4477769
Descrição
Quiz por Jaidha Rosenblat, atualizado more than 1 year ago
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Criado por Jaidha Rosenblat
quase 9 anos atrás
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Questão 1
Questão
Which of these is the most accurate description of the term "gene?"
Responda
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A sequence of DNA nucleotides that are the code for making a particular protein.
-
A strand of DNA that acts as a 3D protein printer.
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A notable feature or quality of an organism
Questão 2
Questão
Which of the following is the most accurate description of the term "chromosome?"
Responda
-
A long DNA double-helix, tightly wound around histone proteins.
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A "protein printing" machine.
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Long molecules of mRNA
Questão 3
Questão
Three dimensional printed objects with specific shapes and functions
Responda
-
mRNA
-
DNA
-
Proteins
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Nucleotides
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Ribosomes
Questão 4
Questão
The cell's "3D printers."
Responda
-
mRNA
-
Ribosomes
-
DNA
-
Nucleotides
-
Proteins
Questão 5
Questão
The cell's "flash-drive"--portable copies of files or apps.
Responda
-
mRNA
-
DNA
-
Ribosomes
-
Proteins
-
Nucleotides
Questão 6
Questão
Software stored in the cell's "hard-drive."
Responda
-
mRNA
-
DNA
-
Ribosomes
-
Proteins
-
Nucleotides
Questão 7
Questão
Symbols of the cell's software code.
Responda
-
mRNA
-
DNA
-
Ribosomes
-
Proteins
-
Nucleotides
Questão 8
Questão
Genes are made of a sequence of the nucleotides A, C, T and G.
Responda
- True
- False
Questão 9
Questão
Choose all responses that correctly complete this sentence:
All 20 naturally occurring amino acids are identical in_____________________________________
Responda
-
The atoms in the "amino" group.
-
The central carbon atom with its attached hydrogen atom.
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The atoms in the "carboxylic acid" group
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The atoms in the "R-group" side-chain.
Questão 10
Questão
Two important categories of macro-molecules in cells are nucleic acids (DNA and the different RNAs), and protein. Which of the following are characteristics of proteins?
Responda
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Its function is determined by its shape.
-
Genes are made of this type of molecule.
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Its function is determined by the sequence of its chemical "symbols."
-
A chain of nucleotides is a....
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A chain of amino acids is a...
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It is synthesized ("printed") by ribosomes
Questão 11
Questão
Match each term with its correct description. Making an mRNA copy of a gene.
Responda
-
DNA Replication
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transcription
-
translation
Questão 12
Questão
Match each term with its correct description: Copying all a cell's DNA, just before the cell divides into two cells.
Responda
-
DNA Replicaiton
-
transcription
-
translation
Questão 13
Questão
Match each term with its correct description: Reading mRNA code and printing a protein.
Responda
-
DNA Replication
-
transcription
-
translation
Questão 14
Questão
Choose the most correct answer to this question:
What are nucleotides?
Responda
-
The molecular symbols of the genetic code.
-
Chromosomes
-
Amino acids
-
Proteins
Questão 15
Questão
On the left are "letters" on one side of a DNA double helix. Add the correct complementary DNA letters, according to the "base-pairing" rule of DNA replication: CGTTA
[blank_start]_____[blank_end]
Responda
-
GCAAT
Questão 16
Questão
Match each biological structure to the job it does in the cell: "Unzips" a DNA molecule, in the process of DNA replication
Responda
-
helicase
-
tRNA
-
mRNA
-
ribosomes
Questão 17
Questão
Match each biological structure to the job it does in the cell: Prints proteins.
Responda
-
helicase
-
tRNA
-
mRNA
-
ribosomes
Questão 18
Questão
Match each biological structure to the job it does in the cell: Carries a "print this protein" message to ribosomes.
Responda
-
helicase
-
tRNA
-
mRNA
-
Ribosomes
Questão 19
Questão
Match each biological structure to the job it does in the cell: Delivers amino acids to ribosomes.
Responda
-
helicase
-
tRNA
-
mRNA
-
ribosomes
Questão 20
Questão
Select the TWO most precisely correct answers
What functions does DNA perform for the cell?
Responda
-
It prints proteins, from amino acids provided to it by tRNA.
-
The sequence of its nucleotides provide the code for how to print the cell's proteins.
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The full sequences of all its nucleotides can be replicated, so that when a cell can divides, each new cell gets a full copy of the "hard-drive".
Questão 21
Questão
The following processes happen in one of two places: Inside the nucleus
Responda
-
Transcription of mRNA from DNA gene
-
Synthesis (printing) of proteins
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Translation of mRNA message by ribosomes.
-
DNA replication
Questão 22
Questão
The shape of the protein is determined by[blank_start]...[blank_end]
The sequence of amino acids is determined by[blank_start]...[blank_end]
The sequence of mRNA nucleotides is determined by[blank_start]...[blank_end]
A protein's function is determined by[blank_start]...[blank_end]
Responda
-
amino acids
-
the shape of the protein
-
mRNA
-
DNA
-
amino acids
-
mRNA
-
shape of Proteins
-
DNA
-
amino acids
-
shape of proteins
-
mRNA
-
DNA
-
mDNA
-
DNA
-
amino acids
-
shape of proteins
Questão 23
Questão
The images we always see of chromosomes shaped like an "X" are actually "identical twin chromosomes" (chromatids), after DNA replication.
Responda
- True
- False
Questão 24
Questão
Which of the following are performed by proteins?
Responda
-
Transport amino acids to ribosomes.
-
Is translated by ribosomes.
-
Carry out active transport across the cell membrane.
-
Carry the genetic inheritance of a cell or organism.
-
Form complex cell structures (such as the cytoskeleton).
-
Act as enzymes
Questão 25
Questão
Which of the following are performed by RNA?
Responda
-
Transport amino acids to ribosomes.
-
Is translated by ribosomes.
-
Carry out active transport across the cell membrane.
-
Carry the genetic inheritance of a cell or organism.
-
Form complex cell structures (such as the cytoskeleton)
-
Act as enzymes
Questão 26
Questão
Which of the following are performed by DNA?
Responda
-
Transport amino acids to ribosomes.
-
Is translated by ribosomes.
-
Carry out active transport across the cell membrane.
-
Carry the genetic inheritance of a cell or organism.
-
Form complex cell structures (such as the cytoskeleton).
-
Act as enzymes
Questão 27
Questão
ONE of the following steps does NOT occur during DNA replication (right before a cell divides). Which step is NOT part of DNA replication?
Responda
-
The DNA double helix is "unzipped" by helicase protein (eventually, unzipping the entire length of every chromosome).
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Make mRNA copies of the DNA.
-
Add complementary DNA nucleotides to each side of the unzipped helix.
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Proofread two resulting helices.
Questão 28
Questão
Which "letters" (nucleotides) are found in the DNA "alphabet?"
Responda
-
U
-
A
-
G
-
C
-
T
Questão 29
Questão
Which "letters"(nucleotides) are in the RNA"alphabet?"
Responda
-
U
-
C
-
G
-
A
-
T
Questão 30
Questão
Match each energy-gathering process (below) with which organisms do this process.
Respiration: [blank_start]___[blank_end]
Photosynthesis: [blank_start]__[blank_end]
Responda
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Both autotrophs and heterotrophs
-
Autotrophs only
-
Heterotrophs only
-
Both autotrophs and heterotrophs
-
Autotrophs only
-
Heterotrophs only
Questão 31
Questão
Which of the following statements are TRUE about glycolysis?
Responda
-
Glycolysis occurs in a cell's cytoplasm
-
Glycolysis produces a small number of "recharged" ATP molecules, for each glucose broken down. Correct
-
Glycolysis requires oxygen
-
Glycolysis happens inside a cell's mitochondria.
Questão 32
Questão
Select each molecule that has high (chemical) energy
Responda
-
Water and CO2
-
ADP and phosphate
-
ATP
-
Oxygen
-
Glucose
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