biology exam 2

Hershey and Chase came up with 2 main facts?

DNA does not contain sulfur, protein does DNA contains phosphorous, protein doesn't

links 2 pieces of DNA together

DNA ligase

A=? and G=?

T, C

which source of energy is most directly responsible for ATP synthesis in the chloroplast

a pH gradient across the thylakoid membrane

Which doesn't occur in the krebs cycle?

adding electrons and protons to oxygen to form water

process consumes O2, converting it to H20

electron transport

which is capable of aerobic respiration?

grass, yeast, oak, mice, ALL!

in plants, how many CO2 molecules are needed to make one sucrose molecule

12

How many CO2 molecules are released by a single acetyl-CoA molecule during aerobic respiration

2

NADH has __ more electrons than NAD

2

how many CO2 molecules are produces when one glucose molecule is completely utilized in the process of alcohol fermentation

2

how many CO2 molecules are produced when one glucose molecule is completely utilized in the process of aerobic respiration

6

what type of photosynthesis is done by sugar cane

C4type photosynthesis

removes the RNA primer and replaces with DNA

DNA polymerase I

the margin of an exact cop of DNA is called

DNA replication

takes place not he inner membrane of the mitochondria

ETC

What happens in the Krebs cycle?

Production of ATP, NADH, FADH2

cellulose does not readily react with O2 forming CO2 and H2O at room temperature because

at room temperature, the estivation energy barrier for this reaction connote be surmounted

a yeast strain has a defect in the krebs cycle, how can the yeast grow>

by alcohol fermentation

how does an enzyme catalyze a reaction

by lowering the activation evergy

a chemical reaction requiring energy

endergonic

in aerobic respiration, oxygen is directly required in

excepting electrons at the end of the electron transport chain

which molecule will yield the most energy in aerobic respiration

glucose

separates 2 DNA strands to unwind them

helicase

griffith observed that?

mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form

what type of biological molecule is inserted into bacteria by bacteriophages to start viral infection

nucleic acid only

chlorophyll molecules mostly absorb the ___ and ____ wavelengths of visible light

red and blue

where is the rubisco located in the chloroplast

stroma

What types of fermentation can the brain perform?

the brain cannot do any fermentation

what is true for endergonic reactions

the products have more free energy than the reactants