Final Exam Clicker Questions Flashcards

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1
Q

A water molecule contains what type of bond?
Hydrogen
Ionic
Polar covalent
Van der walls interactions

A

Polar covalent

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2
Q

Ribose and deoxyribose are
Structural isomers
Lipids
Both in DNA
Both in RNA
None

A

None

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3
Q

What is a gene
A section of DNA that codes for protein
A section of RNA that codes for protein
A section of DNA that codes for RNA
A section of DNA that codes for carbohydrates
A section of RNA that codes for carbohydrates

A

A,B,C

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4
Q

What makes a biological membrane more fluid?
Increasing the length of the fatty acids
Deceasing the saturation of the fatty acids
Decreasing the temperature

A

Decreasing the saturation if the fatty acids

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5
Q

The plasma membrane is composed of a phospholipid belayer and associated proteins. What else is commonly found in the plasma membrane of animal cells?
Nucleic acids
Free amino acids
Glycerol
Cholesterol

A

Cholesterol

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6
Q

All proteins are free to move around laterally in the plasma membrane
True
False

A

False

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7
Q

Which of the following would most easily diffuse through the plasma membrane
Sodium ion
Chloride ion
Glucose
Cortisol (steroid)
DNA

A

Cortisol (steroid)

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8
Q

During osmosis water flows from a region of ___ solute concentration to a region of ___ solute concentration
Low high
High low
High equal
Low equal

A

Low high

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9
Q

You are studying a particular protein. You notice that you can only find it inside the cell when atp is present. How is the protein moving through the membrane?
Diffusion
Facilitated diffusion
Passive transport
Active transport

A

Active transport

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10
Q

Which of the following is an example of facilitated diffusion?
Diffusion of a steroid
Diffusion with a carrier protein
The sodium/potassium pump

A

Diffusion with a carrier protein

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11
Q

Some prokaryotes have one of the following, which is never found in eukaryotes:
DNA
Cell wall
Plasma membrane
Flagellum
All of the above

A

All of the above

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12
Q

Photosynthetic bacteria undergo photosynthesis in
Flagella
The golgi
Mitochondria
Chloroplasts
Folded sections of internal plasma membrane

A

Folded sections of internal plasma membrane

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13
Q

Protein synthesis
An occur in the golgi
Is preformed by ribosomes
Can occur on the ER
Can occur in the nucleus

A

Preformed by the ribosomes
Can occur on the ER

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14
Q

What is atp specifically used for?
Substrate for protein synthesis
Substrate for lipid synthesis
Substrate for DNA synthesis
Substrate for RNA synthesis
Substrate for DNA and RNA synthesis

A

Substrate for RNA synthesis

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15
Q

A chemical reaction involving carbohydrates is happening at a slow rate in your experiment. What can of do to speed up the reaction?
Add more reactants
Change the deltaG of the reaction
Add a protease enzyme
Raise the activation energy of the reaction

A

Add mor reactants

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16
Q

Where does the energy for the reduction of NAD+ come from
Oxygen
Water
NADH
Glucose

A

Glucose

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17
Q

Which process produces the most ATP by substrate-level phosphorylation?
glycolysis
pyruvate oxidation
citric acid cycle
glycolysis and the citric acid cycle produce equal amounts

A

glycolysis and the citric acid cycle produce equal amounts

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18
Q

why do we breathe?
to obtain fuel for glycolysis
to obtain fuel for the citric acid cycle
to obtain an oxidizing agent for the ETC
to obtain oxygen for pyruvate oxidation

A

to obtain an oxidizing agent for the ETC

19
Q

____ is the carbon input and ____ is the carbon output for the Clavin cycle
rubisco glucose
rubisco triose phosphate
CO2 triose phosphates
CO2 glucose
3-PGA triose phosphate

A

CO2 glucose

20
Q

which one of the following statements best represents the relationship between cellular respiration and photosynthesis
photosynthesis reverses the biochemical pathways of respiration
photosynthesis occurs only during the day and respiration occurs only at night
respiration occurs only in animals and photosynthesis only occurs in plants
respiration stores energy in organic molecules while photosynthesis releases it
photosynthesis store energy in organic molecules while respiration releases ot

A

photosynthesis stores energy in organic molecules while respiration release it

21
Q

an example of a ligand for cytoplasmic receptors is
insulin
glucose
cortisol (steroid)
all of the above

A

cortisol (steroid)

22
Q

which type of receptor undergoes a conformational change upon activation?
G protein-coupled receptors
receptor protein kinases
ligand-gated ion channels
intracellular receptors
all of the above

A

all of the above

23
Q

a mutation acquired by a bacterium will very likely be inherited by all daughter cells
true
false

A

true

24
Q

which DNA sequences are more alike?
a pair of sister chromatids
a pair of homologous chromosomes
human chromosomes 1 and 2

A

a pair of sister chromatids

25
Q

A skin cell of G2 of interphase has _____ as much DNA as it had in G1
half
twice
exactly
one-fourth
four times

A

twice

26
Q

all of the following happen during mitosis except:
condensing of chromosomes
separation of sister chromatids at the centromeres
formation of the spindle
synthesis of DNA

A

synthesis of DNA

27
Q

what would happen during cell division if the cell was deficient in actin?
the sister chromatids would not separate
the mitotic spindle would not form
the cell would not divide
the centromeres would remain unattached

A

the cell would not divide

28
Q

synapsis occurs during
prophase of mitosis
metaphase of mitosis
anaphase II of mitosis
prophase I of meiosis
prophase II of meiosis

A

prophase I of meiosis

29
Q

which checkpoints must be passed in G2 and M phases?
DNA damage
replication
spindle assembly

A

replication
spindle assembly

30
Q

given that undamaged DNA is vital to the proper function of a cell, what options does a cell have if it detects DNA damage at the DNA damage checkpoint?
the cell copies its chromosomes and enters G2
the cell returns to M phase
the cell dies
the cell fixes the damage then enters S phase

A

the cell dies
the cell fixes the damage then enters S phase

31
Q

where is PCR used
eukaryotic cells
prokaryotic cells
all cells
the laboratory

A

the laboratory

32
Q

where do restriction enzymes come from?
viruses
protists
bacteria
plants

A

bacteria

33
Q

a missense mutation may
disable protein function
alter protein function
have no effect on protein function

A

all of the above

34
Q

insertion of three nucleotides into the exon of a gene would change the reading frame of the mRNA
true
false

A

false

35
Q

which of the following mutations has the potential to shorten a protein
silent
missense
nonsense
frameshift

A

nonsense
frame-shift

36
Q

which mutations in a somatic cell are inherited by the progeny of an organism?
point mutations
silent mutations
deletions
all
none

A

none

37
Q

which enzyme would be used to repair a break in the DNA backbone
DNA polymerase
DNA ligase
helicase
endonuclease
all

A

DNA ligase

38
Q

out the PCR steps in the correct order
extension
denaturation
repeat
annealing

A

denaturation
annealing
extension
repeat

39
Q

what kind of genetic variation involves whole genes?
single nucleotide polymorphisms
point mutations
copy number variation
variable number tandem repeats

A

copy number variation

40
Q

a tripod plant has
one extra chromosome
one extra set of chromosomes
three chromosomes
nine chromosomes

A

one extra set of chromosomes

41
Q

homozygous individuals
have two different alleles of a particular gene
have two copies of the same allele of a particular gene
have the same allele in two different genes
give only homozygous offspring
two of the above

A

have two copies of the same allele of a particular gene

42
Q

a pea plant with the genotype AaBb self-fertilizes and produces 32 seeds. how many green wrinkled seeds would you expect to see
two
three
six
nine
eighteen

A

two

43
Q

if you let a plant with a genotype AaBbTt self-fertilize, what is the probability of obtaining a short plant with yellow spherical seeds in the F1 progeny? tall (T) is dominant to short (t)
zero
6/27
9/27
9/64
27/64

A

9/64

44
Q

what is the probability of a four-seeded pod having one green seed and three yellow seeds
1/4
1/2
27/256
108/256

A

108/256