Which of the following compounds may be polymers?

car

bohydra

tes

nucl

eic

acid

s

pro

tein

s

all

of th

ese

25% 25%25%25%

Which of the following compounds may be polymers?

1. carbohydrates

2. nucleic acids

3. proteins

4. all of these

wat

er

org

anic

hom

ogeneo

us

bio

logi

cal

25% 25%25%25%

Carbon compounds that come from living organisms are called _____ compounds.

1. water

2. organic

3. homogeneous

4. biological

one

two

thre

e fo

ur

25% 25%25%25%

How many electrons can a carbon atom share? Carbon has a total of 6

electrons

1. one

2. two

3. three

4. four

pro

tons

and n

eutro

ns

neu

trons

and e

lect

rons

pro

tons

and e

lect

rons

pro

tons,

neu

trons,

an...

25% 25%25%25%

The nucleus of an atom contains _____.

1. protons and neutrons

2. neutrons and electrons

3. protons and electrons

4. protons, neutrons, and electrons

ele

ctro

n clo

uds

nucl

ei air

isoto

pes

25% 25%25%25%

Electrons move about the nucleus of an atom in regions called _____.

1. electron clouds

2. nuclei

3. air

4. isotopes

nucl

eic

acid

s

pep

tide

bonds

am

ino a

cids

gly

cero

l and fa

tty a

cids

25% 25%25%25%

What are the basic building blocks of proteins?

1. nucleic acids

2. peptide bonds

3. amino acids

4. glycerol and fatty acids

ioni

c bond

ing

pola

rity

cova

lent b

onding

hyd

rogen

bondin

g

25% 25%25%25%

Water dissolves many ionic and molecular compounds because of its _____.

1. ionic bonding

2. polarity

3. covalent bonding

4. hydrogen bonding

hyd

roly

sis

ele

ctro

n clo

uds

conden

satio

n

radi

atio

n

25% 25%25%25%

When molecules of glucose and fructose combine to form sucrose, they do so by

_____.1. hydrolysis

2. electron clouds

3. condensation

4. radiation

lipid

s

car

bohydra

tes

nucl

eotid

es

pro

tein

s

25% 25%25%25%

The various enzymes in our bodies are _____.

1. lipids

2. carbohydrates

3. nucleotides

4. proteins

num

bers

of ato

ms

arr

angem

ent o

f ato

ms

kin

ds o

f ato

ms

arr

angem

ent o

f ele

c...

25% 25%25%25%

Glucose and fructose, with the formula C6H12O6, differ in _____.

1. numbers of atoms

2. arrangement of atoms

3. kinds of atoms

4. arrangement of electrons

3 5 9 13

25% 25%25%25%

A very strong base might have a pH of _____.

1. 3

2. 5

3. 9

4. 13

two e

lect

rons

eig

ht e

lect

rons

sev

en e

lect

rons

nin

e el

ectro

ns

25% 25%25%25%

An atom of fluorine has nine electrons. Its second energy level has _____.

1. two electrons

2. eight electrons

3. seven electrons

4. nine electrons

dyn

amic

equ

ilibriu

m

turg

or p

ress

ure

conce

ntra

tion g

radie

nt

hom

eost

asis

25% 25%25%25%

Diffusion continues until there is no _____.

1. dynamic equilibrium

2. turgor pressure

3. concentration gradient

4. homeostasis

pola

r ions

rand

om m

otion o

f mo...

chem

ical

ener

gy

mic

roorg

anis

ms

25% 25%25%25%

Brownian motion is evidence of _____.

1. polar ions

2. random motion of molecules

3. chemical energy

4. microorganisms

Which of the images in Figure 6-4 depicts dynamic equilibrium?

1. A

2. B

3. C

4. D

The smaller subunits that make up nucleic acids are ____________________.

a. Super tiny

b. Amino acids

c. Nucleotides

d. Carbohydrates

Two atoms that share electrons are held together by ____________________ bonds.

a. Diffusion

b. Isotonic

c. Covalent

d. Ionic

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

glucose polymer that forms the cell walls of plants

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

large molecule formed when many smaller molecules bond together

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

molecule with unequal distribution of charge

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

protein that speeds up a chemical reaction

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

bond formed between amino acids

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

all the chemical changes that occur within an organism

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

mixture in which one substance is distributed evenly in another

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

cel

lulo

se

polar

molec

ule

nucle

us

pep

tide

bond

polym

er

solu

tion

enzy

me

met

abolis

m

12% 12% 12% 12%12%12%12%12%

center of an atom

1. cellulose

2. polar molecule

3. nucleus

4. peptide bond

5. polymer

6. solution

7. enzyme

8. metabolism

• What are the 4 types of biomolecules/organic molecules?

• Give an example of each.

CARBOHYDRATES: sugar, starch, pasta, crackers, potatoes etcLIPIDS: oils, fats, chips, cheese, greasy foodsPROTEINS: meat, peanut butter, milkNUCLEIC ACIDS: DNA, RNA

• What are the tests to determine the presence of certain biomolecules/organic compounds?

BROWN PAPER: test for lipidsIODINE: test for starchBENEDICT’S SOLUTION: test for sugars