Bio 105 Ch 5

Identify which of the following statements is not true.

ATP is comprised of a sugar, base, and two phosphate groups.

In the following figure, which cell exhibits the condition of plant cells that have been placed in a hypertonic environment?

Both b & c

Which of the following statements describes the correct flow of energy conversions through living systems?

Chloroplasts convert solar energy to the chemical energy of nutrient molecules.

When a car burns gasoline, much of the energy is released in the form of heat. Which of the following best describes this process in relation to the first law of thermodynamics?

Energy can be changed from one form to another.

Which of the following statements most accurately describes the first law of thermodynamics?

Energy can neither be created nor destroyed, but it can be changed from one form to another.

The second law of thermodynamics states that all energy transformations result in more disordered energy. How does this relate to energy transformation in a living organism?

The energy taken in as food is eventually converted into heat energy.

ATP releases energy when

a phosphate group is removed from it

The part of the enzyme into which the substrate fits is called the

active site

The energy taken in as food is eventually converted into heat energy.

an enzyme binds one specific substrate.

Probable factors that affect the passage of materials across cell membranes include all of the following except

color.

Which of the following terms best describes entropy?

disorder

Simple diffusion across a plasma membrane is called passive transport because it

does not require energy from the cell.

Which of the following is not a mechanism used to move materials in and out of the cell?

feedback inhibition

The changing of an enzyme's shape as the substrate binds to the active site is called the

induced fit model.

When a cell is in a solution where the concentration of the solute is the same in the cell as in the solution, the solution is called

isotonic

Enzymes are able to speed up the rate of a reaction by

lowering the energy needed for the reaction to proceed.

Which of the types of cellular activities listed below would not use ATP?

passive transport

A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called

phagocytosis.

Which of the following shows the flow of energy at the cellular level through the biosphere?

solar energy - chloroplast - mitochondria

Which of the following is not a type of potential energy?

the energy of a ball rolling down a hill