the part of the cell that controls movement of materials into and out of the cell.
What is the plasma or cell membrane
100
what do we call the passive transport of materials into or out of the cell down its concentration gradient. Molecules move from an area of high concentration to an area of lower concentration...
What is diffusion
100
The regulatory process in which an organsism regulates its internal environment.
What is homeostasis
100
in the lab we cut up agar sizes into different sizes and recorded the rate at which salt ions diffused out. Which cell sizes had the fastest diffusion rate? small, medium, large
What is small
100
biology is the study of
What is life
200
when a cell engulfs or gets rid of large materials to big to pass through the cell membrane
What is endocytosis/exocytosis
200
What is the term used to describe the movement of water from an area of high concentration to an area of low concentration.
What is osmosis
200
Name one way in which an animal may thermo-regulate in order to maintain homeostasis.
What is shiver, sweat, bask, shade, etc...
200
in the lab we made a fake cell by filling a tube of dialysis tubing with pure water and then submerged it in sugar water. Did the cell gain or lose mass due to osmosis?
What is lose
200
the study of organisms interacting with their environments.
What is ecology
300
Movement of materials into or out of a cell that does not require any energy
What is passive transport
300
If you place a piece of dialysis tubing with pure water in it into a beaker with blue food coloring in it after a few minutes the what will happen?
The blue food coloring will diffuse into the dialysis tubing.
300
Name one organ or hormone involved in maintaining homeostasis with regard to blood sugar.
What is glucagon, pancreas, insulin...
300
What if in the lab we placed sugar water in a dialysis tubing and submerged it in pure water? Would it shrink or swell?
What is swell.
300
the study of heredity
What is genetics
400
When a cell moves material into or out of a cell and it requires energy
What is active transport
400
If you place a human red blood cell into pure water what will happen. Will it shrivel, burst or stay the same?
it will burst do to osmosis.
400
Name one organ, organ system, or hormone that helps maintain homeostasis with regard to osmoregulation.
What is the kidney, andtidiuretic hormone, or excretory system...
400
My AP biology students put chunks of potato in different concentrations of sugar water. They noticed at .3M concentration the potato did not shrink or swell. Above concentrations of .3M the potato shrunk. At concentrations below .3M what do you think they observed?
It grew
400
the branch of biology which studies how organisms change over time.
What is evolution
500
A large storage device for water or other nutrients in a cell
What is a vacuole
500
Molecules that are too big or too polar to diffuse through the cell membrane must you the help of
What is carrier protiens
500
Name one organ, organ system, or hormone that helps maintain oxygen balance in the body.
What is the lung, heart, brain stem...
500
In the lab we observed elodea plant cells and human cheek cells under the microscope. Name one cellular structure you observed in either cell.
What is cell walls, chloroplasts in plants. cell membrane, nucleus in cheek cells.
500
What do you call a biologist who studies organisms that can not be seen with the naked eye?