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BIOL 120 Unit 2 Review

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What is a concentration gradient created by?

a)

The amount of solute within a solution.

b)

The similarity created in solute concentrations.

c)

A difference created in solute concentrations.

2.

In Diffusion, there is a ______ movement from high concentration regions to low concentration regions

a)

no

b)

net

c)

reverse

d)

slow

3.

In Osmosis, what is moving across the membrane, and what direction does it move in?

a)

Water; moving from low concentrations to high concentrations

b)

Water; moving from high concentrations to low concentrations.

c)

Solutes; moving from low concentrations to high concentrations

d)

Solutes; moving from high concentrations to low concentrations

4.

True or False: In a Hypertonic solution solute concentrations is higher outside the cell.

a)

True

b)

False

5.

Channel Proteins that open and close at a signal is called:

a)

Channel Protein Gates

b)

Gates

c)

Gated Channels

d)

Carrier Proteins

6.

Proteins that change shape to facilitate diffusion are called:

a)

Diffusion Carriers

b)

Carrier Proteins

c)

Gated Proteins

d)

Protein Chanels

7.

Which of the following molecules with have the highest permeability across the membrane?

a)

Glucose

b)

H2O

c)

O2

d)

Cl-

8.

Which of the following will have the lowest permeability across the membrane?

a)

Glucose

b)

O2

c)

H2O

d)

Cl-

9.

T/F: Active transport proteins don't require ATP

a)

True

b)

False

10.

We studied in the lab a variety of cells. If you looked into a microscope and saw a large, complex cell, with chromosomes condensed in a nucleus, you could assume this what kind of cell?

a)

Prokaryotic

b)

Eukaryotic

c)

Yeast

d)

None of these

11.

The small nuclear DNA molecules in prokaryotic cells are called:

a)

Ribosomes

b)

Ribozymes

c)

Plasmids

d)

Polypeptides

12.

The DNA in prokaryotes is:

a)

Condensed

b)

Un-condensed

c)

Supercoiled

d)

Loose

13.

Ribosome manufacture:

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Fats

14.

Long filaments that rotate to propel the cell are called:

a)

Fimbrae

b)

Flagella

c)

Cillia

d)

Ciliate

15.

The Smooth ER manufactures:

a)

Lipids

b)

Proteins

c)

Fats

16.

The side of the Golgi apparatus that faces the nucleus is called the ______ side ; the side that is towards the plasma membrane is called _______ side.

a)

cis; trans

b)

trans; cis

c)

across; towards

17.

Lysosomes are enzymes that are responsible for:

a)

transporting molecules through the cell and out of the cell

b)

hydrolyzing macromolecules for digestion and recycling

c)

shipping and exporting cells to their target locations

d)

tagging products to ensure they go where they are supposed to go.

18.

Where does photosynthesis take place in a plant?

a)

Stem cells

b)

Chloroplasts

c)

Mitochondria

d)

Algae

19.

What is the Endosymbiosis Theory and what bacteria were believed to be involved?

a)

Bacteria were engulfed and a mutually beneficial relationship evolved

b)

Bacteria were engulfed and a mutually beneficial relationship evolved; Mitochondria and Chloroplasts

c)

Bacteria were engulfed and a mutually beneficial relationship evolve; DNA and ribosomes

d)

Bacteria were engulfed and a mutually beneficial relationship evolved; all bacteria were involved.

20.

The Rough ER synthesizes:

a)

Proteins and Fats

b)

Lipids and Fats

c)

Proteins

d)

Ribosomes

21.

The function of the Golgi apparatus is:

a)

Protein synthesis

b)

Protein, Lipid, and carbohydrate processing

c)

Storage, digestion, and recycling

d)

ATP Production

22.

How many membranes does the Mitochondria contain

a)

1

b)

2 (double)

c)

3 (triple)

d)

4 (quadruple)

23.

What is the function of vacuoles?

a)

ATP synthesis

b)

digestion

c)

structural support

d)

Food and water storage

24.

Which of the following are used for cell shape, cell movement, and plays a role in cytokinesis (the division of cells)?

a)

Actin Filaments

b)

Microtubules

c)

Intermediate filaments

25.

________ is a motor protein that walks along a microtubule through a series of conformational changes as it hydrolyzes ATP

a)

Kinase

b)

Kinesin

c)

Vesicles

d)

Cilia