Chemistry/ Biochemisty (Ch.2)

Question 1

What are the three particles that make up an atom?

Answer 1

proton, neutron, electron

Question 2

What is an ion?

Answer 2

An ion is a charged atom that has unequal numbers of p+ and e-

Question 3

What is the difference between atomic mass and atomic number?

Answer 3

Atomic mass- number of neutrons & protons
Atomic number - # of protons

Question 4

What are the two types of bonds?

Answer 4

1) ionic bonds
2) covalent bonds

Question 5

What are substances that speed up chemical reactions called?

Answer 5

catalyst

Question 6

What is the name of the site in which an enzyme bonds with a substrate?

Answer 6

active site

Question 7

Which of the 4 main organic substances (maromolecules) are important to living things?

Answer 7

nucleic acids, proteins, carbohydrates, lipids

Question 8

What are fats and oils classified as?

Answer 8

lipids

Question 9

What is the subunit of lipids?

Answer 9

glycerol & fatty acids

Question 10

What is the subunit of carbohydrates?

Answer 10

monosaccharides

Question 11

What are examples of carbohydrates?

Answer 11

sucrose

Question 12

What are DNA and RNA examples of?

Answer 12

nucleic acid

Question 13

What is the subunit of nucleic acids?

Answer 13

nucleotides

Question 14

What are the functions of proteins?

Answer 14

build and repair

Question 15

What is the subunit of protein?

Answer 15

amino acids