Biology Chapter 2.5 Review

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71 Terms

1

The process by which living organisms produce larger molecules from smaller ones

What is the definition of biosynthesis?

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2

Compounds that contain carbon

What is the definition of organic compounds?

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3

Covalent Bonds

What kind of bonds does carbon have when it bonds to other carbon?

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4

Straight and branched chains, rings, and single, double, or triple bonds

What shapes do carbon bonds form?

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5

Provide possibilities of different functions for all forms and the ability to form stable bonds

What is the importance of the shapes that carbon forms?

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6

1. Structural: Help with cell walls/membrane
2. Enzymatic: Enzymes
3. Storage: Store energy

What are 3 functions of organic compounds?

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7

1. Carbohydrates
2. Lipids
3. Proteins
4. Nucleic Acids

What are the 4 groups of organic compounds?

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8

Carbon, Hydrogen, and Oxygen

What are carbohydrates made of?

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9

Store energy

What do carbohydrates do?

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10

Single sugar molecule, simplest form of sugar

What is the definition of monosaccharide?

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11

Double sugar, two monosaccharide joined by dehydration

What is the definition of disaccharide?

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12

Monosaccharide

What type of saccharide is glucose?

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13

Plants

Where does glucose come from?

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14

A chemical reaction in which two molecules covalently bond to each other with the removal of a water molecule

What is the definition of dehydration synthesis?

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15

Milk and dairy

Where is lactose found?

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16

Fruits, vegetables, plants, and table sugar

Where is sucrose found?

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17

Breaking down complex molecules by the chemical addition of water

What is the definition of hydrolysis?

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18

Polysaccharide

What type of saccharide is starch and glycogen?

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19

Energy storage in plants

What is the definition of starch?

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20

Energy storage in animals

What is the definition glycogen?

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21

Plants walls/membrane

Where is cellulose found?

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22

Supports the functioning of the digestive system

Why is cellulose important to humans even though they can't digest it?

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23

Polysaccharide

What type of saccharide is cellulose?

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24

Toughness and flexibility

What is chitin used for?

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25

Insects, lobsters, shrimp, and clams

What animals consist of chitin?

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26

Lungs and gut

Where is chitin found in the human body?

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27

Polysaccharide

What type of saccharide is chitin?

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28

Fats and oils for storing energy

What is the definition of lipids?

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29

Helps with structure and stores extra energy

What are the functions of lipids?

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30

They dissolve if a small but still perceptible amount of solute is added, but they do not dissolve if too much is added

What does it mean when it says lipids are semi-soluble?

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31

2 x more

How much energy can lipids store compared to muscle?

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32

Like water

What does it mean to be hydrophilic?

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33

Dislike water

What does it mean to be hydrophobic?

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34

Fats, stores energy, three fatty acids

What are triglycerides?

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35

3 fatty acids

What do triglycerides look like?

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36

Fats with the maximum number of hydrogens, single bonds, unhealthy, solid at room temp.

What is the definition of saturated?

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37

Fats with less than the maximum number of hydrogens, double bonds, healthy, liquid

What is the definition of unsaturated?

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38

Phospholipids

What are cell membranes made of?

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39

Make a person unique, provides support and function

What is the purpose of proteins?

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40

Amino acids

What are the building blocks of protein?

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41

Carbon, Hydrogen, Oxygen, and Nitrogen

What elements make up proteins?

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42

20

How many amino acids are there?

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43

9

How many amino acids are essential?

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44

Determines the shape of protein

Why is the order of amino acids important?

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45

Peptide bonds

What type of bonds hold amino acids together?

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46

Might not function

What happens if the shape of amino acids is broken?

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47

DNA, RNA, and polypeptide chains

What are made by nucleic acids?

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48

Contains the genetic information for the development and function of an organism

What is the importance of DNA?

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49

Biological catalyst

What is the definition of enzyme?

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50

Lowers activation energy and increase the rate for reaction to occur

What is the definition of catalyst?

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51

Proteins

What are most enzymes made of?

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52

Catalysis

What does it mean to reduce the activation energy?

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53

Prevents enzymes from functioning (sickness and viruses)

What happens to the function of enzymes if your body is no longer in homeostasis?

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54

1. Substrates bind to an enzyme at certain place called active sites
2. The enzyme bring substrates together and weakens their bonds
3. The catalyzed reaction forms a product that is released from the enzyme

What is the lock and key model for enzymes?

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55

Thing being dissolved

What is the definition of solute?

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56

Thing doing the dissolving

What is the definition of solvent?

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57

Ratio of solute in the solvent

What is the definition of concentration?

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58

Molecule with particle charges (+ and -), mixes with water

What does it mean that water is polar?

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59

Hydrogen Bonds

What type of bonds do water molecules form between each other?

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60

Attraction between molecules of different substances

What is the definition of adhesion?

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61

Attraction between molecules of the same substance

What is the definition of cohesion?

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62

It takes more energy to increase the temperature

What does it mean that water has a high specific heat?

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63

It allows for homeostasis and temperature regulation

What does high specific heat allow to take place on earth and in the human body?

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64

A substance that increases the hydrogen ion concentration of a solution

What is an acid?

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65

0 - 6.99

What numbers is an acid on the pH scale?

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66

A substance that decreases the hydrogen ion concentration in a solution

What is a base?

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67

7.01 - 14

What numbers is a base on the pH scale?

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68

Neither an acid or a base

What is a neutral substance?

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69

7

What numbers is a neutral substance on the pH scale?

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70

Two fatty acid molecules, makes cell membranes, outside is hydrophilic and inside is hydrophobic

What is a Phospholipid?

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71

A thin polar membrane made of two layers of phospholipids that separate cells from the environment.

What is a Phospholipid bilayer?

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