diagrami. Fluid Mosaic Model j. Cell Wall Diagram

21.How does it maintain homeostasis?

The plasma membrane maintains homeostasis by regulating what can move in and out of the cell based on the needs of the cell and the concentration gradient.

22.Name The 5 the structures listed below.

B. CarbohydrateC. Microtubule/Extracellular matrixD. Phospholipid Bi-layerE. CholesterolF. Membrane Protein

23.What two structures does a plant cell have that an animal cell does not?k. Cell Walll. Chloroplasts

24.Match the organelle with its function by drawing a line.

Nucleolus Reads DNA and makes proteins Cytoplasm Is an energy storehouse for the cell

Ribosomes The workshop, where reactions take placeEndoplasmic Reticulum(ER) Resource storage structures

Golgi Apparatus Is the backbone/support system of the cell

Vacuoles Where ribosomes are madeLysosomes The gelatin that all organelles sit in

B

Chloroplasts The messaging and delivery system structure

Mitochondria The cells digestion system

cytoskeleton Converts light into energy

25.What is the difference between active and passive transport?

Active transport requires energy in the form of ATP and passive does not.

26.Osmosis is different from diffusion in that it is a specific type of diffusion which deals specifically with the transfer of water through the selectively permeable membrane determined by the concentration gradient and a few other factors.

m. True n. False

27.Match the cell with how it would look in that solution

o. Hypertonic C

p. Hypotonic B

q. Isotonic A

28.What is the difference between endocytosis and exocytosis?

Endocytosis is the process of the cell bringing in food and nutrients, and exocytosis is when the cells releases waste.

29.The three things that limit cell size are Diffusion rate, DNA, and surface volume ratio.r. True s. False

30.What is the purpose of a scientific model?The purpose of a scientific model is to take a micro object and make it macro for

purposes of further intensified study.

A C

31.An aqueous solution is a solution in which the solvent is water.a)Trueb)False

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32.Please label the picture correctly.1. [Matter2. [Pure Substance3. [Mixture4. [Element5. [Compound6. [Homogeneous Mixture7. [Heterogeneous Mixture

33.How are formulas used in Chemistry?

Formulas are used to determine the amount of a chemical that is needed for a reaction.

34.The States of matter are [Solid, [Liquid, and [Gas.

35.A liquid changes to a gas at [Boiling Point and it changes into a solid at [Freezing Point.

36.Density is the amount to matter in an object.

a)Trueb)False

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37. Volume is the amount of space matter takes up.

a)Trueb)False

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38.From left to right, name the model.1. [Daltons Model2. [Thomson's Model3. [Rutherford's Model4. [Bohr's5. [Quantum mechanical or Modern Model

39. What do the dots in the image represent?

a)The number of electron in the closest energy levelb)The number of protons in the nucleusc)The number of neutrons in the nucleusd)The number of valence electrons

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40.The Heisenberg Uncertainty Principle is a law that states the we can never be certain about

anything, every thing is relative.a)Trueb)False

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41. Select all that apply! Which of the following are types of orbitals?

a)1sb)2pc)2dd)3f

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42.What is the difference between a hypothesis, a Scientific Theory, and a Scientific Law?

A hypothesis is an answer to a question or problem, a scientific Theory is a repeatedly test hypothesis that has yet been proven false, and a law is a fact observed in nature.

43.The [Proton, [Neutron,and the [Electron Make up an atom.

44.The two types of chemical reactions are [Exothermic and [Endothermic.