Module 5 Vocabulary Flashcards Preview

Exploring Creation with Biology > Module 5 Vocabulary > Flashcards

Flashcards in Module 5 Vocabulary Deck (25)
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1

Matter

Anything has mass or takes up space

2

Model

An explanation or representation of something that cannot be seen

3

Element

A collection of atoms that all have the same number of protons

4

Molecules

Chemicals that result from atoms linking together

5

Physical Change

A change that affects the appearance, but not the chemical structure of the elements or molecules of a substance

6

Chemical Change

A change that alters the makeup of the elements or molecules of a substance

7

Phase

One of the three forms - solid, liquid, or gas - which every substance is capable of attaining

8

Diffusion

The random motion of molecules from an area of high concentration to an area of low concentration

9

Concentration

A measure of how much solute exist within a certain volume of solvent

10

Semipermeable Membrane

A membrane that allows some molecules to pass through, but does not let other molecules to pass through.

11

Osmosis

The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration

12

Catalyst

A substance that alters the speed of a chemical reaction but is not used up in the process

13

Organic Molecule

A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous

14

Biosynthesis

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

15

Isomers

Two different molecules that have the same chemical formuls

16

Monosaccharides

Simple carbohydrates that contain 3 to 10 carbon atoms

17

Disaccharides

Carobohydrates that are made up of two monosaccharides

18

Polysaccharides

Carbohydrates that are made up of more than two monosaccharides

19

Dehydration Reaction

A chemical reaction in which molecules combine by removing water

20

Hydrolysis

Breaking down complex molecules by the chemical addition of water

21

Hydrophobic

Lacking any affinity towards water

22

Saturated Fat

A lipid made from fatty acids that have no double bonds between carbon atoms.

23

Unsaturated Fat

A lipid made from fatty acids that have at least one double bond between carbon atoms

24

Peptide Bond

A bond that links amino acids together in a protein

25

Hydrogen Bond

A strong attraction between hydrogen and certain other atoms (usually oxygen or nitrogen) in specific molecules