BioBeyond Unit 6: Chemical Basis of Life
Questions and Answers| Latest Update
What biopolymer or macromolecule do you think the major component is? lipids
How are these arranged in the membrane? Phospholipids are arranged with the
hydrocarbon "tail" groups facing each other.
Both molecules have covalent bonds: what type of bond is that? A bond where electrons
are shared.
What do you think that means about the interaction between phosphate and water? Water
and the head of a phospholipid attract each other like magnets, so they interact well.
How are hydrogen bonds different from covalent and ionic bonds? Select all that apply:
Hydrogen bonds don't involve electrons being shared or transferred
Hydrogen bonds occur with other molecules instead of inside molecules
Do you think they would be polar like the phosphorous group? The tail will not be polar
like the phosphorous group.
Do you think they would interact with water as well as, better than, or less than the head group?
The tail end will interact with water less than the head group.
, A hydrophilic
B hydrophobic
C hydrophilic
Which molecules do you think come from and indicate the presence of life? Cells
Organelles
Amino acids
Proteins
Nucleotides
Nucleic acids
Monosaccarides
Carbohydrates
Questions and Answers| Latest Update
What biopolymer or macromolecule do you think the major component is? lipids
How are these arranged in the membrane? Phospholipids are arranged with the
hydrocarbon "tail" groups facing each other.
Both molecules have covalent bonds: what type of bond is that? A bond where electrons
are shared.
What do you think that means about the interaction between phosphate and water? Water
and the head of a phospholipid attract each other like magnets, so they interact well.
How are hydrogen bonds different from covalent and ionic bonds? Select all that apply:
Hydrogen bonds don't involve electrons being shared or transferred
Hydrogen bonds occur with other molecules instead of inside molecules
Do you think they would be polar like the phosphorous group? The tail will not be polar
like the phosphorous group.
Do you think they would interact with water as well as, better than, or less than the head group?
The tail end will interact with water less than the head group.
, A hydrophilic
B hydrophobic
C hydrophilic
Which molecules do you think come from and indicate the presence of life? Cells
Organelles
Amino acids
Proteins
Nucleotides
Nucleic acids
Monosaccarides
Carbohydrates
