basic features of most cells in the body

Question 0

cytoplasm

Answer 0

fluid inside cell

Question 1

Soma

Answer 1

cell body

Question 2

extracellular fluid

Answer 2

fluid outside the cell

Question 3

membrane

Answer 3

lipids (fat molecules) w/hydrophobic cilia form double layered wall, 8nm thick

• permeable to H2O, O2, CO2, some fats
• generable impermeable to charged ions and larger molecules

Question 4

Ribosomes

Answer 4

site of PROTEIN PRODUCTION

• proteins serve many functions (structure, transport, metabolism, membrane gates, etc)
• DNA sends “messenger RNA” from Nucleus, mRNA attaches to Ribosomes, instructs protein production

Question 5

Mitochondria

Answer 5

• produce ATP (Adenosine triphosphate) whose breakdown frees energy to power cell functions
• tend to cluster where “active” (energy-requiring) processes occur