Name: ______Date: ______

Semester 1 Biology Review – Scenarios, Models, Diagrams

Chapter 1 Scientific Method

DIRECTIONS: Write the If… then… parts of a hypothesis for each of the following research questions. Identify the manipulated and responding variable for each.

1. What effect does studying with music have on student test scores?

______

Manipulated variable: ______

Responding variable: ______

DIRECTIONS: Read each scenario and then write a full hypothesis statement (If…then…because…) for the scenario.

Reminder for writing a hypothesis format: If (manipulated variable), then (responding variable), because (a scientific reasoning for the response).

2. Sweetener on Bubble Gum Size Laura loved to chew gum - and she especially liked to blow bubbles. She wondered if the type of sweetener (real sugar or artificial sweetener) affected the size of the bubble. She assumed that they would be the same size. Laura got a pack of regular gum and a pack of sugar-free gum and chewed each. She blew the largest possible bubbles for each type of gum - then she measured the size of the bubbles to see if the sweetener type made a difference.

______

DIRECTIONS: For the scenario below, you will be asked to answer the questions using the phrases from the word bank.

SCENARIO 3 – Redwood Trees

Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. Height of the trees is measured once a week.

WORD BANK
Same tree breed 12 weeks timeframe Tree left outside in normal conditions
Measure with same instrument every time Redwood growth Different humidities

1.  What is the control group when testing the scenario above? ______

2.  What is the manipulated variable? ______

3.  What is the responding variable? ______

4.  List three controlled variables that would be used for the scenario above?

a.  ______

b.  ______

c. ______

5. (Not in word bank) What would be a reliability measure you could use in this scenario? ______

6. (Not in word bank) What would be a validity measure you could use in this scenario? ______

DIRECTIONS: Label the parts of HOG RACER in the data table below.

What is HOG RACER Describing?
H
O
G
R
A
C
E
R

Chapters 2 – Chemistry of Life

DIRECTIONS: Fill in the data tables below. The first data table is from your Identifying Organic Compounds lab.

Macromolecule Tested for / Indicator / Positive Control / Negative Control
Protein
Carbohydrate - Starch
Carbohydrate - Sugar
Lipid
Macromolecule / Polymer(s) / Monomer(s) / Function(s) / Food(s)
Protein
Carbohydrate
Lipid / Triglyceride** (wasn’t given to you before)
Nucleic Acid

Chapters 3-6 Ecology Unit

DIRECTIONS: Fill in the data tables by illustration, compare/contrast, etc. of the different ecological concepts.

Draw an example of a food chain below. / Draw an example of a food web below.
Compare/Contrast a Biotic factor and an Abiotic factor (in the box to the right)
Compare/Contrast Primary and Secondary succession
Compare/Contrast how Energy and Matter flow in an ecosystem
Compare/Contrast Density-Independent and Density-Dependent factors
What are the 6 most important elements for life on Earth? List them to the left and explain why they are important for life.
Mutualism (draw an example below) / Commensalism (draw an example below) / Parasitism (draw an example below)

DIRECTIONS: Label the levels of organization on the pyramid below.

What are the units for a biomass pyramid? / What are the units for an energy pyramid? / What are the units for a pyramid of numbers?

Chapter 7 Cells Unit

DIRECTIONS: Fill in the data table to compare/contrast Eukaryotic and Prokaryotic cell types.

Prokaryotic cells / Eukaryotic cells

DIRECTIONS: Fill in the data table to compare/contrast the types of movement across a membrane

Diffusion / Osmosis / Facilitated Diffusion / Active Transport

DIRECTIONS: List the 3 parts of the cell theory.

1. ______

2. ______

3. ______

DIRECTIONS: On the lines below, write the story of a single protein’s journey through a eukaryotic cell. Start the story with the birth of the protein. Try to include as many organelles and their functions as possible.

______

Chapters 8 and 9 – Photosynthesis and Cellular Respiration

DIRECTIONS: Fill in the data table below with the correct information.

Photosynthesis / Cellular Respiration
What organisms?
Where? What organelle?
Reactants
Products
Factors that slow down/speed up this process
ADP / ATP
Draw each molecule
Compare/contrast the 2 molecules

DIRECTIONS: Compare/Contrast plant and animal cell structures below.

Plant Cell Structure / Animal Cell Structure

Chapter 10 Cell Cycle

DIRECTIONS: On the circle provided below, divide the circle into the cell cycle parts, label each part. Then below in the data table, fill in what happens during each step in the cell cycle.

G1
S
G2
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

DIRECTIONS: Draw a chromosome below and label the centromere, sister chromatids, etc.

DIRECTIONS: Compare/contrast internal and external regulators of the cell in the data table below.

Internal regulators / External regulators

List the 2 major disadvantages to large cell size.

1. ______

2. ______

DIRECTIONS: Fill in the data table below about surface area and volume.

Surface Area / Volume
Write the equation for a cube.
Calculate each for a cube of 3.5 cm sides.
What is the SA:V ratio for the 3.5 cm sided cube? / SA:V ratio =
Which one grows more rapidly as the cell size increases?