Chemistry Unit 3 Study Guide
1. Understand and apply types of bonding.
A. Ionic bonding
* Understand what causes ionic bonding
* Write the formula unit or the name of an ionic compound
* Understand the properties of ionic compounds
* Identify the charge o
BIOLOGY Honors PERIOD 3
Purpose in life
By Elena Cruz
How does the water cycle work?
1. Evaporation, happens when the sun heats up the water in rivers, lakes
and oceans, and the water leaves in form of steam
2. Condensation, is when the wate
By Elena Cruz
All about the
Scientific name: Ailurus
Mass: 11 lbs (Adult)
6.)Ecological & Economical Value of Desert
gold and granite fields
oil, with the richest fields being located in the Persian
This rather small area contains 65% of the worlds
Saudi Arabia alone contains 25%
Chapter 9 Biology Study Guide
*Answer all questions in preparation for your upcoming quizzes and test. Answers will be
provided in class.*
REMINDER: GLYCOLYSIS QUIZ WED. 10/30, KREBS CYCLE QUIZ FRI. 11/1
1. Where do organisms get energy? (Found in 9.1
Chapter 8 Review
Take a moment to write down the
most important question you have
about one of the topics covered in
Gets wrapped around many
"Bringing Back Baby
To Clone or Not To
College of Life Sciences
University Of Maryland, College Park
INTRODUCTION / BACKGROUND
Cloning as a Topic of Public Concern
Until the mid-1990s, A
Cell division and cancer review
1. What type of cell undergoes meiosis?
2. Define homologous chromosomes. 2 chromosomes with similar structure
3. For each of the following state if the cell is haploid or diploid.
QUESTION # 1
Match the following.
F Individual chromosomes line up at the equator
A Homologous chromosomes pair up; crossing-over
G Centromere splits; sister chromatids move to
Protein Synthesis Review Worksheet
1. In DNA, adenine binds with _ and guanine binds with _.
2. In RNA, adenine binds with _ and guanine binds with _.
3. Name the 4 nitrogen bases on DNA. Name the 4 nitrogenous bases in RNA.
4. Transcription takes place i
Plasmolysis is the loss of water from the cell by osmosis,
and this is evident when the cell contents pull away from
the rigid cell wall as the water moves out.
Steps of Plasmolysis
Steps of Plasmolysis
Chemical Formulas Using the Metric System
Easier to use because it is
a decimal system
Every conversion is by some power of .
A metric unit has two parts
A prefix and a base unit.
prefix tells you how many times to
divide or multiply by 10.
Naming compounds and writing chemical formulas.
The second word (negative ion) is formed by changing the ending of the element name to
Writing proper Chemical formulas.
* Crisscross Method
Density, Mass and Volume
Which means 1 mL = 1 cm
1 L about 1/4 of a gallon - a quart
1 mL is about 20 drops of water or 1 sugar cube
weight is a
Mass is the
amount of matter.
1gram is defined as the mass of 1 cm3 of water at 4 C.
Moles and Molar Mass
How do you measure how much in Chemistry?
We count chemical pieces in
1 mole is 6.02 x 1023 particles.
(think of it like a very large dozen)
Ex: 1 doz = ? bricks ? pencils
Ex: 1 mol =? bricks ? pencils
Problem Solving with Dimensional Analysis
Identify the unknown
What is the problem asking for
List what is given and the equalities needed to solve the problem.
Ex. 1 dozen = 12
Plan a solution
Equations and steps to solve
Knowledge for knowledges sake. Research to learn how something works. May lead to and
Ex: Research for synthetic rubber 1940s
Research directed to a specific goal or application.
Ex: Silly Putty 1950s
Significant Figures and Significant Digits
Questions with significant figures:
50 is only 1 significant figure
if it really has two, how can I write it?
A zero at the end only counts after the decimal place.
5.0 x 101
now the ze
Single and Double Replacement Reactions
Types of Reactions
There are millions of reactions.
Cant remember them all.
Fall into several categories.
* We will learn 5 basic types
Types of Measurement in Chemistry
Quantitative- (quantity) use numbers to describe
Qualitative- (quality) use description without numbers
Which do you Think Scientists would prefer
Quantitative- easy check
Easy to agre
Writing and Balancing Equation
In a chemical reaction
The atoms are rearranged.
* But the atoms arent created nor destroyed.
( in other words: whatever you start with you end with )
* this is a LAW Law
Preparation & Planning of a Circuit
Model Space is the "space" in which most of an AutoCAD drawing resides. Even
though it didn't have a "space" designation attached to it until Release 11, Model Space has
been around since AutoCAD was first
Modeling a Schematic of a Parallel Circuit
If, for example, drawing sheets of a Model will be plotted with the Model scaled at
1:100, and the user wants text to be plotted at 1/8", that text must be drawn 100/8" or 12.5"
(1.04') high in Mode
Steps to Creating a Series Circuit in Lab
When the project has progressed to the point that check plots are needed, it's time to think
about creating one or more sheets in Paper Space.
Step 1 - Switch to Paper Space - This is accomplished wi
Designing Loop Steps
1. Identify the Problem - Describe the back story, the problem at hand, and why it needs to be
2. Design Brief - Create a design brief which describes exactly what you are going to have
accomplished at the comple
Alternating and Direct Currents
AC/DC Alternating Current vs. Direct Current
DC Usually produced by batteries, fuel cells, and solar cells. Electricity always flows
in one direct from negative to positive.
AC Usually produced from a power pl
Electrical Numbering Outputs
Whats used in digital circuits?
Each binary number represents one bit
8 bits = 1 byte
How do you get
Resistors and Switches
A lead-acid battery has a nice feature - the reaction is completely reversible. If you apply
current to the battery at the right voltage, lead and lead dioxide form again on the plates
so you can reuse the battery over
Many complete electric circuits contain six parts:
An energy source to provide the voltage needed to force current (electrons) through
Conductors through which the current can travel.
Insulators to confine t
Magnetism and Electromagnetism
Electronics Technology 1
Magnetism and Magnets
Magnetism is a force field that acts on some materials but not on others.
Physical devices that posses this force are called magnets.
Magnets we use today are manu