Chapter 4: Cell Structure

Question 1

What is cell theory?

Answer 1

every living thing consists of one or more organisms

Question 2

components of cells?

Answer 2

plasma membrane, cytoplasm, DNA, RNA, ribosomes

Question 3

phospholipid bilayer?

Answer 3

helps membranes be selectively permeable

Question 4

fluid mosaic model?

Answer 4

proteins and other molecules move within bilayer

Question 5

functions of membranne

Answer 5

recognition, receptor, transport

Question 6

the nucleus?

Answer 6

contains/protects DNA, nuclear envelope controls, access to DNA

Question 7

endomembrane system?

Answer 7

vesicles, smooth ER, Golgi Body

Question 8

vesicles?

Answer 8

sacs that transport, store or break down substances

Question 9

Rough ER?

Answer 9

ribosomes attached, folds proteins

Question 10

Smooth ER?

Answer 10

no ribosomes, makes lipids, breaks down toxins

Question 11

Golgi Body?

Answer 11

put finishing touches on proteins

Question 12

mitochondria?

Answer 12

produces ATP by aerobic cellular respiration

Question 13

Plastids?

Answer 13

function in photosynthesis, storage, or pigmentation

Question 14

cytoskeleton?

Answer 14

functions to reinforce, organize and move cell structure

Question 15

Extracellular Matrix

Answer 15

secreted on outside of cell

Question 16

types of cell junctions?

Answer 16

tight, adhering, gap