Scientific Method
Measurement
Cell Theory
Cell Organization
Cell Organelles
100
Name the steps of the scientific method in order
Identify the problem
Research
Hypothesis
Experiment
Collect and Analyze Data
Conclusion
100
What measures the mass of an object?
Triple beam balance or digital balance
100
Which scientist coined the word cell?
Hooke
100
What is the smallest living thing?
A cell
100
Which organelles is the gatekeeper and is made of a phospholipid bilayer?
Cell Membrane
200
Which variable is the measurable outcome?
The dependent variable
200
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24 mL
200
Which scientist worked with his dad to create the first rough microscope?
Janssen
200
Cells together make up what?
Tissues
200
What is a cell wall made of?
Cellulose
300
What are the variables that must be kept the same to make an experiment valid?
Constants
300
Convert 6.4 hg --> dg
6,400 dg
300
What did Van Leeuwenhoek do?
Father of the microscope- Compound microscope
& saw bacteria that he called animalcules in pond water
300
Tissues together make up?
Organs
300
Which organelle controls calcium release and makes lipids. Also is considered a highway of the cell?
Smooth ER
400
Why are controls used?
The control is the comparison that is used to make sure that the IV is causing the effect.
400
How do you measure the volume of a regular solid?
take length X width X height
400
What scientists contributed to the cell theory?
Schleiden, Schwann, and Virchow
400
Organs together make up?
Organ systems
400
What do the chloroplasts do?
What do the mitochondria do?
C: Photosynthesis--> make glucose from CO2 and H2O in the presence of light
M: Cellular respiration--> Make ATP energy from glucose
500
Dan wanted to know if the amount of salicylic acid in face wash effected the rate of clearing skin up. Dan used 4 different concentrations of this in his face wash forumula: 0 mL, 5mL, 10mL, and 15mL per 100 mL of wash. He had 100 people divided into 4 groups. Each participant washed their face twice a day with this wash, used the same lotion after, and washed their face the same way. The results showed that at the end of 30 days, 10 mL of the SA people saw a 90% clearning in their skin.
IV
DV
Control
Constants
Graph
IV: Salicylic acid
DV: Rate of skin clearing after 30 days
Control: 0 mL of SA
Constants: type of face wash, amount of face wash SA was added to, same # of people in each group, how many times they washed their face, how they washed their face, the same lotion used, and the same use time of 30 days.
Graph: Pie or Bar
500
What is the volume of the diver?
54-46 mL
8mL
500
What are the 3 postulates of the cell theory?
All living organisms are composed of cells.
Cells are the basic unit of structure and function.
Cells come from other living cells.
500
Name 4 organ systems and what they do
Answers will vary
500
Compare and contrast a plant and animal cell
Answers vary:
Plant: chloroplast, chlorophyll, cell wall, rectangular shape, have a large vacuole
Both: Almost all organelles, both eukaryotic, both have DNA, ect
Animal: Centrioles, rounder in shape, Can have flagella or cilia, have small vacuoles