Quiz 2 questions

The conversion of CO2 and H20 into organic compounds using energy from light is called: A) glycolysis. B) Photosynthesis. C) fermentation. D)cellular respiration

B) Photosynthesis

The end products of the citric acid cycle include all ofthe following except\ A) CO2 B) Pyruvate C) ATP D)FADH2.

B) Pyruvate

Which of the following molecules is a product of photosynthesis A) CO2 and chlorophyll B) g1ucose and O2 C) O2 and CO2 D) glucose and CO2

B) g1ucose and O2

Oxidation is the _______________and reduction is the ________________ . A) gain of electrons; loss of electrons B) loss of electrons; gain of electrons C) gain of oxygen; loss of oxygen D) gain of protons; loss of protons.

B) loss of electrons; gain of electrons

A Plant cell wall in a hypotonic solution (A)becomes turgid because of an inflow ofwater. B) bursts because ofan inflow of water. C) shrivels because ofan outflow of water D) wilts because of an outflow of water

(A) becomes turgid because of an inflow of water.

The Calvin Cycle constructs _________, an energy-rich molecule that a plant cell can then use to make glucose or other organic molecules. A) G3P B) ATP C) NADH D) carbon dioxide

A) G3P

ATP and NADH A) power sugar synthesis during the Calvin Cycle B) are products of the Calvin Cycle C) provide energy to photosystem 1 and photosystem 2 D) are used in the electron transport chain to pump H+ into the thylakoid space

A) Power sugar synthesis during the Calvin Cycle

After glycolysis but before the citric acid cycle, A) Pyruvate is oxidized. B) a carbon atom is added to pyruvate to make a four-carbon compound. C) coenzyme A is cleaved of pyruvate. D) glucose is split, producing two molecules of pyruvate.

A) Pyruvate is oxidized.

Which of th e following options lists the stages in cellular respiration in the correct order A) glycolysis, the citric acid cycle, and oxidative phosphorylation B) glycolysis, oxidative phosphorylation, and the citric acid cycle C) the citric acid cycle, oxidative phosphorylation, and glycolysis D) oxidative phosphorylation, glycolysis, and the citric acid cycle

A) glycolysis, the citric acid cycle, and oxidative phosphorylation

ln a hypotonic solution, an animal cell will A) lyse. B) experience turgor. C) neither gain or lose water D) Shrivel

A) lyse.

In the electron transport chain, the final electron acceptor is A) oxygen atom . B) a molecule of carbon dioxide. C) a molecule ofwater. D) ADP

A) oxygen atom

Osmosis can be defined as A) the diffusion ofwater. B) the diffusion of oonpolar molecules. C) active transport. D) the diffusion ofa solute.

A) the diffusion ofwater.

Facilitated diffusion across a biological membrane requires ____ and moves a substance ____ its concentration gradient. A) energy and transport proteins; down B) transport proteins; down . C) energy and transport protems; agamst D) transport proteins; against

B) transport proteins; down .

As a result of glycolysis, there is a net gain of ________ ATP(s) A) 0 B) 1 C) 2 D) 36

C) 2

The electrons lost from the reaction center of photosystem 2 are replaced by electrons from: A) CO2 B) ATP C) H2O D) Photosystem 1

C) H2O

Kinetic energy differs from chemical energy in that A) kinetic energy is stored energy that has the potential to do work, and chemical energy is the energy of movement. B) kinetic energy can be converted into various forms of energy, whereas chemical energy can only be converte d into heat. \ C) Kenetic energy is the energy of a moving object, whereas chemical energy is the potential energy of molecules. D) chemical energy is a particular form of kinetic energy

C) Knetic energy is the energy of a moving object, whereas chemical energy is the potential potential energy of molecules.

The energy that excites the photosystems is supplied by A) electrons passing down the electron transport chain. B) ATP C) Light. D) NADPH

C) Light.

The transfer of a phosphate group to a molecule or compound is called A) carboxylation B) ionization C) Phosphorylation D) hydrogenation

C) Phosporalation

During cellular respiration, NADH A) is chemically converted into ATP. B) is reduced to form NAD + C) delivers its electron load to the first electron carrier molecule. D) is the final electron acceptor.

C) delivers its electron load to the first electron carrier molecule.

You are adrift in the Atlantic Ocean and, being thirsty, drink the surrounding seawater. As a result, A) you quench your thirst. B) your cells become turgid. C)you dehydrate yourself. D) your cells lyse from excessive water intake.

C) you dehydrate yourself.

Substrates bind to an enzyme's _________________ Site A) Allosteric B) inhibitory C) Phosphate D) Active

D) Active

The electrons lost from the reaction center of photosystem I are replaced by electrons from A) CQ2 B) H2O C) ATP D) photosystem 2

D) Photosystem 2

In cells, yeast A) lactic acid is produced during anaerobic respiration. B) lactic acid is produced during glycolysis. C) alcohol is produced during the citric acid cycle. D) alcohol is produced after glycolysis.

D) alcohol is produced after glycolysis.

The fluid mosaic model describes the plasma membrane as consisting of A) a phosphohp1d bilayer with embedded carbohydrates. B) two layers of phospholipids with cholesterol sandwich between them C) carbohydrates and phospholipids that can drit in the membrane. D) diverse proteins embedded in a phospholipid bilayer.

D) diverse proteins embedded in a phospholipid bilayer.

If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. What accounts for this difference? A) the expulsion ofwater by the plant cell's central vacuole B) the relative impermeability ofthe plant ceU wall to water C) the fact that plant cells are isotonic to tap water . D) the relative inelasticity and strength of the plant cell wall

D) the relative inelasticity and strength of the plant cell wall