Biology Lecture 4

Which of the following is an example of simple diffusion

A sugar cube dissolves in coffee.

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

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

Which of the following is an example of kinetic energy

a roller coaster traveling downhill

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

active site

Mitochondria are found in

both plant cells and animal cells

All cells have some characteristics in common; both prokaryotic and eukaryotic cells have

cytoplasm, a plasma membrane, and DNA

Which of the following terms best describes entropy

disorder

Metabolic pathways, which are facilitated by________ begin with a particular________ and terminate with an end________.

enzymes; reactant; product

When neurons release their neurotransmitters, they release them in secretory vesicles that fuse with the plasma membrane. What type of cellular transport is this

exocytosis

Which of the following is a passive process

facilitated diffusion

Identify the organelle - function pairing that is mismatched

flagella - contain digestive enzymes that can digest molecules or cellular components

The stack of thylakoids labeled "A" in this figure is called

granum

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

induced fit model

Energy of activation

is the energy required for molecules to react with each other

If the concentration of the solute is the same in the cell as it is in the surrounding solution, the cell is in a(n)________ environment

isotonic

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

lowering the energy needed for the reaction to proceed.

What must materials pass through to enter or leave a cell?

plasma membrane

The opposite of a turgid plant cell is

plasmolyzed plant cell.

What prevents a plant cell from bursting in a hypotonic solution

presence of a cell wall

Which of the following is a correct match

ribosomes - protein synthesis

Which of the following is a function of junction proteins

to assist in cell-to-cell adhesion and allow cell-to-cell communication

Which of the following is a correct matching of an organelle and its function?

vacuole ... storage

Which statement most accurately describes the second law of thermodynamics?

Energy cannot be changed from one form to another without a loss of usable energy

Below is a diagram of a bacterium. What part of the bacterial cell does Z represent?

Flagella

Which of the following organelles would form a membrane-bound package, also known as a vesicle

Golgi apparatus