Chap 3: Cell Structure & Function Flashcards
1
Q
Prokaryotic cells have…
A
no nucleus
2
Q
Eukaryotic cells have…
A
nucleus and organelles
3
Q
the nucleus:
A
stores DNA
4
Q
the rough ER:
A
makes proteins
5
Q
the smooth ER:
A
makes lipids
6
Q
the golgi complex:
A
packages proteins
7
Q
the mitochondria:
A
makes energy (ATP)
8
Q
the fluid mosaic model shows that:
A
Plasma membrane is flexible & has many parts
9
Q
Ways Molecules Cross the Membrane:
A
- Diffusion: Movement from high to low concentration
- Osmosis: Water diffusion
- Facilitated Diffusion: Uses proteins
- Active Transport: Uses energy
- Endo/Exocytosis: Moves large molecules
10
Q
function of the nucleolus:
A
makes ribosomes
11
Q
function of ribosomes:
A
makes proteins
12
Q
function of cilia:
A
move fluid past cells
13
Q
function of flagella
A
helps cells move
14
Q
what is the metabolic pathway
A
step-by-step chemical reactions
15
Q
what is feedback inhibition
A
stops a process when enough product is made
16
Q
enzymes function:
A
to speed up chemical reactions
17
Q
Catabolic vs. Anabolic
A
Catabolic: Breaks things down
Anabolic: Builds things up
