Final Exam Clicker Questions

Question 1

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

Answer 1

Polar covalent

Question 2

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

Answer 2

None

Question 3

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

Answer 3

A,B,C

Question 4

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

Answer 4

Decreasing the saturation if the fatty acids

Question 5

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

Answer 5

Cholesterol

Question 6

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

Answer 6

False

Question 7

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

Answer 7

Cortisol (steroid)

Question 8

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

Answer 8

Low high

Question 9

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

Answer 9

Active transport

Question 10

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

Answer 10

Diffusion with a carrier protein

Question 11

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

Answer 11

All of the above

Question 12

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

Answer 12

Folded sections of internal plasma membrane

Question 13

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

Answer 13

Preformed by the ribosomes
Can occur on the ER

Question 14

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

Answer 14

Substrate for RNA synthesis

Question 15

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

Answer 15

Add mor reactants

Question 16

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

Answer 16

Glucose

Question 17

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

Answer 17

glycolysis and the citric acid cycle produce equal amounts

Question 18

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

Answer 18

to obtain an oxidizing agent for the ETC

Question 19

____ 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

Answer 19

CO2 glucose

Question 20

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

Answer 20

photosynthesis stores energy in organic molecules while respiration release it

Question 21

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

Answer 21

cortisol (steroid)

Question 22

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

Answer 22

all of the above

Question 23

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

Answer 23

true

Question 24

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

Answer 24

a pair of sister chromatids

Question 25

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

Answer 25

twice

Question 26

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

Answer 26

synthesis of DNA

Question 27

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

Answer 27

the cell would not divide

Question 28

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

Answer 28

prophase I of meiosis

Question 29

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

Answer 29

replication spindle assembly

Question 30

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

Answer 30

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

Question 31

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

Answer 31

the laboratory

Question 32

where do restriction enzymes come from? viruses protists bacteria plants

Answer 32

bacteria

Question 33

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

Answer 33

all of the above

Question 34

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

Answer 34

false

Question 35

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

Answer 35

nonsense frame-shift

Question 36

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

Answer 36

none

Question 37

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

Answer 37

DNA ligase

Question 38

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

Answer 38

denaturation annealing extension repeat

Question 39

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

Answer 39

copy number variation

Question 40

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

Answer 40

one extra set of chromosomes

Question 41

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

Answer 41

have two copies of the same allele of a particular gene

Question 42

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

Answer 42

two

Question 43

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

Answer 43

9/64

Question 44

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

Answer 44

108/256