AP Environmental Science
Test # 9 (75 points)
I. Multiple choice. Choose the best answer and write the letter in the space provided.
(2 points each)
_ 1. Which of the following would be considered water pollution from a non-point source?
Core Case Study: American Alligator
1. What is the only predator of the American alligator?
2. What is the benefit of gator holes
Hold freshwater, serves refuge for aquatic life and supplies freshwater for other animals.
Transport Across a Membrane
Very small molecules such as oxygen, carbon
dioxide, and water are permeable and move
directly across the membranes bilayer.
Why do materials move?
All molecules in a fluid exhibit Brownian motion
- random motion (dye in water
Rough Endoplasmic Reticulum
Location in cell and type of cell where it is present: Located in the inner part
of the cytoplasm of a cell. Found in both plant and animal cells.
Structure: Ribosomes cover the surface of rough endoplasmic reticulum and
Strawberry DNA Lab Report
1. See biological sketch on the back page.
2. Wet: A mucus-like globular substance, faded pink colour almost white and translucent,
a little grainy.
Dry: Denser part in the middle is redder, appea
Ryerson Field Trip- Sequences
Genetic Engineering Techniques
METHODS OF AMPLIFYING DNA
-Combining DNA with a restriction enzyme
-The enzyme cuts double stranded DNA at a specific recognition sequences known as
Moving to the Mitochondrion
Glycolysis occurs in the cell cytosol
The remaining reactions of aerobic cellular respiration take place inside the
Mitochondria is composed of an outer and inner membrane
Inner membrane folds
ATP synthesis oc
Lab Activity Identifying Nutrients
By Daryl Blankenstein
Introduction- Macromolecules are very important in living things since carbohydrates,
lipids and proteins are critical in all characteristics of metabolic processes. Medical
research, and food and w
Enzymes as Catalysts
1) Catalysis is the acceleration of a chemical reaction by a catalyst.
B) The cyclic nature of the catalytic cycle is energy efficient for the cell because the
catalyst lowers the activation energy
Endocrine System Assignment
Anterior Pituitary Glands
Hypothalamus secretes releasing hormone that targets the Anterior Pituitary gland Anterior Pituitary glandThyroid stimulating
hormonethyroid glandcontrols the secretion of hormones by the thyroid gland
9.1 Mutations and Mutagens
-Even when a gene is not expressed in one generation, the gene itself is not changed and
it may be expressed in a future generations
-However if this was true^, there would be no opportunity for genetic change and
Homework- Pg. 240 #2,3,5,6-9
2) To determine which kind of replication occurred, Meselsen and Stahl grew two types of E.
coli cultures one type in a medium of 15N (heavy nitrogen) isotope and another type in a
medium of 14N (normal nitrogen). Once the bac