Question

question 47
special proteins responsible for catalyzing reactions in the cell are called.
a polypeptides
b kinases
c enzymes
d reactants
question 48
1 point
the energy storage polysaccharide in plants is.
a a starch molecule
b a triglyceride molecule
c a glycogen molecule
d a cellulose molecule
question 49
1 point
the smallest unit of an element that still retains the property of an element is.
a a proton.
b a neutron.

Explanation:

Question 47

Enzymes are proteins that act as biological catalysts, speeding up chemical reactions in cells. Polypeptides are chains of amino acids. Kinases are a type of enzyme that phosphorylates other molecules. Reactants are the substances that participate in a chemical reaction.

Starch is the energy - storage polysaccharide in plants. Triglycerides are lipids used for energy storage in animals. Glycogen is the energy - storage polysaccharide in animals. Cellulose is a structural polysaccharide in plants (makes up the cell wall).

An atom is the smallest unit of an element that retains the properties of that element. Protons and neutrons are sub - atomic particles that make up the nucleus of an atom. A proton is positively charged, and a neutron is neutral. But they do not retain the properties of an element on their own.

Answer:

C. enzymes

Question 48