Movement Across Membranes/Biological molecules

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/10

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

11 Terms

1
New cards

What are the features of cell membrane?

Phospholipid bilayer, proteins, cholesterol, selectively permeable.

2
New cards

What is diffusion?

Movement of molecules from high to low concentration.

3
New cards

What is Osmosis?

Diffusion of water across a membrane.

4
New cards

What is active transport?

Moves substances from low to high concentration using energy(ATP).

5
New cards

What molecule can move without a protein?

Small, nonpolar molecules (e.g O2 CO2)

6
New cards

Why do ions need protein to transport?

Ions are charged and cannot pass through the lipid bilayer without help.

7
New cards

What is facilitated diffusion?

Uses a protein to move substances down the concentration gradient (high to low).

8
New cards

What are amino acids?

Proteins building blocks

9
New cards

What are Lipids made out of?

Glycerol and fatty acids

10
New cards

DNA is a:

Nucleic acid

11
New cards

What is the role of an enzyme in metabolism?

Speeds up (catalyzes) biochemical reactions by lowering activation energy