3-4 Organic Compounds

Question 1

covalent compounds composed of carbon-based molecules

Answer 1

organic compounds

Question 2

they are used to show how atoms in a molecule are connected

Answer 2

structural formulas

Question 3

an organic compound composed only of carbon and hydrogen

Answer 3

hydrocarbons

Question 4

a hydrocarbon in which each carbon atom in the molecule shares a single bond with each of the four other atoms

Answer 4

a saturated hydrocarbon or alkane

Question 5

a hydrocarbon which at least one pair of carbon atoms shares a double bond or a triple bond

Answer 5

unsaturated hydrocarbon

Question 6

compounds that contain two carbon atoms connected by a double bond called

Answer 6

alkenes

Question 7

hrdocarbons that contain two carbon atoms connected by a triple bond called

Answer 7

alkynes

Question 8

organic compounds that are made by living things

Answer 8

biochemicals

Question 9

a class of energy-giving nutrients that includes sugars, starches, and fiber; composed of one or more simple sugars bonded together

Answer 9

carbohydrate

Question 10

gives plant cell walls their rigid structure

Answer 10

cellulose

Question 11

supplies energy to muscle cells

Answer 11

glycogen

Question 12

a type of biochemical that does not dissolve in water; fats and steroids are lipids

Answer 12

lipid

Question 13

a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body

Answer 13

protein

Question 14

“building blocks”

Answer 14

amino acids