9-30-08 HBio Period 2+3

In Class:
Quiz on lab reading and proteins
Did nucleic Acid Notes
Did a short nucelic acid worksheet
Started Nucelic acid Project

HW:
Work on HW packets
Come ready to do a lab next class
Reminder your HW packets will be due Monday and your test is Wednesday

9-29-08 HBio Period 6

In Class:
Quiz on lab reading and proteins
Did nucleic Acid Notes
Did a short nucelic acid worksheet
Started Nucelic acid Project

HW:
Work on HW packets
Come ready to do a lab next class
Reminder your HW packets will be due Friday and your test is Tuesday

HBio Period 2+3

In Class:
Took a lipid quiz
Took notes on proteins and watched some animations
Handed out protein projects and started them in class

HW:
Read chapter section on necleic acids
Read macromolecules lab using study sheet and paying attention to bolded words
Work on HW packets
Study for quiz you are having next class on: lab reading and proteins
Enjoy your weekend!

9-25-08 HBio Period 6

In Class:
Took a lipid quiz
Took notes on proteins and watched some animations
Handed out protein projects and started them in class

HW:
Read chapter section on necleic acids
Read macromolecules lab using study sheet and paying attention to bolded words
Work on HW packets
Study for quiz you are having next class on: lab reading and proteins

9-24-08 Hbio Period 2+3

In Class:
Lipids notes
Passed back Ch 2-3 exams to look at
Started lipids projects/readings

HW:
Read pages 77-85 to prepare for next classes lecture
Prepare for a lipid quiz next class........SHORT
Work on your HW packets

9-23-08 HBio Period 6

In Class:
Lipids notes
Passed back Ch 2-3 exams to look at
Started lipids projects/readings

HW:
Read pages 77-85 to prepare for next classes lecture
Prepare for a lipid quiz next class........SHORT
Work on your HW packets

HBio Period 2+3 9-22-08

Nothing Collected Today

In Class:
POP quiz on sugar reading
Sugar notes
Started sugar project

HW:
Work on your HW packets
Read pages 74-77 in your textbook!

9-19 HBio Period 6

Nothing Collected Today

In Class:
POP quiz on sugar reading
Sugar notes
Started sugar project

HW:
Work on your HW packets
Read pages 74-77 in your textbook!

9-18-08 HBio Period 2-3

In Class:
Notes on isomers along with an isomer WS
Completed the isomer WS in class and went over it as a class
Notes on functional groups along with a handout that you can use on the test
Notes on hydrolysis reactions

HW:
Work on HW packet
Read pages 69-74 in book....expect a POP quizTentative Dates for Chapter 4-5

See Tentaive Dates Posting for all the due dates of items in chapter 4-5!

tentative dates chapter 4-5 Period 2-3 HBio

Tentative Dates for Chapter 4-5 (note these are subject to change):

10/2 Macrmolecules lab day
10/6 HW packets due
10/8 Chapter 4-5 test

Period 6 important Dates Chapter 4-5

Tentative Dates for Chapter 4-5 (note these are subject to change):

10/1 Macrmolecules lab day
10/3 HW packets due
10/7 Chapter 4-5 test

9-17 Period 6 HBIO

In Class:

1. Notes on isomers along with an isomer WS
2. Completed the isomer WS in class and went over it as a class
3. Notes on functional groups along with a handout that you can use on the test
4. Notes on hydrolysis reactions

HW:

1. Work on HW packet
2. Read pages 69-74 in book....expect a POP quiz

Tentative Dates for Chapter 4-5 (note these are subject to change):

1. 10/1 Macrmolecules lab day
2. 10/3 HW packets due
3. 10/7 Chapter 4-5 test

9-16-08 HBio Period 2+3

Collected:
Outlines of pages 47-51

In Class:
Took your Chapter 2+3 Test
Checked off journals
Just a reminder, if you were absent the day of the test it will be expected that you take the test DURING CLASS TIME when we meet again.

HW:
Start reading Chapter 4....
Start working on the Ch 4+5 HW packet.....once the test grades are posted you will have your current grade in the class. If it is an "A" or "A+" you do not have to do the Ch 4+5 HW packet. Grades will be posted BY Thursday!!!!!!

9-15-08 Period 6 Hbio

Collected:

1. Outlines of pages 47-51

In Class:

1. Took your Chapter 2+3 Test.
2. Just a reminder, if you were absent the day of the test it will be expected that you take the test DURING CLASS TIME when we meet again.
3. Checked off your journals. if you were absent please turn these into me the next time you are in class.

HW:

1. Start reading Chapter 4....
2. Start working on the Ch 4+5 HW packet.....once the test grades are posted you will have your current grade in the class. If it is an "A" or "A+" you do not have to do the Ch 4+5 HW packet. Grades will be posted BY WED!!!!!!

Pre-Test Answers

MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question and record your answer on a Scantron Sheet. GOOD LUCK!

1) Which four elements make up approximately 96% of living matter?

A) carbon, sodium, chlorine, nitrogen

B) carbon, sulfur, phosphorus, hydrogen

C) oxygen, hydrogen, calcium, sodium

D) carbon, hydrogen, nitrogen, oxygen

E) carbon, oxygen, sulfur, calcium

2) Which of the following is a trace element that is required by humans and other vertebrate animals?

A) nitrogen

B) calcium

C) iodine

D) carbon

E) oxygen

3) Which of the following statements is false?

A) Atoms of the various elements differ in their number of subatomic particles.

B) All atoms of a particular element have the same number of protons in their nuclei.

C) The neutrons and protons present in the nucleus of an atom are almost identical in mass, each has a mass of about 1 dalton.

D) An atom is the smallest unit of an element that still retains the properties of that element.

E) Protons and electrons are electrically charged particles, each has one unit of negative charge.

4) Each element is unique and different from other elements because of its

A) atomic mass.

B) atomic weight.

C) atomic number.

D) mass weight.

E) mass number.

5) The mass number of an element can be easily approximated by adding together the number of _________ in an atom of that element.

A) protons and neutrons

B) energy levels

C) protons and electrons

D) neutrons and electrons

E) isotopes

6) What is the approximate atomic mass of an atom with 16 neutrons, 15 protons and 15 electrons?

A) 15 daltons

B) 16 daltons

C) 30 daltons

D) 31 daltons

E) 46 daltons

7) The nucleus of a nitrogen atom contains 7 neutrons and 7 protons. Which of the following is a correct statement concerning nitrogen?

a.The nitrogen atom has a mass number of approximately 7 daltons and an atomic mass of 14.

b. The nitrogen atom has a mass number of approximately 14 daltons and an atomic mass of 7.

c. The nitrogen atom has a mass number of 14 and an atomic mass of 7 grams.

d.The nitrogen atom has a mass number of 7 grams and an atomic number of 14.

e.The nitrogen atom has a mass number of 14 and an atomic mass of approximately 14 daltons.

8) Oxygen has an atomic number of 8 and a mass number of 16. Thus, the atomic mass of an oxygen atom is

a. exactly 8 grams.

b. exactly 8 daltons.

c. approximately 16 grams.

d. approximately 16 daltons.

e. 24 amu (atomic mass units).

9) Calcium has an atomic number of 20 and an atomic mass of 40. Therefore, a calcium atom must have

A) 20 protons.

B) 20 electrons.

C) 40 neutrons.

D) A and B are correct.

E) A. B and C are correct.

10) Different atomic forms of an element containing the same number of protons but a different number of neutrons are referred to as?

a. ions

b. isotopes

c. neutronic atoms

d. isomers

e. radioactive atoms

11) How do isotopes of the same element differ from each other?

A) number of protons

B) number of electrons

C) number of neutrons

D) valence electron distribution

E) amount of radioactivity

12) One difference between carbon-12 and carbon-14 (C) is that carbon-14 has

A) 2 more protons than carbon-12.

B) 2 more electrons than carbon-12.

C) 2 more neutrons than carbon-12.

D) A and C are correct.

E) B and C are correct.

13) Two isotopes of the same element will have different numbers of

a. protons

b. neutrons

c. electrons

d. protons and neutrons

e. neutrons and electrons

14) Electrons exist only at fixed levels of potential energy. However, if an atom absorbs sufficient energy, a possible result is that

A) an electron may move to an electron shell farther out from the nucleus.

B) an electron may move to an electron shell closer to the nucleus.

C) the atom may become a radioactive isotope.

D) the atom would become a positively charged ion or cation.

E) the atom would become a negatively charged ion or anion.

15) The atomic number of neon is 10. Therefore, an atom of neon

A) has 8 electrons in its outer electron shell.

B) is inert.

C) has an atomic mass of 10 daltons.

D) only A and B are correct.

E) A, B, and C are correct.

Figure 2.1

16) Refer to figure 2.1. Which drawing depicts the electron configuration of an atom of neon (Ne) ?

A) A

B) B

C) C

D) D

E ) E

17) Refer to figure 2.1. Which drawing depicts the electron configuration of oxygen (O) ?

A) A

B) B

C) C

D) D

E) E

18) Refer to figure 2.1. Which drawing is of an atom with the atomic number of 6?

A) A

B) B

C) C

D) D

E) E

19) Refer to figure 2.1. Which drawing depicts an atom that is inert or chemically unreactive?

A) A

B) B

C) C

D) D

E) E

20) The reactive properties or chemical behavior of an atom depend on the number of

A) valence shells in the atom.

B) orbitals found in the atom.

C) electrons in each orbital of the atom.

D) electrons in the outer valence shell in the atom.

E) hybridized orbitals in the atom.

.

Figure 2.2

21) Refer to Figure 2.2. How many electrons does nitrogen have in its valence shell?

a. 2

b. 5

c. 7

d. 8

e. 14

22) What is the maximum number of electrons in the 1s orbital of an atom?

a. 1

b. 2

c. 3

d. 4

e. 8

23) What is the maximum number of electrons in a 2p orbital of an atom?

a. 1

b. 2

c. 3

d. 4

e. 5

24) A covalent chemical bond is one in which

A) electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged.

B) protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.

C) outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms.

D) outer-shell electrons of one atom are transferred to the inner electron shells of another atom.

E) inner-shell electrons of one atom are transferred to the outer electron shell of another atom.

25) What do atoms form when they share electron pairs?

a. elements

b. ions

c.aggregates

d. isotopes

e. molecules

26) What is the maximum number of covalent bonds an element with atomic number 16 can make with hydrogen, an atomic number of 1?

a. 1

b. 2

c. 3

d. 4

e. 5

27) A molecule of carbon dioxide (CO₂) is formed when one atom of carbon (atomic number 6) is covalently bonded with two atoms of oxygen (atomic number 8). What is the total number of electrons that must be shared between the carbon atom and the oxygen atoms in order to complete the outer electron shell of all three atoms?

a. 1

b. 2

c. 3

d. 4

e. 5

28) When two atoms are equally electronegative, they will interact to form

A) equal numbers of isotopes.

B) ions.

C) polar covalent bonds.

D) nonpolar covalent bonds.

E) ionic bonds.

29) What results from an unequal sharing of electrons between atoms.

A) a nonpolar covalent bond

B) a polar covalent bond

C) an ionic bond

D) a hydrogen bond

E) a hydrophobic interaction

30) A covalent bond is likely to be polar when

A) one of the atoms sharing electrons is more electronegative than the other atom.

B) the two atoms sharing electrons are equally electronegative.

C) the two atoms sharing electrons are of the same element.

D) it is between two atoms that are both very strong electron acceptors.

E) the two atoms sharing electrons are different elements.

31) What is the difference between covalent bonds and ionic bonds?

A) Covalent bonds involve the sharing of protons between atoms, ionic bonds involve the sharing of electrons between atoms.

B) Covalent bonds involve the sharing of neutrons between atoms, ionic bonds involve the sharing of electrons between atoms.

C) Covalent bonds involve the sharing of electrons between atoms and ionic bonds involve the electrical attraction between atoms

D) Covalent bonds involve the sharing of protons between atoms, ionic bonds involve the sharing of neutrons between atoms.

E) Covalent bonds involve the transfer of electrons between atoms, ionic bonds involve the sharing of neutrons between atoms.

32) What results from a transfer of electron(s) between atoms?

A) a nonpolar covalent bond

B) a polar covalent bond

C) an ionic bond

D) a hydrogen bond

E) a hydrophobic interaction

33) What is a van der Walls interaction?

a. The weak attraction between the electrons of one molecule and the electrons of a nearby molecule.

b. The weak attraction between the nucleus of one molecule and the electrons of a nearby molecule.

c. The weak attraction between a polar molecule and a nearby non-polar molecule.

d. The weak attraction between a polar molecule and a nearby molecule which is also polar.

e.The weak attraction between a nonpolar molecule and a nearby molecule which is also nonpolar.

34 In a single molecule of water, the two hydrogen atoms are bonded to a single oxygen atom by

A) hydrogen bonds.

B) nonpolar covalent bonds.

C) polar covalent bonds.

D) ionic bonds.

E) van der Waals interactions.

35 Which of the following is true when an ice cube cools a drink?

A) Molecule collisions in the drink increase.

B) Kinetic energy in the drink decreases.

C) A calorie of heat energy is transferred from the ice to the water of the drink.

D) The specific heat of the water in the drink decreases.

E) Evaporation of the water in the drink increases.

36) Which bonds must be broken for water to vaporize?

A) ionic bonds

B) nonpolar covalent bonds

C) polar covalent bonds

D) hydrogen bonds

E) covalent bonds

37) Why does ice float in liquid water?

A) The liquid water molecules have more kinetic energy and thus support the ice.

B) The ionic bonds between the molecules in ice prevent the ice from sinking.

C) Ice always has air bubbles that keep it afloat.

D) Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of liquid water.

E) The crystalline lattice of ice causes it to be denser than liquid water.

38) Which of the following solutions has the greatest concentration of hydroxide ions [OH^-]?

A) lemon juice at pH 2

B) vinegar at pH 3

C) tomato juice at pH 4

D) urine at pH 6

E) seawater at pH 8

39) What property of water is responsible for water transport in plants?

A) moderation of temperature

B) insulation

C) its versatility as a solvent

D) cohesion

E) its role as a buffer

Journal Entries that will be checked off with test

You must have the following journal entries in order by date when you take the ch. 2 and 3 exam.......

HBIO Class Opening Journal 9-3 and 9-4
• Please start your journal with today’s date!
• Please be sure to answer each question in detail and number all the questions

1) How many electrons does Ne have?
2) How many electrons shells?
3) How many unpaired electrons are there?





HBIO Class Opening Journal 9-5 and 9-8
• Please start your journal with today’s date!
• Please be sure to answer each question in detail and number all the questions

1) A nitrogen atom has 7+ and the most common isotope of nitrogen has 7 neutrons. A isotope of nitrogen has 8 neutrons. What is the atomic number and mass number of this isotope that has 8 neutrons? Write as a chemical symbol with a subscript and superscript.
2) Explain why salt is a compound while the oxygen we breathe is not.
3) What are the 6 most common elements in biology?



HBIO 9-9 and 9-10
• Please start your journal with today’s date!
• Please be sure to answer each question in detail and number all the questions
True or False
1) Energy is anything that occupies space and has weight.
2) Matter can exists as a solid, liquid, or gas.
3) Sulfur and phosphorus are SOME of the six most common elements in living organisms.
4) Isotopes of an element contain the same number of protons and different numbers of electrons.
5) Isotopes of an element contain the same number of protons and different numbers of neutrons.
6) Most isotopes are stable, but some are unstable and break apart, releasing radiation and are known as radioactive isotopes
7) Electrons in different electron shells contain more energy if they are further from the nucleus.
8) Atoms can interact to give up, accept, or share electrons to produce a filled outer shell.
9) Ions dissolve easily in water because water is polar in nature.
10) Water moderates the temperatures on earth because it can absorb and release large amounts of heat.



HBio 9-11 and 9-12
• Please start your journal with today’s date!
• Please be sure to answer each question in detail and number all the questions

1) One liter of a solution of pH 2 has how many more hydrogen ions (H+) than 1 L of a solution of pH 6?
A) 4 times more
B) 400 times more
C) 4,000 times more
D) 10,000 times more
E) 100,000 times more

2) One liter of a solution pH 9 has how many more hydroxide ions (OH-) than 1 L of a solution of pH 4?
A) 5 times more
B) 100 times more
C) 1,000 times more
D) 10,000 times more
E) 100,000 times more

3) Which of the following statements is true about buffer solutions?
A) They maintain a constant pH when bases are added to them but not when acids are added to them.
B) They maintain a constant pH when acids are added to them but not when bases are added to them.
C) They maintain a constant pH of exactly 7 in all living cells and biological fluids.
D) They maintain a relatively constant pH.
E) They are found only in living systems and biological fluids.

Friday 9-12-08 (JENKINS WAS OUT) Period 2+3

Collected:
Collected and graded HW Packets
Collected and graded Class Packets

In Class:
Did a pretest in partners, answers will be posted on the blog

HW:
Finish outline pages 47-51 Due Tuesdat
Prepare for the test happening Monday
Bring your journal enteries to be checked off during the test, Journal should be in order by date

Wed P 2 and 3 HBIO 9-10-08

Nothing collected today in class

During Class:
Water Notes
Finished Class packets
Talked about sub plans you will follow when Jenkins is absent on Friday

HW:
Finish class packet DUE Fridayyou should have had enough class time to complete it OL Pages 47-51 in book........DUE Tuesday so you can use it to study for the test!
Finish HW Packet......due Friday

HBIO P 6 (Jenkins was out) THURSDAY 9-11-08

Collected:
Collected and graded HW Packets
Collected and graded Class Packets

In Class:
Did a pretest in partners, answers will be posted on the blog

HW:
Finish outline pages 47-51 Due Monday
Prepare for the test happening Monday
Bring your journal enteries to be checked off during the test, Journal should be in order by date

9-9-08 HBio Period 6

Nothing collected today in class

During Class:
Water Notes
Finished Class packets
Talked about sub plans you will follow when Jenkins is absent on Thursday

HW:
Finish class packet DUE THURDAYyou should have had enough class time to complete it
OL Pages 47-51 in book........DUE Monday so you can use it to study for the test!
Finish HW Packet......due THURSDAY!

9-8-08 HBIO Period 2-3

Collected:
Collected outlines

In Class:
Quiz on page 32-39 and rules
Notes to finish Chapter two
Worked on class packets

Homework:
Just a reminder to read the book
Work on your HW packet that will be due Friday. 9-12-08

9-5-08 Period 6 HBio

Collected:

1. Collected outlines

In Class:

1. Quiz on page 32-39 and rules
2. Notes to finish Chapter two

Homework:

1. Just a reminder to read the book
2. Work on your HW packet that will be due Thurs. 9-11-08
3. Have a great weekend!

9-4-08 HBio Period 2+3

9-3-08 HBIO 6
Items turned in/collected:
Collect 3x5
Collect Lab and course overview with sigs
In Class:
passed out HW packets
Passed out Class packets
finish class overview/rules
Notes up to Chemical Bonds
Classwork:
Self check P. 34-39
Class packets up to 2.6
HW:
Outline pages 41-end of book
Work on HW packets
Prepare for quiz next class that is on rules/overview info and pages 32-39 in book

9-3-08 HBIO 6

Items turned in/collected:

1. Collect 3x5
2. Collect Lab and course overview with sigs

In Class:

1. passed out HW packets
2. Passed out Class packets
3. finish class overview/rules
4. Assigned Chores
5. Got Emails
6. Notes up to Chemical Bonds

Classwork:

1. Self check P. 34-39
2. Class packets up to 2.6

HW:

1. Outline pages 41-end of book
2. Work on HW packets
3. Prepare for quiz next class that is on rules/overview info and pages 32-39 in book

Rules that will be on your Rule Quiz

Here are the 4 class rules that will be on your quiz along with info in the course overview.


Mrs. Jenkins FOUR Classroom Rules

1) Arrive on time and ready to LEARN at bell
• In assigned seat doing journal opening
• Late arrivals will all need a valid pass
2) Follow School Rules in Class
• No gum
• No cell phones
• Dress code
• Language
• Respect for others, etc.
3) Use class time appropriately
• Do not work on HW for other classes/crosswords/etc.
• Complete the task at hand
• Use class time to get the extra help/clarification you need from the teacher
• Collaborate responsibly with your peers as this is the best way for some to learn
4) Come to class prepared
• Bathroom emergencies are dealt with
• You have your book every day (preparedness may be a HW assignment at random)
• Your “personal” business with Jane Towle, friends, Mrs. Sinnott and others are dealt with ahead of time and do not need to be dealt with in class
• No copying or finishing HW while in class, if I see you working on it in class the day it is due it is a ZERO