LIFE102 Arthun ERS2 FA'24

________ is the movement of water across a membrane as it _________ salt.

• Diffusion; moves away from

• Diffusion; follows

• Osmosis; moves away from

• Osmosis; follows

_______, which breaks molecules down and has a -ΔG, and ________, which builds molecules and has a +ΔG, are reverse processes of each other.

• Anabolism; catabolism

• Catabolism; anabolism

• Inhibition; respiration

• Endergonic; exergonic

Tags

NGSS.HS-LS1-7

The formula for the exergonic reaction of cellular respiration is-

• C6H12O6 + H2O = O2 + CO2

• H2O + CO2 = C6H12O6 + O2

• C6H12O6 + O2 = CO2 + H2O

• O2 + H2O = C6H12O6 + CO2

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

As the final acceptor of electrons at the end of the ETC, ________ is _______

• Oxygen; reduced

• Oxygen; oxidized

• Glucose; reduced

• Glucose; oxidized

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of the following best describes why “fluid-mosaic model" is used to describe cell membranes?

• Phospholipids have hydrophobic tails and hydrophobic heads

• Unsaturated fatty acid tails, cholesterol subunits, and embedded proteins prevent the membrane from being tightly packed

• Some proteins are embedded inside the membrane (integrals), while other proteins are bound to the surface of the membrane (peripherals)

• Non-polar, small molecules can pass through cellular membranes while polar molecules require a protein

Which of the following is false about enzymes?

• Enzymes are biological catalysts

• Enzymes are not part of the final products in a reaction

• One individual enzyme can accelerate several different reactions

• Substrates need to bind to the active site of an enzyme for the reaction to occur

In a redox reaction, the reactant that is oxidized _______ electrons, while the reactant that is reduced _______ electrons

• Loses; loses

• Gains; loses

• Gains; gains

• Loses; gains

Tags

NGSS.HS-PS1-2

Membranes Contain…

• Just proteins

• Phospholipids and proteins

• Phospholipids, proteins, cholesterol and mitochondria

• Phospholipids, proteins, and cholesterol

Which of the following statements are true regarding Cellular Transport

• Active transport doesn’t require energy, passive transport requires energy

• Active transport requires energy, passive transport doesn’t require energy

• Active transport doesn’t require energy, passive transport doesn’t require energy

• Active transport requires energy, passive transport requires energy

What is the main function of enzymes

• They lower the activation energy of reactions

• They increase the activation energy of reactions

• They increase the amount of energy required for a reaction to occur

• They transport ions around the cell