Unit 4 Transport Set

Front 1

passive transport

Back 1

is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the growth of entropy of the system.

Front 2

diffusion

Back 2

the spreading of something more widely.

Front 3

osmosis

Back 3

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

Front 4

active transport

Back 4

the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.

Front 5

heart

Back 5

hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles.

Front 6

atria

Back 6

ach of the two upper cavities of the heart from which blood is passed to the ventricles. The right atrium receives deoxygenated blood from the veins of the body; the left atrium receives oxygenated blood from the pulmonary vein.

Front 7

ventricles

Back 7

a hollow part or cavity in an organ, in particular.

Front 8

oxygenated blood

Back 8

The pulmonary circuit carries blood to the lungs to be oxygenated and then back to the heart. In the lungs, carbon dioxide is removed from theblood, and oxygen taken up by the haemoglobin in the red blood cells.

Front 9

deoxygenated blood

Back 9

Venous blood is deoxygenated blood which travels from the peripheral vessels, through the venous system into the right atrium of the heart.

Front 10

blood

Back 10

red liquid that comes out of your body when you cut yourself.

Front 11

plasma

Back 11

similar to the ventricles but different.

Front 12

red blood cells

Back 12

cells that are red and they almost are like the heart.

Front 13

platelests

Back 13

platelets an part in side your body that protects you from germs.

Front 14

white blood cells

Back 14

white cells that kill red blood cells.