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Bio test
| Question | Answer |
|---|---|
| What is the central dogma | For every living thing, DNA codes to mRNA which codes for proteins. |
| How can the Central dogma explain how GFP can be put into another organism to make it glow? | Because the way genes are made into proteins is true for ALL life on earth, the GFP gene can be used to make a glowing protein for ANY organism |
| Monomer: Amino acid | Drawing . . . . . . . . . . . . . . . . . . |
| Polypeptide | 0-0-0-0-0-0-0-0-0-0-0 |
| Polymer: Protein | /-0-0-0-0-0-0 0-0-0-/-0-0-0-0 /-0-0-0-0-0-0 |
| True or false: Changing the shape of a protein could cause it to not work properly? | True |
| Characteristics of DNA | -Sugar=Deoxynibose-Double strand-long - Tbase -Staus in nucleus-Sugar phosphate backbone-4 letter "code"-A,C,G bases |
| Characteristics of mRNA | Sugar=Ribose-single strand-Short-U base- In nucleus or cytoplasm-Sugar phosphate backbone-4 letter "code"-A,C,G bases |
| Step 1 of the 5 concise steps | mRNA "copies" a gene from DNA in the nucleus using complementary bases. |
| Step 2 of the 5 concise steps | mRNA leaves the nucleus. |
| Step 3 of the 5 concise steps | mRNA attaches to a ribosome. |
| Step 4 of the 5 concise steps | tRNA bring the amino acid that matches the mRNA's codon, 3 letters at a time. |
| Step 5 of the 5 concise steps | The polypeptide strand of amino acids fold into a protein. |
| Characteristics of Transcription | Happens in nucleus-DNA --> mRNA-Makes a copy of GENE- happens in a cell- uses mRNA-A,C,G nucleotides |
| Characteristics of Translation | happens in cytoplasm-mRna--> amino acids-ribosomes tRNA- makes a protein-happens in a cell- uses mRNA-A,C,G nucleotides |
| What is a mutation? | A "typo" or error in the DNA code / pattern of nucleotide sequence. |
| How and where can a mutation happen in a cell. | A mutation can happen during DNA replication in the nucleus, when a nucleotide A,T,C, or G is subsititued, inserted, or deleted. |
| What is an enzyme? | A protein that speeds up chemical reactions in the body by lowering activation energy. |
| What is the role of an enzyme in the body, and why does the shape of an enzyme matter? | An enzyme makes processes go faster, the shape only works with certain molecules. |
| How is an enzyme like a lock and key? | An enzyme has to fit together in the perfect shape to match the substrate. This is like how alock only works with a specifically shaped key. |
| How is Activation energy related to enzymes | Enzymes can lower / decrease the amount of energy needed for chemical reactions. |
| How is pH related to enzymes | If an environment isn't "Just right," the protein enzyme will denature (change shape) |
| How is temperature related to enzymes | If the enviornment is too hot, the enzyme will denature (change shape) |
| What could happen if an enzyme is denatured? | The enzyme could change shape, not "fit" with its substrate, and NOT speed up the chemical reaction. |