2A Cells, Tissues, Organs & Systems Flashcards
1
Q
Cells
A
Building blocks of all living things
2
Q
Tissues
A
Made of similar cells
3
Q
Organs
A
Made of tissues
4
Q
Systems
A
Organs work together
5
Q
Diffusion
A
Movement of molecules from a higher to a lower concentration
6
Q
Digestion
A
Breaking down food into smaller pieces
7
Q
Absorption
A
Movement of small molecules into the blood
8
Q
Alveoli
A
Air sacs where gas exchange takes place in the lungs
9
Q
Arteries
A
Blood vessels that carry blood away from the heart
10
Q
Capillaries
A
Blood vessel where substances can move in and out of the blood
11
Q
Vein
A
Blood vessel that carries blood back into the heart.
12
Q
Brain
A
Controls the body, stores memories and controls personality.
13
Q
Heart
A
Pumps blood around the body
14
Q
Stomach
A
Stores and churns food - helps digestion
15
Q
Small Intestine
A
Where food is absorbed into the blood
