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WorksheetsProteins, RNA, and Mutations
Total questions: 23
Worksheet time: 27mins
Which describes the functions of proteins in living things?
structural, transport, signaling, catalysts, etc.
stores and transmits genetic information
stores energy and makes up cell membranes
quick energy and forming cell structure
Proteins are polymers of __________.
amino acids
fatty acids
carboxylic acids
nucleic acids
All proteins
have a unique structure that determines their unique function.
are exactly the same in function but different in structure.
are exactly the same in structure but different in function.
are enzymes.
The order of amino acids determines the ______ and ultimately the function of a protein.
shape
color
flavor
texture
Enzymes are ________ that act as ________.
proteins, catalysts
amino acids, proteins
proteins, amino acids
catalysts, carbohydrates
What is the function of enzymes in living things?
increase the rate of chemical reactions
form the basis of the plasma membrane
main energy molecule for a cell
insulation and protection
Enzymes are composed of...
Protein
Lipids
Carbohydrates
Starch
Which of the following is NOT a function of proteins?
stored energy
create muscle
speed up reactions as enzymes
fights infection in the form of antibodies
What is the shape of a protein?
chains
folded chains
rings
honeycomb
genes that code for individual proteins
proteins that bind with DNA and prevent transcription
DNA sequences that initiate transcription
small molecules that bind with repressor proteins
True or False: RNA uses deoxyribose sugar.
True
False
True or False: Transcription is the process by which the information in a strand of DNA is copied into a messenger RNA (mRNA).
True
False
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
Substitution
Deletion
Insertion
Frameshift
Which of the following would result in a frameshift mutation?
Insertions only
Substitution only
Deletion only
Insertions and Deletions
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
Substitution
Deletion
Insertion
Inversion
A mutation is defined as:
A change in the cell's structure
Anything that changes in an embryo
Any change in the physical features of a human
A change in the DNA sequence
Why are insertion and deletion (frameshift) mutations so harmful?
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
They insert things that an organism doesn't need.
They often delete things that organisms need.
Insertion and deletions are not any more harmful than substitution mutations.
Which mutation will cause translation to stop?
Mutations 1 and 3 only
Mutation 1 only
Mutation 2 only
Muations 1, 2, 3
