1.5 Flashcards
what reaction is the nucleotide combined together
condensation
what 3 things do nucleic acids have in them
phosphate group - circle
pentose sugar - hexagon
organic base either pyramidine or purine
what is the structure of ATP?
base adenine, sugar ribose , 3 phosphate groups
advantages of ATP
only one enzyme needed and released in small amounts
what is the structure of DNA?
2 polynucleotide stands wound in a double helix
what sugar does the DNA have
deoxyribose
what are the bases in DNA
adenine and thymine
guanine and cytosine
purines : A G
prymidines : C T
2 nucleic acids bonded together what is the bond?
hydrogen bonds
what is the structure of RNA?
single stranded
contains sugar ribose
contains uracil instead of thymine
2 functions of DNA?
replication
protein synthesis
3 types of replication
conservative
semi- conservative
dispersive
5 stages of protein synthesis
DNA - transcription in nucleus - mRNA- translation in ribosome - polypeptide
chromosomes are made from DNA wrapped around…?
HISTONE
3 stages of mitosis?
interphase
mitosis
cytokinesis —> division of cytoplasm to form daughter cells
what 4 things happen is prophase?
chromosomes condense - get shorter
pairs separate
protein micro tubes form - makes spindle
nuclear envelope disintegrates
