Biol 1406 Final Exam

What is the term for metabolic pathways that release stored energy by breaking down complex molecules?

• Glycolytic pathways

• Redox pathways

• Catabolic pathways

• Anabolic pathways

Tags

NGSS.HS-LS1-7

Which molecule functions as a reducing agent (electron donor) in a redox or oxidation-reduction reaction?

• Loses Electrons and Loses Potential Energy

• Gains Electrons and Loses Potential Energy

• Loses Electrons and Gains Potential Energy

• Gains Electrons and Gains Potential Energy

Which of the following statements describes the result of this reaction: C6H12O6 + 6O2 --> 6 CO2 + 6 H2O?

• C6H12O6 is reduced and CO2 is oxidized

• C6H12O6 is oxidized and O2 is reduced

• C6H12O6 is reduced and O2 is oxidized

• C6H12O6 is oxidized and CO2 is reduced

Tags

NGSS.HS-PS1-2

Which term describes the degree to which an element attracts electrons?

• Electronegativity

• Valence electron

• Ionization energy

• Atomic radius

The oxygen consumed during cellular respiration is involved directly in which process or event?

• Fermentation

• Glycolysis

• Electron transport chain

• Krebs cycle

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

In glycolysis, ATP molecules are produced by

• Oxidative phosphorylation

• Substrate level phosphorylation

• Chemiosmosis

• Photophosphorylation

Tags

NGSS.HS-LS1-7

During glycolysis, when each molecule of glucose is catabolized to two molecules of pyruvate, most of the potential energy contained in glucose is

• Used to reduce NAD+

• Stored in pyruvate

• Released as heat

• Converted to ATP

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which statement about the citric acid cycle is correct?

• It is the first step in cellular respiration

• It produces ATP by oxidative phosphorylation

• It occurs in the cytoplasm of the cell

• The last reaction in the citric acid cycle produces a product that is a substrate for the first reaction of the citric acid cycle

Tags

NGSS.HS-LS1-7

Cytosine makes up 42% of nucleotides, how much does thymine make up?

• 8% Thymine

• 42% Thymine

• 16% Thymine

• 21%Thymine

Histamine is a chemical substance released in inflammatory and allergenic responses. Histamine diffuses across the plasma membrane to bind to the H1 receptor inside the cell. When a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is

• A steroid

• A second messenger

• A signal molecule

• A hormone