Chemistry/Biochemistry/Organic Chemistry Flashcards
(20 cards)
What is the difference between carbon-12 and carbon-14? (Hint: 12 and 14 are mass #)
.The number of neutrons in the nucleus.
How many water molecules are released when 4 amino acids form three peptide bonds?
3 water molecules
When atoms share electrons unequally…
a polar covalent bond is formed.
Which functional group accepts positively-charged hydrogen ions from water because it is basic?
Amino Group
Identify the macromolecule in the image below.
Protein
What is the function of fats for living organisms?
long term energy storage
The types of bonds that form between slightly positive atoms on one molecule and the slightly negative atoms on a different molecule are
hydrogen bond
Which level of protein structure occurs between two or more different polypeptides?
Quantenary Structure
How are the subunits of proteins linked together?
peptide bonds
If a hydroxyl functional group is present, which of the following is likely to be true?
The compound will dissolve in water
What is the monomer of proteins?
Amino Acids
Which 4 elements make up most of all living matter?
Carbon, Hydrogen, Oxygen
Question 8
Fatty Acid
Which statement about polymers is not true?
polymers consist of more than one type of monomer
The three parts of a nucleotide are a phosphate, a 5-carbon sugar, and
phosphate
Which of the macromolecules contain nitrogen?
nucleic acids and proteins
The image depicts which level of structure in proteins?
Secondary
The image below shows a polymer of glucose molecules. What type of macromolecule is this?
carbohydrates
Which type of lipid forms the primary structure of the cell membrane?
phsopholipid
When water freezes the molecules form a matrix by forming hydrogen bonds and
Becomes less dense it water
