Download Name: Date: Period:_____ Midterm Review: Study Guide # 1

Name:__________________________________
Date:_________________
Period:_____
Midterm Review: Study Guide # 1
TOPICS: Scientific Method, Microscope, & Cell Structure/Function
Please read before studying:
1. Locate your guided notes and any other associated sheets for ALL the topics listed above. This
should be easy to locate in your notebook!
2. Next, scan the objectives for the topic you are about to study in order to get a sense of what
you should be focusing your time and energy on.
3. Start mastering each objective by answering the associated review questions right on this sheet.
4. After you have finished, use this sheet as a study tool to quiz yourself. Quiz yourself by trying to
answer all the questions aloud. This will probably take you a few times to feel comfortable. You are
finished studying when and only when you can answer 100% of the objectives correctly without
having to look back at your notes for help.
Topic # 1 – Scientific Method
 I am able to describe All 7 steps of the scientific method:
 Purpose – the reason you are performing the experiment
 Hypothesis – an educated guess to what the outcome of the experiment will
be written in “If…then…because” statement
 Materials – list of tools needed to perform the experiment
 Procedure – the steps of an experiment (sequential list)
 Data – facts, figures, observations
 Conclusion – a written summary of the results

Communication – sharing results through a lab report, oral presentation, poster
 I am able to define independent variable and dependent variable:
 Independent variable – scientist “changes” TRICK – ONE thing that changes
 Dependent variable - scientist “measures” – D=Data recorded; always a #
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Name:__________________________________
Date:_________________
Period:_____
 I am able to identify the independent variable and dependent variable if given an experimental
scenario:
 Natalie is unhappy with the battery life of her CD player. She decides to test three
different battery brands to see which one will last the longest.
 What is the independent variable? Battery brands
 What is the dependent variable? Time – MUST BE A NUMBER RECORDED!

Sasha wants to find out the amount of water she should give her tomato plants in order to
grow the biggest tomatoes. She has three plants. She waters plant #1, once a day. She
waters plant # 2 twice a day. And she waters plant # 3 three times a day. After 2 weeks
she measures the diameter of the tomatoes.
 What is the independent variable? Amount of watering
 What is the dependent variable? Diameter size of tomatoes –MUST BE A
NUMBER!
Topic # 2 – Microscope
 I am able to calculate total magnification:
 What is the equation for calculating total magnification?
Total magnification = eyepiece magnification x objective magnification
 What is the total magnification under
 Low power = 10 x 4 = 40x
 High Power = 10 x 40 = 400x
 Medium power = 10 x 10 = 100x
 I am able to describe how to properly use the microscope:
 How should you carry a microscope? By the arm and hand under the base
 What adjustment knob should NEVER be used under HIGH POWER? Why?
Coarse adjustment knob because you don’t want to crack the slide
 How can you adjust the light shining on the slide? Diaphragm
Topic # 3 – Cell Structure & Function
 I am able to state the function of the following cell parts and state in which cell (PLANT, ANIMAL,
or BOTH) each is found:
Organelle
Function
Plant? Animal? Both?
Regulates what enters and exits the
Both
Cell Membrane
“Mom” / “Security Guard”
Cell Wall
“Brick Wall”
Nucleus
“Brain”
cell; “gatekeeper”
Support & protection;
“tough outer fence”
Control center of cell
Plant
Both
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Nucleolus“Center Tootsie
Pop”
Chromatin (DNA)
“Recipe”
Cytoplasm
“Jell-O”
Endoplasmic Reticulum (ER)
“Conveyor Belt”
Ribosomes
“Factory Workers”
Golgi Body
“Mailroom” or “Fed-Ex”
Vesicle
“Vehicles”
Vacuole
“Vacuum”
Mitochondria
“Mighty-Mitochondria”
Chloroplast
“Solar Panels”
Lysosome
“Lysol- breaks down”
Date:_________________
Makes ribosomes
Both
Genetic material; has instructions
for making proteins;
Jelly-like fluid that holds all of the
organelles in place
Maze of membranes that transport
protein material
Makes proteins for cell
Both
Period:_____
Both
Both
Both
Packages, tags, and ships proteins
Both
Sacs that transport proteins
through cell
Storage area for water and food;
“Refrigerator” or “Pool”
Provides usable energy for the cell;
“Power house”
Captures sunlight and turns it into
food (big sugar) for the cell;
Digests old cell parts, waste, etc.
“Pacman” “Garbage collectors”
Both
Plant- Big,Stores Water
Animal-small,stores food
Both
Plant
Both
 I am able to identify each cell organelle on a diagram of a PLANT or ANIMAL cell:
 I am able to state the main job of a cell:
 What is the main job of a cell? To make proteins
 I am able to state the path a protein takes in the cell:
 What is the path a protein takes?
Appendix_Science7
Name:__________________________________
Date:_________________
Period:_____
Nucleus has instructions (chromatin)  ribosome  E-R  Golgi  Vesicle 
Storage (vacuole) or Out of Cell (Cell Membrane)
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