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old material quizzes Flashcards

1
Q

How many domains of life are there?

A

3

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2
Q

Which types of organisms are closest to one another in evolutionary terms?

A

protists and fungi

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3
Q

What feature is present in both prokaryotic and eukaryotic cells?

A

cellular membrane

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4
Q

The following domains of life are believed to come from a common ancestor

A

bacteria, archaea, and eukaryotes

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5
Q

A common feature of all life on earth is that all organisms:

A

have DNA with A, C, G and T nucleotides is used as genetic material

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6
Q

An atom’s reactivity is primarily dependent on:

A

the number of valence electrons

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7
Q

The element that is not found in biological molecules is:

A

Helium

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8
Q

The weakest interaction of the four is:
covalent bond
ionic bond
hydrogen bond
van der Waals interaction

A

van der Waals interaction

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9
Q

Water molecules bind to the surface of a protein primarily by:

A

hydrogen bonds

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10
Q

The pH of human blood is usually:

A

slightly basic

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11
Q

A hydrocarbon molecule most likely is:

A

hydrophobic

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12
Q

Within a cellulose molecule, monosaccharides are joined by this type of bond or interaction

A

covalent bonds

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13
Q

breaking down a sucrose disaccharide into glucose and fructose monosaccharides is best described as a

A

hydrolysis reaction

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14
Q

the part of the phospholipid that is the most hydrophobic is the

A

fatty acid tails

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15
Q

of these four biological molecules, the one that is found most abundantly in a human cell are:
lipids
carbohydrates
nucleic acids
proteins

A

proteins

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16
Q

the following biological molecule polymer is most frequently is able to form complex patterns of BRANCHED chains

A

polysaccharides

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17
Q

forming a new peptide bond joining two amino acids is best described as a

A

dehydration reaction

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18
Q

the side chain of the following amino acid is able to make a covalent bond with the side chain of another amino acid

A

cysteine

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19
Q

the following amino acid would normally be found in the core of a folded protein

A

isoleucine

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20
Q

the side chain of this amino acid could be involved in forming an ionic bond

A

arginine

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21
Q

the following statement about hemoglobin is not true:
hemoglobin folds into a quaternary structure
hemoglobin is a protein made up of amino acid monomers
hemoglobin is able to bind and transport oxygen
unmutated hemoglobin aggregates into long fibers in red blood cells

A

unmutated hemoglobin aggregates into long fibers in red blood cells

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22
Q

the following nitrogenous base is the most similar to thymine in structure

A

uracil

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23
Q

a phosphodiester bond in DNA is a

A

covalent bond

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24
Q

the following interaction is the strongest:
Base pairing between guanine and cytosine
Base pairing between adenine and cytosine
Base pairing between guanine and thymine
Base pairing between adenine and thymine

A

Base pairing between guanine and cytosine

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25
the energy carrier molecule ATP is a
nucleotide
26
the following statement about RNA and DNA is not true: RNA and DNA are both made up of nucleotides joined by phosphodiester linkages Base pairing interaction take place in both RNA and DNA molecules RNA and DNA are both nucleic acids RNA and DNA both use the same four nitrogenous bases
RNA and DNA both use the same four nitrogenous bases
27
the following statement about cells is not true: All cells contain ribosomes All cells contain a semi-permeable plasma membrane All cells (bacterial, eukaryotic, and archaeal) are thought to come from a common ancestor All cells are similar in size
All cells are similar in size
28
ribosomes can be best visualized using
electron microscopy
29
the following are too small to resolve by light microscopy or electronic microscopy
individual atoms
30
the following is not true about both prokaryotic and eukaryotic cells: Both types of cells use DNA as template to make RNA then proteins Both types of cells have a plasma membrane Both types of cells use ribosomes to synthesize proteins DNA in both types of cells is stored in a nuclear membrane
DNA in both types of cells is stored in a nuclear membrane
31
mRNA goes from nucleus to the cytosol by passing through the
nuclear pore complex
32
some eukaryotic cells lack the following type of organelle
chloroplasts
33
the following organelle modifies proteins and sorts them to different parts of the cell
golgi apparatus
34
the progenitor of mitochondria and chloroplasts most likely was similar to the following organism
bacteria
35
the following organelle does not contain prokaryotic DNA
perixosomes
36
plant cells do not have the following: mitochondria central vacuole cell wall chloroplasts plant cells have all of these
plant cells have all of these
37
the cytoskeleton is made up of this type of biological macromolecule
proteins
38
the cytoskeleton is not involved in the following cellular process:
protein folding
39
the strongest type of cell junction is the
desmosomes
40
this cell junction allows the transport of nutrients between neighboring cells
gap junctions
41
the following type of molecule would be the least likely to diffuse through a cellular membrane: small, uncharged polar molecules small, charged molecules large, charged molecules large, uncharged polar molecules
large, charged molecules
42
the amino acid most likely to be found in the transmembrane region of an integral protein is
isoleucine
43
molecules can be transported the fastest through the following
ion channel receptor
44
proton pumps moves ions through it using
active transport using energy from ATP hydrolysis to ADP
45
a GPCR is best described as a
integral protein
46
hydrolysis of ATP to ADP + inorganic phosphate is best described as a
an exergonic reaction with a negative delta G
47
enzymes function by affecting the following reaction component or feature
activation energy of reaction
48
conversion of sucrose to glucose and fructose is
an enzyme catalyzed reaction
49
the following biological molecule most often serves as an enzyme catalyst
protein
50
a competitive inhibitor blocks an enzyme by binding to an enzyme's
active site
51
during the first five steps of glycolysis (the energy investment phase):
two ATP are converted to ADP
52
glycolysis takes place in the
cytosol
53
ATP synthesis by chemiosmosis is driven by
proton movement from the intermembrane space to the mitochondrial matrix
54
the most ATP is produced from this stage of cellular respiration
oxidative phosphorylation
55
an enzyme used both during photosynthesis and oxidative phosphorylation is
ATP synthase
56
photosystem I and photosystem II are located on this cell membrane
thylakoid membrane
57
during the light reactions of photosynthesis, the final electron acceptor in the electron transport chain is
NADP+
58
pumping of protons from the stroma to the thylakoid space is driven by
electrons moving down the electron transport chain
59
the calvin cycle takes place in
the chloroplast's storma
60
during the calvin cycle, for every molecule of glyceraldehyde 3-phosphate is produced from
9 ATP and 6 NAPDH
61
the interphase portion of the cell cycle consists of
G1, S and G2 phases
62
the mitotic spindle is primarily made of this type of biological molecule
protein
63
division of the cytoplasm occurs at this stage of cell division
cytokinesis
64
in a human somatic diploid cell there are this number of chromosomes
46
65
in a human haploid cel there are this number of autosomes
22
66
the stage in meiosis that is most similar to metaphase in mitosis is
metaphase II
67
crossing over to produce synapsis occurs at this stage of meiosis
prophase I
68
when Mendel performed a cross between plants with 'round seeds' and plants with 'wrinkled seeds' the progeny (F1 generation) should have
100% round seeds
69
when the progeny from the F1 generation (round seeds and plants with wrinkled seeds = 100% round seeds) are crossed with each other, the F2 generation plant should have
75% round seeds and 25% wrinkled seeds
70
for the seeds in the F2 generation (75% round seeds and 25% wrinkled seeds): half the seeds are homozygous and half the seeds are heterozygous all the seeds are homozygous all the seeds are heterozygous
half the seeds are homozygous and half the seeds are heterozygous

biology (3 decks)

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