unit 4

which of the following processes includes all others

for living organisms, which of the following is an important consequence of the first law of thermodynamics

under which of the following conditions would you expect to find a cell with a predominance of free ribosomes

which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower temperatures

the term is used to describe the transfer of free energy from cataboolic pathways to anabolic pathways

when 10,000 molecules of ATP are hydrolyzed to ADP and Pi in a test tube, about twice as much heat is liberated as when a cell hydrolyzes the same amount of ATP. which of the following is the best explanation for this observation

which of the following is true for anabolic pathways

cystic fibrosis is a genetic disease in humans in which chloride ion channels in cell membranes are missing or nonfunctonal

which of the following is true for all exergonic reactions

glucose diffuses slowly through artificial phospholipid bilayers. the cells lining the small intestine, however, rapidly move larger quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. using this information, which transport mechanism is most probably functioning in the intestinal cells?

what structure- function pair is mistmatched

when you have a severe fever, what may be a grave consequence if this is not controlled?

which is one of the main energy transformers of the cell

which of the following statements is correct about diffusion

which of the following statements is true concerning catabolic pathways

an important group of peripheral membrane proteins are enzymes, such as the phospholipases that attack the head groups of phospholipds leading to the degradation of damaged membranes. what properties must these enzymes exhibit

which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids

according to the induced fit hypothesis of enzyme catalysis, which of the following is correct

according to the induced fit hypothesis of enzyme catalysis, which of the following is correct

increasing the substrate concentration in an enzymatic reaction could overcome which of the following

which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly

which of the following statements is true about enzyme catalyzed reactions

which of the following statements is a logical consequence of the second law of thermodynamics

in animal cells, hydrolytic enzymes are packaged to prevent general destruction of cellular components. which of the following organelles functions in this compartmentalization

organelles other than the nucleus that contain DNA include

which of the following types of reactiond would decrease the entropy within a cell

the mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is known as

a cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondrion. it could be a cell from

the presence of cholesterol in the plasma membrane of some animals

a patient has had a serious accident and lost a lot of blood. in an attempt replenish body fluids, distilled water, equal to the volume of blood lost, is transferred directly into ones of his veins. what will be the most probable result of this transfusion

which of the following relationships between cell structures and their respective function is correct

Tay-sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. which cellular organelle must be involved in this condition

which of the following statements correctly describes some aspect of protein disposal from prokaryotic cells

which of the following membrane activities require energy from ATP hydrolysis

when chemical, transport, or mechanical work is done by an organism, what happens to the heat generated

how does a noncompetitive inhibitor decrease the rate of an enzyme reaction

which of the following is an example of cooperatively

the liver is involved in detoxification of many poisons and drugs. which of the follow structures is primarily involved in this process and therefore abundant in liver cells

cells of the pancreas will incorporate radioactively labeled amino acids into proteins. this "tagging" of newly synthesized proteins enables a researcher to track their location. in this case, we are tracking an enzyme secreted by pancreatic cells. what is its most likely pathway

which of the following types of molecules are the major structural components of the cell membrane

during a laboratory experiment, you discover that an enzyme- catalyzed reaction has a change in G of -20 kcal/mole if you double the amount of enzyme in the reaction, what will be the change in G for the new reaction

the sodium- potassium pump is called an electrogenic pump because it

the advantage of light microscopy over electron microscopy is that

when ATP releases some energy, it also releases inorganic phosphate. what purpose does this serve in the cell

which of the following statements is a logical consequence of the second law of thermodynamics

the volume enclosed by the plasma membrane of plant cells if often much larger than the corresponding volume in animal cells. the most reasonable explanation for this observationn is that