Carbohydrates
What are carbohydrates
A carbohydrate is a biomolecule consisting of carbon, hydrogen and oxygen atoms, usually with a hydrogen
The structures of different types of lipids are studied and compared
A molecule that has one cis double bond in a linear carbon chain.
What food contains protein
meat, poultry, seafood, beans and peas, eggs, processed soy products, nuts, and seeds are considered part of the Protein Foods Group.
Which ratio is constant for DNA?
he molar concentration of purine bases A and G is equal to the molar concentration of pyrimidine bases T and C because one of each type makes up a base pair. Because of base pairing rules, A = T and G = C. The specific A – T and G – C content varies from species to species. But in any one species the ratio is constant.
What foods contain carbohydrates?
Which of the following structures is a 20:2 (Δ4,9) fatty acid?
CH3(CH2)9CH = CH(CH2)3CH = CH(CH2)2COOH
During the formation of the peptide bond which of the following takes place?
The α-amino group of one amino acid acts as a nucleophile to displace the hydroxyl group of another amino acid forming a peptide bond.
Arrangement of nucleotides in DNA can be seen by
It is a scientific method used to determine the arrangement of atoms of a crystalline solid in a three dimensional space.
Can or should I eliminate carbohydrates from my eating pattern?
Which of the following structures is a triglyceride?
CH2 – O – C – (CH2)14CH3 O || CH – O – C – (CH2)14CH3 O || CH2 – O – C – (CH2)14CH3
Peptide bond is a
Two amino acids are covalently joined through a substituted amide linkage called peptide bond.
Which of the following leads to disruption of nucleosomal structure?
Methylation denatures nucleosomal structure.
what are carbohydrates made of?
They are molecular compounds made from just three elements: carbon, hydrogen and oxygen.
Which of the following is a characteristic of both triacylglycerols and glycerophospholipids?
Both contain fatty acids and are saponifiable.
The average molecular weight of an amino acid residue in a protein is about
The average molecular weight of an amino acid residue is nearer to 128. Because a molecule of water is removed to create each peptide bond, average molecular weight is 128 – 18 = 110.
Which of the following is true about Z-DNA helix?
It is a temporary conformation of DNA
It has more base pairs per turn than B-DNA.
what do Carbohydrates do
provide your body with energy.
Which of the following is a characteristic of both waxes and terpenes?
Both can contain oxygen.
Which of the following is not the classified form of conjugated proteins?
On the basis of the chemical nature of their prosthetic groups conjugated proteins are classified into lipoproteins, glycoproteins and metalloproteins.
Which of the following statements is true?
The two strands of DNA run antiparallel to each other.
The common form of DNA is B-DNA which is right handed.