Semester Final Review AP Biology

Question: How would you know if a molecule is a covalent bond or an ionic bond?

• metal to metal bond

• nonmetal to nonmetal bond

• nonmetal to metal bond

What is the difference between adhesion and cohesion?

• adhesion is the attraction of materials to different materials and cohesion is attraction to self

• adhesion is the attraction of materials to self, cohesion is the attraction to other materials

• adhesion and cohesion are the same thing

f an organism is found largely in the antarctic, will it have

• more unsaturated fatty acid chains

• more unsaturated fatty acid chains

• equal amounts of saturated and unsaturated fatty acid chains

• there are no organisms in antarctica

What makes an unsaturated lipid?

• double bonds between carbons in the fatty acid chains

• single bonds between carbons in the fatty acid chains

• triple bonds between the carbons in fatty acid chains

• double bonds between the hydrogens in fatty acid chains

What type of bonds are found between amino acids? ​ (a)   Which macromolecule is this part of?​ (b)  

• peptide bonds
• proteins
• covalent bonds
• hydrogen bonds
• carbohydrates
• lipids

What are the two types of folds in the secondary structure of proteins?

• alpha, beta
• only alpha

• only beta

• quaternary

What process is used to build macromolecules?

What process is used to break macromolecules?

What is a G-protein coupled receptor and where is it found?

• a protein with a secondary structure that passes through the membrane 7 times and needs GTP for energy

• a protein an ion channel and needs GTP for energy

• a protein requiring the dimerization of the proteins

• a protein requiring ATP

What is the major component of cell membranes?

• phospholipids

• cholesterol

• carbohydrate chains

• channel proteins