Gen Bio 2: Test 1 overview

What type of bond between atoms is based on the exchange of electrons?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What is the main function of carbohydrates in the cell membrane?

• Facilitate transport and signaling

• Provide structure and regulate fluidity

• Long-term energy and insulation

• Cell recognition and adhesion

What property of water contributes to its ability to be a universal solvent?

• Low polarity

• Low specific heat

• High polarity

• Low hydrogen bonding capacity

In a reduction reaction, what happens to the oxidation state of an element?

• Increases

• Decreases

• Remains the same

• Becomes neutral

What type of chemical reaction involves the loss of electrons or an increase in oxidation state?

• Reduction reaction

• Oxidation reaction

• Condensation reaction

• Hydrolysis reaction

What does pH measure?

• The concentration of oxygen in a solution

• The concentration of carbon in a solution

• The concentration of hydrogen ions in a solution

• The concentration of sodium ions in a solution

What is the main difference between acids and bases according to their behavior in water?

• Acids release OH- ions and bases release H+ ions

• Acids and bases do not react in water

• Acids release H+ ions and bases release OH- ions

• Acids and bases release the same amount of H+ and OH- ions

What type of transport directly uses ATP?

• Passive transport

• Secondary transport

• Phagocytosis

• Primary transport

Which of the following is NOT a type of cell junction?

• Tight junctions

• Gap junctions

• Desmosomes

• Phosphorylation junctions

What is the first step in the Na/K pump steps?

• Sodium+ release

• Phosphorylation

• Extracellular K+ binding

• Intracellular Na+ binding