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