Cell Structure Lab

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Pre Lab:

1. Read Ch. 4

2. Play Cellular Pusuit: http://highered.mcgraw-hill.com/classware/ala.do?isbn=0073403431&alaid=ala_1284283&showSelfStudyTree=true

Part 1: Organlles

1. Organelles concept Map (fill it in and either print it out or re-draw it): http://www.mhhe.com/biosci/genbio/enger_10/concept_maps/04_7_new.html

2. Make flashcards. Include the information from Table 4.3 (minimum) and a drawing/picture.

Cell Structure Lab

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3. Label the diagrams:

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Figure 4_04c

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Cell Structure Lab

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Part 2: Cell Membranes

1. Fill in concept map. Print it or re-draw it. http://www.mhhe.com/biosci/genbio/enger_10/concept_maps/04_3_new.html

2. Label Diagrams

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Part 3: Procaryotes versus Eukerotes

1. Fill in the below diagram

2. Understand and know Table 4.2

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3. What type of cell is this? How do you know (i.e. what are the distinguishing factors). Label a - ? and answer on separate sheet of paper.

Figure 4_12a

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Cell Type Why?

a.

b.

c.

d.

e.

f.

g.

h.

i.

j.

k.

l.

m.

n.

o.

p.

q.

r.

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Part 4: Understanding Diffusion

1. Watch the video on http://highered.mcgraw-hill.com/classware/ala.do?isbn=0073403431&alaid=ala_1276126&showSelfStudyTree=true

2. Answer the questions below

Question 1

Simple diffusion is defined as the movement of

A) molecules from areas of higher concentration to areas of lower concentration.

B) molecules from areas of lower concentration to areas of higher concentration.

C) water molecules across a membrane.

D) gas molecules across a membrane.

E) gas or water molecules across a membrane.

Question 2

When sugar is mixed with water, equilibrium is reached when

A) molecules of sugar stop moving.

B) water and sugar molecules are moving at the same speed.

C) the dissolved sugar molecules are evenly distributed throughout the solution.

D) there are the same number of water molecules as dissolved sugar molecules.

E) two tablespoons of coffee are added.

Question 3

The rate of diffusion is affected by which of the following?

A) temperature

B) size of molecules

C) steepness of the concentration gradient

D) A and B

E) A, B and C

Question 4

The molecules in a solid lump of sugar do not move.

A) True

B) False

Question 5

Diffusion is one of the processes whereby materials are exchanged between a cell and its environment.

A) True

B) False