03-LRQ Biological Molecules

Biol 2002

58 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Polar and non-polar bonds are both types of covalent bonds.
True
Carbon can form both polar and non-polar bonds.
True
Bonds between carbon and hydrogen are polar.
False
When carbon forms a bond with oxygen, the electrons spend more time orbiting around the carbon.
False
Carbon-oxygen bonds are polar.
True
Polar bonds form when the atoms in the bond have different electronegativities.
True
Amino groups contain N-H bonds, which are non-polar.
False
Phosphate groups contain P-O bonds, which are polar.
True
At cellular pH, phosphate groups and hydroxyl groups are negatively charged and amino groups are positively charged
True
Which of the following atoms are present in nucleic acids: C, H, O, N, P, S


A. All are present B. C, H, O, N, and P are present C. C, H, O, P are present D. C, H, O, P, and S are present
B. C, H, O, N, and P are present
If you add radioactive sulfur to cells and allow it to be incorporated into molecules synthesized by the cell, you'll find most of the sulfur in



Protein B. DNA C. Carbohydrates D. RNA E. Lipids

Protein
Monomers can be joined by hydrogen bonds to form polymers.
False
If you hydrolyze a polymer, you will release monomers.
True
Proteins are polymers of A. Lipids B. Deoxynucleotides C. Amino acids D. Sugars E. Nucleotides
C. Amino acids
Each strand of a DNA double helix is a polymer of


A. Sugars B. Deoxynucleotides C. Nucleotides D. Lipids E. Amino acids
B. Deoxynucleotides