Chapter 4 Notes Deck 2 Flashcards
Another name for Krebs cycle
Citric acid cycle
Krebs cycle
Series of chemical reactions that lead to the release of energy from carbohydrates
Fat molecule must
Undergo hydrolysis to release energy
Two products of protein digestion
X
How are metabolic pathways regulated
Regulated by certain enzyme that is responsible for one of its steps
Gene
Portions of DNA molecules that contain the genetic information for making particular proteins
How are genes necessary to cell metabolism
Genes tell cells how to construct specific protein molecules which can in turn function as structural materials, enzymes and other vital bio chemicals
Protein synthesis occurs in
Cell cytoplasm
Bases of nucleotides in DNA
Adenine, thymine, cytosine, guanine
Structure of dna
Ladderlike structure in which the uprights represent the sugar and phosphate backbones of the two strands, and the rungs represent the organic bases (double helix)
Nucleotide
Sugar, phosphate, base
How does rna differ from dna
Rna single strand. Dna double strand. Rna has ribose. Dna has deoxyribose. Dna has uracil. Dna has thymine.
Role of mRNA in protein synthesis
Carries the information in a genes nucleotide sequence from the nucleus to the cytoplasm for protein synthesis
tRNA
Correctly aligns amino acids to form proteins. Serves as a guide for each amino acid
Transcription
mRNA copying DNA
DNA unzips
RNA puts complimentary base pairing