Chapter 3-cells

Question 1

Plasma membrane

Answer 1

Surrounds cell, controls what goes in and out of cell
Contains:
•Phospholipid (heads hydrophilic, tails hydrophobic)
•Cholesterol- strength
•Carbohydrate chains
•Protein- Chanels, receptors, and recognition

Question 2

Nucleus

Answer 2

•Nuclear envelope- surrounds nucleus
•nuclear pores- regulate passage to nucleus
•chromatin- for cell division
•Nucleolus- forms components of ribosomes
“Protein producing structure”

Question 3

Endoplasmic reticulum -rough ER

Answer 3

covered in ribosomes
Attached to nucleus
Creates proteins

Question 4

Smooth endoplasmic reticulum

Answer 4

Contains enzymes that make lipids and carbohydrates

Has no ribosomes

Question 5

Golgi apparatus

Answer 5

Transport vesicles bring protein from the rough ER to Golgi apparatus where they will be packed and sent off in secretory vesicles to be released from the cell
“Packing plant”

Question 6

Cytoplasm

Answer 6

Holds stuff in place

Fluid in the cell

Question 7

Centrioles

Answer 7

Just outside the nucleus
Perpendicular to each other
Play a role in cell division
Made of microtubules

Question 8

Lysosomes

Answer 8

Part of Golgi apparatus
Use amino acids to keep cells clean
“Garbage disposal”

Question 9

Mitochondria

Answer 9

“Powerhouse”
Two membranes-inner and outer
Christae filled with matrix
Convert enzymes into atp

Question 10

Cytoskeleton

Answer 10

Framework of the cell
Determines cell shape
Strength, mobility 
Can be 
microvilli(gut), 
cilia(respiratory)
flagella(sperm)