7588511
Descripción
Test por Daniel Brand, actualizado hace más de 1 año
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Creado por Daniel Brand
hace más de 7 años
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|
Pregunta 1
Pregunta
Label this diagram of a nucleotide:
Respuesta
-
Ribose sugar
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Hexose sugar
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Nitrogenous base
-
Phosphate group
-
Nitrogenous base
-
Phosphate group
-
Amide group
-
R group
-
Phosphate group
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Hexose sugar
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Deoxyribose
-
Nitrogenous base
-
Carbon 1
-
Carbon 2
-
Carbon 0
-
Carbon 4
-
Carbon 5
-
Carbon 5
-
Carbon 3
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Carbon 1
-
Carbon 6
Pregunta 2
Pregunta
Which of the following molecules are derived from nucleic acids? Check all that apply.
Respuesta
-
DNA
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RNA
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ATP
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AMP
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Polypeptides
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Glucose polymers
Pregunta 3
Pregunta
[blank_start]Complementary[blank_end] [blank_start]base[blank_end] [blank_start]pairing[blank_end] is the type of pairing that ensures that G-C and A-T are correctly and uniquely bonded to each other in DNA, and similarly G-C and A-U in RNA.
Respuesta
-
Complementary
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base
-
pairing
Pregunta 4
Pregunta
ATP is short for [blank_start]adenosine[blank_end] [blank_start]triphosphate[blank_end].
Respuesta
-
adenosine
-
triphosphate
Pregunta 5
Pregunta
The difference between AMP, ADP, and ATP is the [blank_start]number[blank_end] of [blank_start]phosphate groups[blank_end].
Respuesta
-
number
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arrangement
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oxidation state
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degree of polarity
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phosphate groups
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nitrogenous bases
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carbon atoms in the pentose sugar
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OH groups on carbon 2
Pregunta 6
Pregunta
Which of the following can be used to describe DNA and RNA? Check all that apply.
Respuesta
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Contain genetic information
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Macromolecule
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Polymer
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Carbohydrate
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Nucleotide monomers
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Monomers joined by phosphodiester bonds
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Double-stranded
Pregunta 7
Pregunta
The sugar in DNA is [blank_start]deoxyribose[blank_end] and the sugar in RNA is [blank_start]ribose[blank_end].
Respuesta
-
deoxyribose
-
ribose
Pregunta 8
Pregunta
One strand of DNA is 5' to 3', while the other is 3' to 5'.
Respuesta
- True
- False
Pregunta 9
Pregunta
The four DNA nucleotides are a[blank_start]denine[blank_end], t[blank_start]hymine[blank_end], c[blank_start]ytosine[blank_end], and g[blank_start]uanine[blank_end]. A and G are p[blank_start]urines[blank_end] and T and C are p[blank_start]yrimidines[blank_end].
Respuesta
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denine
-
hymine
-
ytosine
-
uanine
-
urines
-
yrimidines
Pregunta 10
Pregunta
Which of the following diagrams correctly shows the phosphate-sugar backbone?
Respuesta
Pregunta 11
Pregunta
Which type of bond holds together the opposite bases in a DNA double helix?
Respuesta
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Ionic bonding
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Hydrogen bonding
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Disulphide bridges
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Hydrophilic attraction
Pregunta 12
Pregunta
In RNA (as opposed to DNA), thymine is replaced with [blank_start]uracil[blank_end].
Respuesta
-
uracil
Pregunta 13
Pregunta
Which of the following are NOT types of RNA? Check all that apply.
Respuesta
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tRNA
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mRNA
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rRNA
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nRNA
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dRNA
Pregunta 14
Pregunta
A nucleosome is a structure composed of [blank_start]DNA[blank_end] [blank_start]wrapped around[blank_end] [blank_start]histone[blank_end] proteins. It allows the DNA to be stored more [blank_start]compactly[blank_end] as chromosomes. This phenomenon only occurs in [blank_start]eukaryotes[blank_end].
Respuesta
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DNA
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mRNA
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rRNA
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ADP
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wrapped around
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inside loops of
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surrounded by
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histone
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small
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ninhydrin
-
globular
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compactly
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in solution
-
broadly
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eukaryotes
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prokaryotes
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bacteria
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viruses
Pregunta 15
Pregunta
The equation that relates to the release of energy from ATP is:
[blank_start]ATP[blank_end] + [blank_start]H2O[blank_end] --> [blank_start]ADP[blank_end] + [blank_start]Pi[blank_end] + [blank_start]energy[blank_end]
Respuesta
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ATP
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ADP
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Pi
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Glucose
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H2O
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CO2
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Sunlight
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6O2
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ADP
-
ATP
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CO2
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Pyruvate
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Pi
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Sigma
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AMP
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6CO2
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energy
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Glucose
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ATP synthase
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H2O
Pregunta 16
Pregunta
The enzyme responsible for making ATP is [blank_start]ATP[blank_end] [blank_start]synthase[blank_end].
Respuesta
-
ATP
-
synthase
Pregunta 17
Pregunta
How does ATP differ from other energy storage molecules, such as starch or glycogen?
Respuesta
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It's a less stable molecule, so not used for long-term storage.
-
It is known as the universal energy currency because it releases energy in greater quantities.
-
Energy release from ATP is a multi-step process.
-
ATP is a polymer which has only one type of monomer.
Pregunta 18
Pregunta
What type of reaction is required to release energy from ATP?
Respuesta
-
Hydrolysis
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Condensation
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Polymerisation
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Combustion
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