×
Log in to StudySoup
Get Full Access to UWEC - Biology 221 - Study Guide
Join StudySoup for FREE
Get Full Access to UWEC - Biology 221 - Study Guide

Already have an account? Login here
×
Reset your password

UWEC / Biology / BIOL 221 / Why do we need to know chemistry to study biology?

Why do we need to know chemistry to study biology?

Why do we need to know chemistry to study biology?

Description

School: University of Wisconsin - Eau Claire
Department: Biology
Course: Foundations of Biology 1
Professor: Daniel herman
Term: Fall 2016
Tags: Biology, cells, Chemistry, atoms, and compounds
Cost: 50
Name: Foundations of Biology 1 - Exam 1 Study Guide
Description: These are questions to help you review for the exam from chapters 2,3, and 4 along with an answer key to check how you are doing.
Uploaded: 09/23/2016
4 Pages 53 Views 2 Unlocks
Reviews


Biology 221


Why do we need to know chemistry to study biology?



Exam 1 Study Guide

Short Answer

1. Why do we need to know Chemistry to study Biology?

2. What is the difference between a physical and a chemical reaction? 3. Why is water important in Biology?

4. What are the different states of water, what is the temperature range of each  state, and what happens to the Hydrogen bonds during each state? 5. List the 5 properties of water and a brief description of each property. 6. What makes a molecule organic?

7. What is the Cell Theory?

8. What are the functions of a cell wall?

9. What is the difference between the rough ER and the smooth ER? Match the Term with its Definition If you want to learn more check out Why does hamlet choose to act mad?

1. Matter

2. Atoms

3. Molecules


What are the different states of water, what is the temperature range of each state, and what happens to the hydrogen bonds during each state?



4. Compounds

5. Ion

6. Concentration

7. Glycosidic Bond

8. Energy

9. Organization

10.Information

11.Cell Matter

12.Molarity

13.

14.

15.

16.

17.

18.

19.

20.

21.

a) Amount of solute dissolved in a  unit amount of solution Don't forget about the age old question of How are radioactive isotopes used?

b) An atom that has gained or lost  one or more electrons We also discuss several other topics like How do attitudes change?

c) The smallest functional unit of  mass

d) Genes present in the genome  and the different expressions of  those genes


What is the difference between the rough er and the smooth er?



e) Anything that has mass and  occupies space

f) Arrangement of molecules and  structures

g) A covalent bond linking two  disaccharides We also discuss several other topics like What do you mean by hydrogenation?

h) Each cell type produces a  unique set of molecules If you want to learn more check out How matter is constructed?

i) Molecule composed of two or  more different elements If you want to learn more check out How do we diagnose cancer?

j) Number of moles of a solute  dissolved in one liter of solution k) Required to synthesize  

molecules and structures

l) Two or more atoms bonded  together

22.

23.

24. Multiple Choice

1. What is Avagadro’s number?

a. 6.022*1023 

b. 6.023*1022 

c. 6.203*1023 

2. What happens to amphipathic molecules in water? a. They turn their polar tails out and their nonpolar heads in b. They turn their polar heads out and their nonpolar heads in c. Nothing they are just like any other molecule

3. What is cohesion?

a. The attraction of water molecules to each other

b. The attraction of water molecules to non-neutral surfaces c. The attraction of water molecules to salt

4. What kind of bonds can Carbon form?

a. Single

b. Double

c. Triple

d. All of the above

5. What is the pH of pure water?

a. 10-6 

b. 107 

c. 10-7 

6. Lipids are…

a. Polar

b. Nonpolar

c. Sometimes both

7. DNA and RNA are both types of what?

a. Proteins

b. Nucleic Acids

c. Amino Acids

8. Which is not a Prokaryotic cell shape?

a. Rod shapes bacilli

b. Sphere shaped cocci

c. Comma shaped spirochaetes

25. True or False

1. A cation is an atom with a negative charge.

2. Valence electrons are on the innermost shell of the atom. 3. Atoms are the most stable when their outermost shell is not full. 4. An aqueous solution does not involve water.

5. Bases are substances that bind Hydrogen ions.

6. Carbohydrates are linked by Peptide bonds.

7. Anfinsen’s Dogma is a term related to starches.

8. Ribosomes are not cytoplasmic structures.

Biology 221

Exam 1 Study Guide Answer Key

Short Answer

1. We need to know Chemistry to study Biology because the activity of living  organisms involve many chemical processes.

2. A physical reaction is a change of state, while a chemical reaction is a change that creates a new substance.

3. Water is important in Biology because it takes on many different roles. Water  can create the perfect living environment, transfer nutrients around the body, be used as a solvent, and also act as a temperature buffer.

4. The different states of water

a. Solid (ice) 0C

i. Hydrogen bonds form complexes

b. Liquid 0c < water < 100C

i. Transient formation/breaking of hydrogen bonds

c. Gas (water vapor) 100C

i. Heat breaks hydrogen bonds and allows them to escape

5. The five properties of water

a. Heat of vaporization

i. Heat required to vaporize 1m of a substance at its boiling point b. Heat of fusion

i. Amount of heat energy that must be released to change from  liquid to solid

c. Specific heat

i. Amount of heat required to raise the temperature of 1g of a  

substance 1C

d. Heat capacity

i. Amount of heat required to raise the temperature of an entire  object or substance

e. Colligative properties

i. Properties that depend only on the total number of dissolved  solutes

6. What makes a molecule organic is that it is carbon containing and essential  for life.

7. The cell theory is that all living organisms are composed of one or more cells  and that new cells only come from preexisting cells through cell division 8. The functions of a cell wall are to give the cell shape, protect from viruses  and bacteria, and survive bad living conditions.

9. The differences between smooth and rough ER are that the smooth ER is for  the metabolism of harmful molecules, storage of calcium, and lipid synthesis,  while the rough ER is for protein sorting, insertion of proteins and  glycosylation.

Match the Term with its Definition

1. E

2. C

3. L

4. I

5. B

6. A

7. G

8. K

9. F

10.D

11.H

12.J

Multiple Choice

1. A

2. B

3. A

4. D

5. C

6. B

7. B

8. C

True or False

1. False, a cation is an atom with a positive charge

2. False, valence electrons are found on the outermost shell of the atom 3. False, atoms are the most stable when their outermost shell is all the way full 4. False, an aqueous solution is made with water

5. True

6. False, carbohydrates are linked by glycosidic bonds

7. False, Anfinsen’s Dogma is a term related to proteins and amino acids 8. False, ribosomes are a cytoplasmic structure

Page Expired
5off
It looks like your free minutes have expired! Lucky for you we have all the content you need, just sign up here