warm up #4 10/10/12

Warm Up #4 10/10/12

1) What are the 3 things all cells have in common?

2) Label the Atom.

3) Convert 45 dg to Hg.

4) Which macromolecule is found in the cell wall?

9 Weeks Exam

Review Sheet

1) what is the scientific method?

Steps taken to solve a problem

2) What is inference?

Common sense, stuff you already know

3) What is a hypothesis? How is it written?

Possible solution, If…then statement

4) Place the following scientific method steps in order

Observation, Hypothesis, Experiment, Collect Data, Analyze Data, Conclusions, Theory

5) What “things” should you consider when making an obeservation?

Your 5 senses (hearing, sight, taste, touch, smell)

6)Mr. Krabs created a special sauce for crabby patties at the Krusty Krab to boost sales. He asked 50 customers to try the crabby patties with his new sauce. He had 25 customers (Group A) eat a crabby patty with the new sauce. The other 25 (Group B) also received a crabby patty but it did not come with the special sauce. Both groups were told that they were getting the crabby patties with the new sauce. After eating the crabby patties, 20 customers in Group A and 5 customers in Group B reported liking the new crabby patties better.

A. What can the hypothesis be?B. What is the problem?

C. List the independent variable.D. List the dependent variable.

E. What is one control in this experiment?F. What is the sample size?

– A. What can the hypothesis be?• If special sauce is placed on the krabby patties,

then they will sell more of them.

– B. What is the problem?• He hopes the special sauce will boost the sales

– C. List the independent variable.• Special sauce

– D. List the dependent variable.• Where people like it or not

– E. What is one control in this experiment?• Group size

– F. What is the sample size?• 50 people

7) What is the system of measurement we use in biology called?

Metric system

8) List the measurement for liquids, lengths and masses.

Liters= Liquids, Masses= Grams, Lengths= Meters

9) What is 5 cm in m?.05 m

10) What is 15 KL in dL?

150,000 dL

11) What is 8 Dg in mg?

80,000 mg

12) Label the numbered parts on the microscope.

Unit 2

1) Draw an atom and label it.

2) Ca has an atomic number of 20 and a mass of 40.078. Complete the table below.

# Protons # Electrons # Neutrons

3) Identify the products and reactants in the follow:

2H2O + K2O 2KH2 + O4

Reactants Products

4) List the pH number for the following:

weak acids, strong acids, weak bases,

strong bases, and neutral.

Weak acid= 6, strong acid= 0, weak base= 8, strong base = 14, neutral = 7

5) What is cohesion and adhesion?

Cohesion= water sticking to water

Adhesion= water sticking to other things

6) Why is water the universal solvent?

Water can dissolve most things over time

7) What does it mean that water is polar?

It has positive and negative ends

8) To make tea, you place a tea bag into a cup of water and add sugar. What are the solutes and solvents.

Sugar and Tea= Solutes

Water = Solvent

9)Label the pictures of macromolecules.

AB

CD

10) What do enzymes do?

Speed up reactions

11) What does a buffer do?

Stops pH from changing

12) An isotope is an element that has a different number of _____.

Neutrons

• Unit 3

1) What are the 2 types of cells? What are their basic differences?

Prokaryotes and Eukaryotes, One has a nucleus and organelles, one is very simple

2) In general, what does the cell theory state?

- Cells are the basic unit of life

3) Who are the three scientists that created the cell theory?

- Virchow, Schwann, Schleiden

4) List 4 of the 8 characteristics of life.

Ability to reproduce, grow and develop, DNA, respond to stimuli

5) What type of cell is picture A?

-Plant Cell, Eukaryote

6) What type of cell is picture B?

-Animal Cell, Eukaryote

You will get two index cards to put whatever you want on for your test tomorrow.

When you come in tomorrow, you will turn in the study guide before the test

For the remainder of class

and for Homework

Other Words to know

• From Unit 3 Vocab List:– Prokaryote– Eukaryote– Flagella– Cell wall– Organelle

YOU WILL ALSO HAVE TO IDENTIFY PICTURES OF PROKARYOTES AND EUKARYOTES

Review Stations

• You will rotate around the lab to each station

• Start at the assigned station, with you assigned group

• Complete the worksheet for each station

• Turn it in when finished

9 Week Exam Cheat Sheet

• You have 10 minutes to place as much info on the index card as possible

• In 10 minutes, you will turn in the study guide and take the test

Warm-Up #10 10/13/11

1) What is 340 KL in L?

2) This organelle looks like a stack of pancakes. It processes and packages proteins for transport out of the cell.

3) T/F. The monomer of a lipid is an amino acid.

4) T/F. Only animal cells have centrioles.

5) What is this picture of?