AP Chemistry

Which type of bond is characterized by equal "sharing" of electrons between two non-metals?

• non-polar covalent

• polar covalent

• coordinate

• hydrogen

• ionic

Which type of bond is characterized by unequal "sharing" of electrons between two non-metals?

• non-polar covalent

• polar covalent

• coordinate

• hydrogen

• ionic

Which type of bond is characterized by one atom/molecule donating electrons to another atom/molecule?

• non-polar covalent

• polar covalent

• coordinate

• hydrogen

• ionic

Which type of bond (more of a force) is formed when a polar molecule gains attraction to a separate, charged atom/molecule?

• non-polar covalent

• polar covalent

• coordinate

• hydrogen

• ionic

Tags

NGSS.HS-PS1-3

What is a Ligand?

• A molecule that binds to another, larger molecule through IMFS.

• A non-charged molecule undergoing a dipole-dipole moment.

• A form of covalent bonding between an ion and an enzyme.

• A foreign molecule the immune system stifles by binding to it.

Which of the following is an example of shape dictating function? mark all that apply

• The helical shape of DNA prevents it from passing through nuclear pores.

• The polarity or charge of amino acids determines how it will folds.

• Oxygen must be transported by hemoglobin because it does not dissolve easily in blood.

• Carbon's size and four valence electrons makes it a key element for organic molecules.

Tags

NGSS.HS-LS1-6

Serotonin is a stress reliever. It works while it is floating in the cell. However, your body absorbs it in special channels to prevent built up. Celexa relieves stress for those who don't produce serotonin properly. Which of the following is an accurate way Celaxa might work for stress relief?

• Celexa has serotonin in it, so it increases the amount of serotonin available.

• Celexa stimulates the pituitary gland to create more serotonin.

• Part of Celexa is the same shape as serotonin, part is larger, so it blocks the channels form working.

• Serotonin requires monomers to build it, and Celexa supplies the monomers for protein development.

Tags

NGSS.HS-LS1-3

Carbon is important for organic chemistry because...

• It can form triple bonds

• It is found in all macromolecules and their monomers

• It forms ionic bonds with many molecules

• You need it to absorb oxygen

Tags

NGSS.HS-LS2-5

Which of the following is NOT a characteristic of organic molecules.

• ionization of salts

• carbon atoms form covalent bonds

• contain oxygen and hydrogen

• contains electrons that interact with other molecules

One reason we may infer viruses are considered non-living is because...

• They maintain homeostasis using positive feedback loops

• They maintain homeostasis using negative feedback loops

• They have a cell wall composed of chitin

• They can contain single stranded DNA

• Their ligand receptors are composed of proteins