Lec 2, Cell Theory and Eukaryotic Cells

EARLY CELL THEORY, ________ (1839)

1. The cell is the basic _____ and _____ unit of life

2. All living organisms are composed of ___ or ____ cells

3. All cells arise only from division of ______ cells

MODERN CELL THEORY (3 tenets above + these)

1. An organism’s activity depends on the activity of its _____ cells

2. All or most energy flow occurs _____

3. The activities of cells are governed by ______ consisting of ______

4. All cells are of similar _____ and _____ composition

5. All living cells are descended from a ______ cell

Schwann, Schleiden, structural, functional, one, more, pre-existing, independent, within cells, genetic material, DNA, chemical, structural, common ancestor

What are the two types of cells?

Prokaryotic, Eukaryotic

Prokaryotes and eukaryotes both have:

1. ______ as a cell barrier

2. _______ aqueous fluid composition

3. ______ for protein synthesis

4. ______ that contains their genes

cell membranes, cytosol, ribosomes, DNA

What’s the difference between eukaryotes and prokaryotes?

1. Eukaryotes are more ______. The organelles are_______.

2. Eukaryotes have a ______. Prokaryotes have a _______.

3. Prokaryotes have _____ DNA

4. Prokaryotes are ______. Eukaryotes are ______.

complex, membrane-bound, nucleus, nucleal region, circular, tiny, large

A

Protein channel (transport protein)

B

Globular protein

C

Glycoprotein

D

Extracellular fluid

E

Carbohydrate

F

Hydrophillic heads

G

Phospholipid bilayer

H

Phospholipid molecule

I

Hydrophobic tails

J

Alpha-helix protein (integral protein)

K

Surface protein

L

Filaments of cytoskeleton

M

Globular protein (integral protein)

N

Peripheral protein

O

Glycolipid

P

Cholesterol

Q

Cytoplasm