Bio 1201 Exam 2

The sequence of one stranding of a double-stranded DNA molecule is given below. What is the sequence of the other strand? The sequence: 5'-CGTACAA-3'

5'-TTGTACG-3'

the process of the active transport and the movement of motor proteins involved in cell motility both require

ATP

Which has the best chance of escaping?

C

What type of photosynthesis is done by sugar cane

C4-type photosynthesis

Which zebra is using glucose at the fastest rate

D

Which flask(s) is/are growing?

D and E

Which flask(s) is/are producing CO2?

D and E

Which statement about DNA is true?

DNA contains the base adenine

The making of an exact copy of DNA is called

DNA replication

Which one of these steps oxidizes NADH?

Electron transport

which one directly requires O2?

Electron transport

Using aerobic respiration, which molecule can provide the most energy.

Glucose

Which one of these steps breaks glucose down into two 3-carbon molecules?

Glycolysis

Which molecule below is the most oxidized?

H-C(triplebond)C-H

Which one of these steps release the most CO2?

Krebs Cycle

Which of the following can pass most easily through a lipid bilayer?

O2

Which organisms produces O2?

Only photosynthetic organisms produce O2

A chemical reaction that requires energy to take place is called ________.

an endergonic reaction

Which flask(s) is/are producing ethanol?

only D

How many CO2 molecules are produced when one maltose molecule is completely covered to CO2 and H2O by aerobic respiration? Remember maltose is a disaccharide made of two glucose molecules.

12

Most plants make sucrose, a disaccharide of glucose and fructose, from CO2 fixed during photosynthetic. How many CO2 molecules are needed to make one sucrose molecule?

12

From one glucose molecule, glycolysis provides the cell with _________.

2 ATP and 2 NADH

The bases adenine and thymidine base pair in DNA double helices. What type of bond and how many make up this interaction.

2 hydrogen bonds

DNA isolated from a bacterium is composed of 30% thymidine (T). What percentage of the nucleotides are guanosine (G)?

20%

Recently some Kentucky students took some breath mints containing chlorophyll and decided to go to the beach and photosynthesize. This probably wont work because the proteins that bind chlorophyll are not present in humans, even students and coaches from the University of Kentucky. What proteins listed below bind chlorophyll?

Photosystem I and photosystem II

What is the direct source of energy that drives ATP synthesis by mitochondrial ATP synthase?

a H+ gradient across the inner membrane

The concentration of NADH outside of the mitochondrion is lower than the concentration inside. a specific transport protein is required for NADH to enter the mitochondria and ATP is required. This is an example of:

active transport

_________ is probably the most abundant enzyme on the planet

cytochrome oxidase

An animal cell placed in a hypotonic solution is likely to:

enlarge and possibly lyse

Insulin, a hormone is made in pancreatic cells and exported from the cell in small vesicles. these vesicles fuse with plasma membrane releasing the insulin from the cell. What process is occurring?

exocytosis

the concentration of pyruvate outside of the mitochondrion is higher than the concentration inside. A specific transport protein is required for pyruvate to cross the membrane but no ATP is required. This is an example of:

facilitated diffusion

Which pathway is common or reaction is used in both aerobic respiration and alcohol fermentation?

glycolysis

A glass of salt water is _________ relative to a glass of pure water.

hypertonic

Which is the correct location of the Krebs Cycle

in the mitochondrial matrix

You have a yeast strain that has a defect in cytochrome oxidase. Under what conditions, if any, could that cell grow?

it can grow by alcohol fermentation

When compared with oxidized NAD+, reduced NADH has ____.

one less carbon= carbon double bond

When Hershey and Chase labeled the phage with 35-Sulfur, what cellular component were they specifically labeling?

proteins were specifically labeled

The process of endocytosis is __________.

the movement of substances into the cell through membrane-bound vesicles

How are the plasma membrane and a membrane of the Golgi apparatus different

the proteins in each membrane would be different

In the Hershey-Chase experiment which part of the virus was inserted into the host cell to start a viral infection?

viral nucleic acids

Which zebra(s) will likely become a lion chew toy?

A and B

An unfavorable reaction that occurs along with the cleavage of ATP to ADP and phosphate is an example of ______.

a coupled reaction

In an experiment DNA extracted from the pathogenic S strain of streptococcus pneumonia is mixed with living cells of the non-pathogenic R strain and this mixture is injected into mice. What will happen

the mice will die and the bacteria taken from the dead mice will look like the S strain

In the next experiment DNA extracted from baboon skin cells is mixed with living cells of the nonpathogenic R strain of S. pneumoniae and this mixture is injected into mice. what will happen?

the mice will live, surviving bacteria will look like the R strain.