Biology test 2
Which of the following is a by product of photosynthesis that is used during cellular respiration?
Oxygen
The changing of an enzyme's shape as the substrate binds to the active site is called the
induced fit model
Compared with a eukaryoic cell, a prokaryotic cell
lacks organelles beyond ribosomes
In bacterial cells and plant cells, cell walls function in
maintaining cell shape
The main structural component of a plant cell is
Cellulose
Chloroplasts and mitochondria are similar in that they both
Contain DNA
Which of the following would be best to view all the organelles of a cell with?
Electron microscope
Which of the following statements describes the function of a chloroplast
It converts light energy into chemical energy
What organelle is required for producing ATP for cellular work?
Mitochondria
Some proteins within a cell can be viewed with
an electron microscope
Osmosis includes
both the diffusion of water and a semi-permeable membrane
Which form of passive transport allows small molecules, such as oxygen to cross the cell membrane
diffusion
Simple diffusion across a plasma membrane is called passive transport because it
does not require energy from the cell
Molecules move from greater to lesser concentration through a transport protein in
facilitated diffusion
Disease-causing bacteria often attach to cells they attack. The bacterial structures used to aid that attachment are
fimbriae
Since the plasma membrane blocks the passage of all but a few molecules with specific traits it is necessary for other molecules to
Pass through the membrane via proteins
Which 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
What must materials pass through to enter or leave a cell?
Plasma membrane
Which of the following is NOT an example of osmosis
Sugar in coffee dissolves
Resolving power is
The ability to tell two points apart as separate points
What is the biological risk of using salt on icy roads in parts of the country that have a cold winter
The salt has the risk of leeching into the ground and creating a hypertonic environment for plant cells
Probable factors that affect the passage of materials across cell membranes include all of the following EXCEPT
color
Enzymes are able to speed up the rate of a reaction by
lowering the energy needed for the reaction to proceed