final Flashcards

(49 cards)

1
Q

Small, circular DNA not part of genome
Functions: antibiotic resistance, virulence, nitrogen fixation, etc.
Transformation: external DNA transferred to or taken up by organism
Addition of genes on plasmid DNA changes phenotype
Genetic engineering:
Mutation: change in DNA sequence
Gene cloning or editing: new genes added to or replace genes on plasmid
Requires DNA strands to be cut

A

plasmids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
AKA restriction endonucleases 
Cut double-stranded DNA 
Specific cut sites: palindrome sequences
Read same in both directions (radar, madam, etc.)
Read same on both DNA backbones
Results in sticky ends: backbones cut at different locations
EcoRI
Naturally occurs in E. coli
Creates 4 nucleotide-long sticky ends
A

restriction enzymes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

tet resistant
tet & UV resistant
tet & ampicillin resistant

A

each bacteria transformed with plasmids for these phenotypes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what do serological pipettes measure?

A

milliliters (mL)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

osmosis

A

net movement of water across a semipermeable;e membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

hemolysis

A

destruction on red blood cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

spectrometer

A

measures how light reacts with absorbance of substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

diffusion

A

net movement of particles from an area of high concentration to low concentration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

concentrations are relative to ______.

A

another solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

is concentration an example of discrete data or continuous data?

A

continuous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In lab you measure the absorbance at specific time intervals in order to calculate concentration. What is the independent variable?

A

time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

when plotting continuous data, would you use a scatter plot or a bar graph?

A

scatterplot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

how do enzymes catalyze a reaction without being consumed?

A

by lowering the activation energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what differs between the general model and the induced-fit model of enzyme catalysts?

A

enzyme changes conformation in induced fit model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

benzoquinone (substrate, product, or enzyme?)

A

product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

catechol (substrate, product, or enzyme?)

A

substrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

catecholase (substrate, product, or enzyme?)

A

enzyme

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what was the main dependent variable from the enzyme lab?

A

benzoquinone concentration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

null hypothesis

A

the amount of sunlight per day throughout the year will not significantly effect plant growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

alternative hypothesis

A

the amount of sunlight per day throughout the year will significantly significantly effect plant growth

21
Q

prediction

A

high amounts of sunlight will cause plant growth to increase

22
Q

if the p-value is greater than .05 do you reject or fail to reject the null?

A

fail to reject

23
Q

solutions that have equal amounts of solute

24
Q

greater concentration of solutes outside of a cell compared to inside of cell.

25
greater concentration of solutes inside of a cell compared to outside of cell
hypotonic
26
can water freely pass through the cell membrane?
yes
27
as permeability decreases, molecular weight
increases
28
as polarity increases, permeability
decreases
29
caption for a table
above
30
caption for a figure
below
31
the hemolysis lab measured the time to hemolysis for molecules varying in either polarity or molecular weight. what was the dependent variable?
time to hemolysis
32
the hemolysis lab measured the time to hemolysis for molecules varying in either polarity or molecular weight. what was the independent variable?
molecular weight
33
null hypothesis for hemolysis lab
molecular weight will not have a significant effect on the time to hemolysis
34
alternative hypothesis for hemolysis lab
molecular weight will have a significant effect on time to hemolysis
35
what gas is necessary for photosynthesis?
co2
36
2 products of photosynthesis
oxygen, sugars
37
what is paper chromatography useful for?
separating wavelengths
38
the leaves of most plants ______ absorb green light
DO NOT
39
why do photosynthetic organisms have different types of pigments?
so they can absorb different frequencies and wavelengths of light
40
what was the difference between the extracts spinach and cyanobacteria spirulina?
they have different pigments
41
location of photosynthesis
chloroplasts
42
spectroscope
measures wavelength of light absorbance
43
what pigments travel farthest from the origin line on chromatography paper?
non polar pigments, because they are repelled by the polar origin line
44
fermentation allows some cells to metabolize organic nutrients and produce atp in the absence of
oxygen
45
what carbon metabolism pathway is fermentation?
aerobic
46
what makes fermentation an aerobic pathway?
no 02 is present
47
dependent variable in the chromatography lab
co2 production
48
independent variable in the chromatography lab
time
49
_____ is one factor that separates DNA molecules during gel electrophoresis
size