Chapter 3 Notes Part 2

Question 1

Molecules that are soluble in lipids

Answer 1

Pass through membrane easily

Question 2

Water molecules

Answer 2

Cannot pass through cell membrane

Question 3

Proteins in membrane

Answer 3

Scattered throughout lipid layer

Question 4

Proteins

Answer 4

Function as receptors that combine with specific kinds of molecules such as hormone

Question 5

Proteins form

Answer 5

Passageways for ion and molecules to cross the bilayer

Question 6

Examples of ions and molecules that cross the bilayer

Answer 6

Na+, K+, water

Question 7

Cytoplasm

Answer 7

Appears as a clear liquid with specks scattered throughout, but actually is filled with networks of membranes and other organelles where metabolic reactions take place

Question 8

Endoplasmic reticulum structure

Answer 8

Composed of membrane bound sacs and elongated canals

Question 9

Endoplasmic reticulum function

Answer 9

Transports materials in cell, provides attachment for ribosomes, synthesizes lipids

Question 10

Rough ER

Answer 10

Ribosomes attached

Question 11

Smooth ER

Answer 11

No ribosomes

Question 12

Ribosomes structure

Answer 12

Particle composed of protein and RNA molecules

Question 13

Ribosomes function

Answer 13

Sites of protein synthesis (make proteins)

Question 14

Golgi apparatus alternate name

Answer 14

Packaging center

Question 15

Golgi apparatus structure

Answer 15

Stacked and flattened membranous sacs

Question 16

Golgi apparatus function

Answer 16

Package protein molecules for transport and secretion

Question 17

Mitochondria structure

Answer 17

Membranous sacs with inner and outer layer

Question 18

Mitochondria function

Answer 18

Release energy from food molecules and transform energy into usable form; powerhouse of cell

Question 19

Lysosome structure

Answer 19

Spherical membranous sacs

Question 20

Lysosome function

Answer 20

Digest biological molecules (worn parts or foreign molecules)