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Protiens
IB Biology 11 based on quizizz and notes
| Question | Answer |
|---|---|
| What can cause a change in the amino acid sequence of a protein? | Mutation |
| Which organelle contains rRNA and reads the mRNA to synthesize a protein? | Ribosome |
| DNA strand GTACAT transcribed to RNA | CAUGUA |
| What does a catalyst do? | Speeds up a chemical reaction |
| Mutations affect the _ _ _ of a protein. Because of this the proteins _ _ _ is affected as well. | shape,function |
| What is the monomer of a protein? | Amino acid |
| What kinds of food can you get protein from in your diet? | Eggs, meat, fish, nuts, and legumes |
| What do 3 nucleotides make? | Codon |
| How many nucleotides code for 1 amino acid? | 3 |
| Where does the water come from in a condensation reaction? | The amino and carboxyl groups |
| What type of reaction occurs when 2 amino acids are joined together? | Condensation |
| What are functions of proteins? | Catalysts, transport, and structure |
| What are proteins made of? | Amino acids |
| Does DNA or RNA contain uracil? | RNA |
| Does DNA or RNA contain thymine? | DNA |
| What is the structure of DNA? | Double helix |
| How many strands does RNA have? | 1 |
| Which can leave the nucleus DNA or RNA? | RNA |
| What can cause a protein to denature? | A change in temperature and/or pH |
| What structure determines the unique 3d shape of a protein? | tertiary structure |
| What is a protein? | A polymer made from amino acids |
| What structure involves the protein being folded due to hydrogen bonding? | Secondary structure |
| What holds the secondary structure of a protein in place? | Hydrogen bonds |
| What structure is just the organization of a polypeptide chain? | primary structure |
| What structure is made up of multiple polypeptide chains folded together? | Quaternary structure |
| What happens to a protein when it is denatured? | It becomes unstable and loses shape |
| What group is different in all amino acids? | R group |
| What do you call a chain of amino acids? | polypeptide chain |
| What type of bond connects amino acids? | peptide bond |
| What process turns DNA instructions into an RNA sequence? | Transcription |
| What process uses RNA to create proteins? | Translation |
| Any change in the sequence of DNA is… | Mutation |
| What happens when an enzyme is heated to a high temperature? | The shapes of the enzyme are altered or denatured. |
| When these bond together, they form a protein | Amino Acids |
| How do we denature the proteins we eat? | Cook them |
| How many amino acids are there? | 20 |
| What are ribosomes made of? | ribosomal RNA molecules and proteins |
| What is the transcription of the DNA sequence ACC GTG CAG GAT? | UGG CAC GUC CUA |
| What is the transcription of the DNA sequence TGG ACG GTC CTA? | ACC UGC CAG GAU |
| The mRNA leaves the ________ to find the ribosome to make proteins | Nucleus |
| Which of the following is not a feature of post-transcription? | Removal of exons by splicing |
| For which discovery about DNA do Watson and Crick receive credit? | The shape of DNA is a double helix |
| What is the function of RNA polymerase? | Adds RNA nucleotides to the 3' end of a growing strand |
| What must happen to the DNA molecule before mRNA can be created? | the 2 DNA strands must separate |
| The bottom of the tRNA molecule joins with the mRNA molecule because it has the ______ to the mRNA's codon | anticodon |
| What is the function of the smaller unit of the ribosome? | read the messenger RNA (mRNA) |
| Which type of chemical reaction is an example of anabolism?Condensation | |
| What brings the amino acids to the ribosome to assemble a protein? | tRNA |
| What part of the cell bonds amino acids together into proteins? | Ribosomes |
| What determines the shape and function of a protein? | The sequence of amino acids |
| Why must transcription occur in the nucleus? | DNA can’t leave the nucleus |
| What is the correct order for the steps of transcription? | unwind a little, unzip a little, add RNA, close DNA |
| How can a mutation in the DNA sequence result in NO change to the protein that is made? | There are multiple codons that can code for the same amino acid |
| Which type of ribosome creates the most proteins that are transported out of the cell? | bound |
| Which happens first transcription or translation? | transcription |
| What is tRNA’s job? | bring amino acids to the ribosome so they can be made into a protein |
| Where is the anticodon? | tRNA |
| What enzyme is used to make mRNA? | RNA Polymerase |
| Which type of ribosome creates the most proteins that are used by the cell? | Free-floating |
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