Question 1

The subunits of proteins are

Accepted Answer

amino acids

Answer

carbohydrates

Answer

lipids

Answer

plysaccharides

Question 2

Which structure is found in both eukaryotic and prokaryotic cells?

Accepted Answer

nucleic acid

Answer

nucleus

Answer

mitochondrion

Answer

chloroplast

Question 3

What structure does not belong in a prokayotic cell?

Accepted Answer

nulclear membrane

Answer

cytoplasm

Answer

DNA

Answer

phospholipid membrane

Question 4

What happens at the end of the enzyme substrate complex?

Accepted Answer

conversion of substrate into products

Answer

changes in enzymes after reaction

Answer

enzyme specificity

Answer

release of activation energy

Question 5

What would be missing in a prokaryotic cell?

Accepted Answer

mitochondria

Answer

cytoplasm

Answer

ribosomes

Answer

DNA

Question 6

What is the purpose of ATP in respiration and photosynthesis?

Accepted Answer

transfer energy from one molecule to another

Answer

absorb electrons from water

Answer

breakdown of glucose

Answer

work as an enzyme

Question 7

What process results in production of lactic acid?

Accepted Answer

anaerobic respiration

Answer

aerobic respiration

Answer

digestion

Answer

photosynthesis

Question 8

What are the products of photosynthesis?

Accepted Answer

oxygen and glucose

Answer

glucose and water

Answer

oxygen and carbon dioxide

Answer

carbon dioxide and water

Question 9

Which base pairs with guanine?

Accepted Answer

cytosine

Answer

adenine

Answer

thymine

Answer

uracil

Question 10

What molecule provides energy used to drive chemical reactions in cells?

Accepted Answer

ATP

Answer

DNA

Answer

ADP

Answer

RNA

Question 11

How many daughter cells are created after mitosis?

Accepted Answer

2

Answer

3

Answer

0

Answer

4

Question 12

What occurs during metaphase?

Accepted Answer

chromosomes line up in the middle

Answer

chromosomes condense

Answer

chromosomes relax

Answer

chromosomes moves to opposite sides

Question 13

What is the first step of DNA replication?

Accepted Answer

separating the strands

Answer

producing two new strands

Answer

condensing the DNA

Answer

correctly pairing the bases

Question 14

What process creates amino acids from mRNA?

Accepted Answer

translation

Answer

transcription

Answer

replication

Answer

mutation

Question 15

DNA is the molecule of life because

Accepted Answer

contains hereditary material

Answer

controls the material that enters/exits the cell

Answer

the largest polymer in living organisms

Answer

directs glyclolysis

Question 16

As a fertilized egg divides, the cell differentiate because they

Accepted Answer

have specific genes activated

Answer

can clump togetther

Answer

metabolize sugars rapidily

Answer

contain a lipid layer

Question 17

Cell differentiation is most directly regulated by __.

Accepted Answer

DNA

Answer

lipiids

Answer

sugars

Answer

ATP

Question 18

What characteristic is shared by bacteria, plants, and animals?

Accepted Answer

genetic material composed of DNA

Answer

transforms sunlight into energy

Answer

membrane bound organelles

Answer

self locomotion

Question 19

What is a way mutations can increase the likelihood a species will survive? Mutations are ___.

Accepted Answer

a source of variation

Answer

are not harmful when they are in somatic cells

Answer

the cause of disease

Answer

always passed on to future generations

Question 20

Parrotfish will graze with the venomous  rabbitfish.  The rabbitfish does not benefit.

Accepted Answer

commensalism

Answer

parasitism

Answer

mutualism

Answer

predator prey

Question 21

What strand of DNA is complementary to the following?  CAG CCA

Accepted Answer

GTC GGT

Answer

GTC GGA

Answer

CTA CCG

Answer

CUG GGU

Question 22

What is lost to the environment at each of the trophic levels?

Accepted Answer

heat

Answer

food sources

Answer

nutrients from the soil

Answer

living space

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