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Cell Bio > Final > Flashcards

Final Flashcards

1
Q

Gregor Mendel was most influential in which field?

A

Genetics

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2
Q

The Cell Membrane can be described most accurately as

A

Permeable to some molecules and impermeable to others

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3
Q

Which of the following is false of brightfieqld microscopy?

A

Specimens are always viewed without being stained

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4
Q 
Which out of the following does not represent the correct pairing of the abbreviation with the one-letter abbreviation of amino acids?
A. Pro-P
B. Met-M
C. Glu-E
D. Phe-F
E. Arg-A
A

Arg-A

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5
Q

The primar structure of a protein

a. is important for determining the secondary and tertiary structure of a portion
b. is simply the order of amino acids from one end of the protein to another
c. is important both genetically and structurally
is the linear sequence of amino acids that are linked together by peptide bonds
e. all of the above

A

all of the above

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6
Q

In 1665,_____ used a microscope that he had built to examine thin slices of ____. While examining this material, he observed tiny compartments that he called cellulae.

A

Robert Hooke; Corke

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7
Q

The limit of resolution can best be described as

A

the distance that 2 objects must be apart to be distinguished as separate objects

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8
Q

Which of the following i a eukaryotic characteristic?

a. cell fission
b. membrane-bound nucleus
c. little processing of rna
d. 70s ribosomes
e. none of the above

A

Membrane-bounded nucleus

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9
Q

Which of the following is no ta base used in DNA replication?

A. Thymine
B. Guanine
C. Uracil
D. Adenine
E. Cytosine
A

Uracil

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10
Q

A microtome is used to

a. view microscopic organisms
b. slice thin sections of specimens
c. focus short wavelength objects
d. dissect cellular organelle

A

slice thin sections of specimens

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11
Q

A protein is designed to be secreted from a cell. In which organelle would you expect to find the protein just after it is produced in the Rough ER?

A

Golgi apparatus

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12
Q

Which scientist is credited with coining the term cell from the latin cellulae

A

Robert hooke

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13
Q

The Cytosol is best described as

A

Semifluid substance in which organelles are suspended

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14
Q

The smooth ER primarily synthesis

A

lipids

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15
Q 
which of the following is an informational macromolecule?
A. DNA
B. ATP
C. Starch 
D. Glycogen
E. Polypetide
A

DNA

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16
Q

The Steps to the scientific method are

A 
Make observation
formulate hypothesis
design experiments
collect data
interpret results 
draw conclusions
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17
Q

Which of the following statements about the polymerization of macromolecules is false?

a. often the energy needed for polymerization is supplied by tap
b. the polymer chain usually has 2 different ends
c. water is added to join the macromolecules
d. a monomer is usually activated by the coupling of the monomer to a carrier
e. macromolecules are synthesized by the stepwise addition of monomers

A

water is added to join the macromolecules

18
Q

which organelle has only a single membrane around it?

a. ribosome
b. nucleus
c. mitochondrion
d. chloroplast
e. peroxisome

A

E peroxisome

19
Q

Which of the following fundamental properties of life do viruses not posses?

a. metabolism
b. irritability
c. ability to reproduce
d. both a and b
e. both c and b

A

Both A and B

20
Q

early microscopes did not allow clear visualization of cells because they were limited by

a. magnification
b. number of kernels
c. resolution
d. refraction
e. C and D

A

resolution

21
Q

The major structural element of cytoskeltons are…
a. extracellular matrix and the cell wall
b. microtubules, microfilaments, and intermediate filaments
c. the cytoplasm and cytoskeleton
d. cleavage furrows and G-action
E. proteoglycans and cellulose microfibrils

A

B. microtubules microfilaments, and intermediate filaments

22
Q

which one of the following biological polymers is mismatched with its monomer?

a. Dna-Nucleotide
b. enzyme-amino acid
c. chitin-monosacharide
d. protein -amino acid
e. cellulose amino acid

A

E. cellulose amino acid

23
Q

Which of the following is a disaccharide?

a. galactose
b. lactose
c. fructose
d. glucose
e. annalise.

A

lactose

24
Q

Which of the following is not a tenet of the cell theory?

a. all organisms consist of one or more cells
b. all cells arise from preexisting cells
c. the cell is the basic unit of life
d. all cells have a membrane bound nucleus

A

D. all cells have a membrane bound nucleus

25
Q

which of the following types of work involves a change in position of the cell or a cell structure?

a. bioluminescent
b. electrical
c. mechanic
d. synthetic
e. concentration

A

c. mechanical

26
Q

the process of glucose synthesis is called

a. glycolosyis
b. gluconeogenisis
c. glycolysis
d. glycogenesis
e. b and c

A

B gluconeogenesis

27
Q

which of the following is true of NAD+?

a. Derived from vitamin E
b. serves as an electron source for biological oxidation
c. is is a coenzyme
d. it releases an adenosine to become NADH
E. it represents the reduced form of Niacin

A

C. it is a coenzymes

28
Q

why are mitochondria so prevalent in skeletal muscle?

a. they give the muscle enough elasticity to contract
b. they are needed to repair damaged tissue that accumulates during exercise
c. they are needed to provide energy for muscle contraction
d. bones and muscles require a deal of energy to prevent them from separating
e. the flow of blood is greater in skeletal muscle.

A

C they are needed to provide energy for muscle contraction

29
Q

Chemotrophs get their energy by:

a. oxidizing chemical bonds in molecules
b. capture light energy form the sun
c. use solar energy to produce al the carbon compounds
d. ingest and use chemical compounds to provide bothe energy and carbon for cellular needs.
e none of the above

A

a oxidizing chemical bonds in molecules

30
Q

Oxidation in biological systems is usually accompanied by:

a. repulsion
b. hydrogenation
c. dehydrogenation
d. resonance stabilization
e. all of the above

A

c.

31
Q

The fate of the final product of glycolysis depends on the presences of

atp
adp
Nad+
O2
NADH
A

O2

32
Q

What process describes the uptake of liquids or large molecules into a cell by inward folding of the cell membrane?

Phagocytosis
exocytosis
endocytosis
diffusion

A

endocytosis

33
Q

excessive fat catabolism can result in ?

a. ketoacidosis
b. accumulation of acetyl CoA
c. Upregulation of the citric acid cycle
d. improved endurance performance

A

a ketoacidosis

34
Q

T/F chemotrophs take in reduced compounds and oxide them to release there stored energy.

A

true

35
Q

how many ate are produced in cellular respiration?

2
4
34
38

A

38

36
Q

the process by which a palm membrane invalidates to create a vesicle around a substance before transporting it into a cell is

A

endocytosis

37
Q

transcription is carried out through the use of RNA polymerase T/F

A

True

38
Q

Dna replication is

conservative
dispersive
semiconservative
irregular

A

semi

39
Q

a phosophoanhydride bond

a. is a high energy bond
b. has a standard free energy of hydrous of -7.3
c. is broken by hydrolysis
d. both a b
e. a b c

A

abc

40
Q

an energy-liberating pathway is considered to be

a. metabolic
b. anabolic
c. catabolic
d. hydrogenations
e. all

A

C.catabolic

Cell Bio (1 decks)

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