Macromolecules - Lipids
What specific type of covalent bond connects monosaccharaides?
A glycosidic linkage
How many strands is RNA?
1
How many strands is DNA?
2
What specific type of covalent bond links the two parts of a lipid?
Ester bond
Which level of protein structure will combine multiple protein subunits?
Quaternary
The two main roles of carbohydrates are to provide structural support in organisms and what other crucial function
To provide a source of stored energy
Which nitrogenous base appears in RNA and not in DNA?
Uracil
Which nitrogenous base appears in DNA and not RNA?
Thymine
What two molecules bind to make up a lipid?
1 glycerol & 3 fatty acids
Which specific type of covalent bond links nucleotides together?
Phosphodiester bonds
The primary structure of proteins are held together with this specific type of covalent bond.
A peptide bond
This is the process of synthesizing RNA
Transcription
This is the process of copying DNA
Replication
Regarding a phospholipid, are the heads hydrophobic or hydrophilic?
Hydrophilic
What are the two main ideas for how life originated on Earth
Chemical evolution and meteorites from outside of Earth
What are the three parts of a nucleotide?
A pentose sugar, phosphate group, nitrogenous base
Which pentose sugar appears in RNA?
Ribose
Which pentose sugar appears in DNA?
Deoxyribose
Unsaturated fatty acids have only single bonds, which causes kinks in the chain..... true or false
FALSE. It's true that unsaturated fatty acids cause kinks, but it's because they have double bonds. Only saturated fatty acids have single bonds
In which direction do nucleic acids grow?
5'-3'
Acceptable responses:
Heat
pH
Chemical environment
Other (must be deemed correct by the judges)
Regarding the nitrogenous base that is only seen in RNA, is it a pyrimidine or a purine?
Pyrimidine
What type of bond holds complimentary nitrogenous bases together across two strands of DNA?
Hydrogen bond
Which steroid, produced in the liver, is the precursor for all other steroids?
Cholesterol
Which organelle in the cell is responsible for DNA replication?
The nucleus