Match each term to its definition or characteristic.
a.galactose
k.catalyst
b.electron
l.polar
c.radioactivity
m.buffer
d.proton
n.anion
e.amino group
o.enzymes
f.glucose
p.matter
g.compounds
q.neutron
h.carboxyl group
r.atomic weight
i.cation
s.fructose
j.glycogen
-What differentiates one element from another?

Question

Quizplus · Accepted Answer

The number of protons is what differentiates one element from another. This is known as the element's atomic number.

Answer: F, A, S
 Glucose, galactose, and fructose are all monosaccharides (simple sugars) that are important sources of energy for cellular processes.

Answer: G
 Compounds are substances made up of two or more different elements that are chemically bonded together.

Answer: E
 An amino group consists of a nitrogen atom bonded to two hydrogen atoms (-NH2) and is found in amino acids, the building blocks of proteins.

Answer: H
 A carboxyl group consists of a carbon atom double bonded to an oxygen atom and also bonded to a hydroxyl group (-COOH). It is found in organic acids.

Answer: J
 Glycogen is a complex carbohydrate made up of many glucose molecules linked together. It is stored in the liver and muscles and is a source of energy for the body.

Answer: K, O
 Catalysts are substances that speed up chemical reactions without being used up or changed in the process. Enzymes are biological catalysts that are important in many metabolic pathways in organisms.

Answer: L
 Polar molecules have an uneven distribution of charge, which creates a positive end and a negative end. This can affect how the molecule interacts with other polar or charged substances.

Answer: M
 A buffer is a solution that can resist changes in pH when an acid or base is added to it. Buffers are important in maintaining stable pH environments in living systems.

Answer: N, I
 An anion is a negatively charged ion, meaning it has gained one or more electrons. A cation is a positively charged ion, meaning it has lost one or more electrons.

Answer: P
 Matter is anything that has mass and takes up space. This includes all living and non-living things in the universe.

Answer: Q
 Neutrons are subatomic particles found within the nucleus of an atom. They have no charge and their number can vary within a given element, leading to different isotopes.

Answer: R
 Atomic weight is the average weight of all the isotopes of an element, taking into account their relative abundances.

Match Each Term to Its Definition or Characteristic