bio summer

A quaternary structure of a protein is formed when __________ are bonded together.

More than one polypeptide chain.

A pair of centrioles is enclosed in a __________.

centrosome.

Lysosomes are vesicles from the __________ that contain digestive enzymes.

Golgi apparatus.

The site of photosynthesis is the __________.

chloroplast.

Electronegativity is defined as the __________ of an atom to accept an electron.

willingness.

Polar molecules have __________ and __________ charges.

partial positive; negative.

Cohesion is the attraction between __________ molecules.

same.

Adhesion is the attraction between __________ molecules.

different.

pH measures a substance's willingness to donate __________ ions.

hydrogen.

An acid is a substance that __________ hydrogen ions.

donates.

A base is a substance that __________ hydrogen ions.

receives.

Macromolecules are large __________ made up of smaller subunits.

organic molecules.

Monomers are the __________ of organic molecules.

building blocks.

Polymers are a group of __________ that have been combined.

monomers.

Starch is a polysaccharide that is a chain of __________ glucose molecules.

alpha.

Glycogen is a polysaccharide that is made of __________ glucose molecules.

alpha.

According to the cell theory, the cell is the __________ form of life.

smallest.

The first principle of cell theory states that all life is made of __________ or more cells.

one.

The second principle of cell theory states that cells only arise from __________ cells.

pre-existing.