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Flashcards in Exam 1 Deck (42)
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1

What is the correct order of the scientific method?

Observation, question, hypothesis, experiment, data analysis, conclusion.

2

THe independent variable?

Is changed by the experimenter

3

They Null hypothesis of an experiment is?

an alternative possibility in the event that the explanation being tested does not apply

4

What is mean?

Average

5

What is median

Middle value

6

What is the mode?

Most used value

7

Which is NOT a category of proteins?
Defensive, Structural, Cell transportation, Offensive, Intracellular movement, Cell signaling

OFFENSIVE

8

Know a good example of normalized data?

Normalized data?

9

What is the dependent variable?

Measured by the experimenter, usually the Y Axis

10

What is a negative control?

Placebo, insures that results are not due to the testing nature of experiment.

11

Who is the person who taught the library literacy class?

Michael Goates

12

Polypeptides are ordered?

From the N-terminus to the C-terminus.

13

Which of the following observations is the strongest arguement in favor of the hypothesis that protein structure and function are correlated?
1- Enzyme3s tend to be globular in shape
2-Incorrectly folded proteins do not function properly.
3-Proteins function best at certain temperatures.
4-Proteins have four distinct levels of structure and many functions.

2- Incorrectly folded proteins do not function properly.

14

What are the categories of R-groups in a protein?

Hydrophobic, Hydrophilic, Acidic

*not Simple

15

In a protein, what is most responsible for the secondary structure called an alpha-helix?

Hydrogen bonds that form between carbonyl and amino groups on different residues

16

When counting a string of amino acids where do you start?

Start with Amino group, this counts as first one

17

Which nitrogenous base is used only in RNA?

Uracil

18

Which of the following best describes tertiary structure?

Covalent bonding between two Sulfur atoms in R-group side chains of amino acids

19

Which of the following best describes secondary structure?

Hydrogen bonding between portions of the backbone of the polypeptide

20

Know the images of pentose sugar

it is a ribonucleotide

21

DNA is written:

5' to 3'

22

The cell theory put to rest which popular theory in the eighteenth and nineteenth centurey?

Theory of spontaneous generation

23

Glycoproteins are important signal proteins. where are these types of proteins usually found on the cell?

On the exterior of the cell

24

Erwin Chargaff researched and established?

The ratio of purines to pyrimidines in the molecule

25

The amino acid Valine is gernerally found in the interior of globular proteins and in Membrane proteins. What characteristic of this amino acid can we infer from this information?

The amino acid is hydrophobic

26

According to Dr. Geary, the state that grows the best potatoes

Idaho

27

Which of the following contributes to osmotic pressure?

Solution concentration

28

Which of the following is an attribute of an unsaturated lipid bilayer?

Double bond between fatty acid carbons

29

Osmotic pressure

The water moves to the side with them most molucules to even out the solution

30

Tinea Pedis is a fungus that causes athletes foot, what carbohydrate does it use in its cell walls?

Chitin