BioChem Exam

Question 0

Saturated fatty acid

Answer 0

A fat in which all 3 fatty acid chains contain the maximum # of hydrogen atoms; solid at room temperature

Question 1

Solution

Answer 1

A uniform mixture where one substance dissolves into another

Question 2

Unsaturated fatty acid

Answer 2

Contains less than maximum # of hydrogen atoms in 1 or more of its fatty acid chains; liquid at room temp.

Question 3

Covalent bond

Answer 3

Formed when 2 atoms share valence electrons

Question 4

Ionic bond

Answer 4

Bond formed when electrons are transferred from one atom to another resulting in opposite ions, that chemically attract

Question 5

Concentration

Answer 5

The amount of solute(more) to solvent

Question 6

Saturated

Answer 6

So much solute can’t dissolve (concentrated)

Question 7

Inorganic

Answer 7

Non carbon containing

Question 8

Molecular structure

Answer 8

Shows how a molecules atoms are arranged

Question 9

Macromolecule

Answer 9

Large organic biological polymers

Question 10

Disaccharide

Answer 10

When 2 sugars are tied together

Question 11

Polysaccharide

Answer 11

Long chains of sugar monomers

Question 12

Lactose

Answer 12

glu + gala

Milk sugar

Question 13

Sucrose

Answer 13

Double sugar, glucose + fructose

Question 14

Cellulose

Answer 14

A building polymer

Stiffens plant & protects cells

Question 15

Glycogen

Answer 15

Large sugar storage unit in animals

Structure: branches chains of glucose

Question 16

Chitin

Answer 16

Structure: long chain of glucose with nitrogen parts
Function: structural- used to build
Ex. Bug exoskeletons

Question 17

Triglyceride

Answer 17

A compound consisting of 3 fatty acids

Store energy in animals (in blood)

Question 18

Sterol

Answer 18

Type of fat
Structure: 4 rings fused of C & H
Chemical message: hormones / part of cell membranes (barriers)

Question 19

Glycerol

Answer 19

Guiding

Question 20

Cholesterol

Answer 20

An essential molecule found in the membranes that surround your cells; the starting point from which your body produces steroids

Question 21

Peptide bond

Answer 21

A covalent bond that is formed between 2 molecules when the carboxyl group of one molecule reacts with the amino group of another, releasing a water molecule
CO-NH

Question 22

Amino acid

Answer 22

The monomer of a protein

Question 23

Globular/fiberous shapes

Answer 23

Furor

Question 24

Active site

Answer 24

The pocket in enzyme where the substrate fits

Question 25

Substrate

Answer 25

The reactants the enzyme works on

Question 26

Polypeptide

Answer 26

Protein polymers

Question 27

R (variable) region

Answer 27

Responsible for the particular chemical properties of each amino acid

Question 28

Catalyst

Answer 28

A compound that speeds up chemical reactions

Question 29

Enzyme

Answer 29

A catalyst that lowers the energy requirement barrier so that the reaction can proceed at normal cell temperatures.