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