Biol 411: Quiz 5

The overall process of cellular respiration begins with Glucose and O2 and results in the formation of H2O and CO2. How many molecules of ATP can beee synthesized through this process?

32

Which of the following statements is a correct distinction between autotrophs and heterotrophs?

Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic

Which of the following statements correctly summarizes a redox reaction that occurs in photosynthesis?

CO2 is reduced to form glucose

Which of the following statements regarding enzymes is true?

Enzymes increase the rate of a reaction by lowering the activation energy barrier

Which of the following events occurs in the light reactions of photosynthesis?

Light is absorbed and transferred to reaction-center chlorophyll

Which of the following statements correctly describes how ATP is involved in the oxidation of one molecule of glucose in glycolysis?

Two molecules of ATP are used, and four molecules of ATP are produced

When an inhibitor binds the active site of the enzyme and physically blocks the substrate from binding it will prevent enzymatic function, this process is known as

competitive inhibition

Which of the following sequences represents the correct order in which metabolic reactions occur during the complete oxidation of glucose through aerobic respiration?

glucose → glycolysis → pyruvate oxidation → citric acid cycle → electron transport chain

When exercising, muscle cells will go through fermentation reactions, this results in the production of ________________ under anaerobic conditions

lactic acid

Which organelles or organisms are capable of synthesizing ATP using energy from chemiosmosis?

mitochondria, chloroplasts, and bacteria that generate proton gradients across their plasma membranes

When a molecule of NAD+ (nicotinamide adenine dinucleotide) gains a hydrogen atom (a proton and an electron), the NAD+ molecule becomes ___________________, resulting in NADH

reduced

Where does the Calvin cycle take place?

stroma of the chloroplast

Which chemical process generates the ATP produced in glycolysis?

substrate-level phosphorylation

When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space, the result is

the creation of a proton-motive force, or H+ gradient

Where are ATP synthase complexes located in a plant cell?

thylakoid membranes and inner mitochondrial membranes