BIO 111 Lab: Quiz 1

Question 1

1st Step: SM

Answer 1

Observation: noticing something about phenomenon

Question 2

2nd Step: SM

Answer 2

Scientific question: formulate a question related to observation

Question 3

3nd Step: SM

Answer 3

Hypothesis: an “educated guess”

Question 4

4th Step: SM

Answer 4

Prediction: formulated as an “If, then” statement

Question 5

5th Step: SM

Answer 5

Experimental Design: Identify several factors

Question 6

6th Step: SM

Answer 6

Compare results: between groups, etc

Question 7

7th Step: SM

Answer 7

State conclusions: review results and hypothesis.

Question 8

Formulating scientific question

Answer 8

Should be general, ideally answered yes/no, recongnize test and control group.

Question 9

Formulating hypothesis

Answer 9

Must be measureable, end in period, should be “risky”

Question 10

Formulating prediction

Answer 10

Formulate as “If, then” statment, identify the test group vs control group, independent and dependent variables.

Question 11

Control group

Answer 11

Basis for comparison, no treatment, what “normally” happens

Question 12

Test groups (experimental)

Answer 12

Recieves the treatment

Question 13

Dependent variable

Answer 13

Result that is measured in experiment, depends on the outcome of experiment

Question 14

Independent variable

Answer 14

Variable manipulated by scientist, one and only difference between experimental and control groups

Question 15

Standardized variable

Answer 15

The “opposite” of the independent variable, things that remain same betwen experimental and control groups.

Question 16

Uncontrolled variables

Answer 16

Variables not controlled by scientist but DO affect results

Question 17

Number of Carbons in a Glucose molecule

Answer 17

6 Carbons

Question 18

Alpha Glucose molecule

Answer 18

The OH group on C1 is below

Question 19

Beta Glucose molecule

Answer 19

The OH group on C1 is above

Question 20

Alpha glucose found in…

Answer 20

Starch and glycogen (easily digested)

Question 21

Beta glucose found in…

Answer 21

Cellulose (not easily digested)

Question 22

Step 1: DS

Answer 22

Identify reactants: (2 glucose a-molecules)

Question 23

Step 2: DS

Answer 23

Remove water; The OH group from the C1 of the first α-glucose and a H from the C4 of the second α-glucose are removed.

Question 24

Step 3: DS

Answer 24

Formation of Glycolsidic Bond; The oxygen left on C1 of the first glucose forms a covalent α-1,4 glycosidic bond with the C4 of the second glucose.

Question 25

Step 4: DS

Answer 25

Product: A maltose molecule (a disaccharide) and water.

Question 26

Components of an amino acid

Answer 26

NH₂ , COOH, H, Side chain (R-group)

Question 27

Hydrolysis of a disaccharide would yield...

Answer 27

Two monosaccharides

Question 28

Water is an _________ in hydrolosis

Answer 28

Reactant (added to break bond)

Question 29

Water is an _________ in dehydration synthesis

Answer 29

Product (removed to form bond)

Question 30

Backbone of amino acid

Answer 30

Functional groups: - Amino group - Carboxyl group - R-group - Hydrogen H | H₂N—C—COOH | R

Question 31

Tetrapeptide formed by, water is a

Answer 31

Dehydration synthesis, product

Question 32

Sudan- Positive result

Answer 32

Red layer on surface

Question 33

Sudan- Negative result

Answer 33

Color mixes in or no distinct top layer

Question 34

Sudan tests...

Answer 34

Lipids (fats)

Question 35

Biuret- Positive result

Answer 35

Change from blue to dark purple

Question 36

Biuret- Negative result

Answer 36

Light blue or clear

Question 37

Biuret tests...

Answer 37

Proteins

Question 38

Benedicts- Positive result

Answer 38

Dark red or orange (strongest), green/yellow (traces of simple carbs).Color gets darker as more simple carbs present

Question 39

Benedicts- Negative result

Answer 39

Blue (none)

Question 40

Benedicts tests...

Answer 40

Simple carbs/reducing sugars

Question 41

Iodine- Positive result

Answer 41

Dark blue/purple

Question 42

Iodine- Negative

Answer 42

Yellow

Question 43

In-text citation

Answer 43

For 2 authors: - (Name and Name Year) For mutiple: - (Name et al Year)