2026 TEST PAPER QUESTIONS AND
SOLUTIONS VERIFIED GRADED A+
◉ A dehydration reaction Answer: is used to form polymers
◉ Glycogen is to animal cells as ________ is to plant cells. Answer:
starch
◉ ______ is a polymer of glucose Answer: Cellulose
◉ A disaccharide, such as maltose, consists of two molecules of
glucose linked by what type of bond? Answer: glycosidic
◉ Fats and fatty acids Answer: are insoluble in water.
◉ The major class of macromolecules that stores energy and makes
up the major component of plasma membranes are Answer: lipids
◉ A phospholipid has ________ fatty acids attached to glycerol,
whereas a fat has ________. Answer: 2; 3
,◉ The portion of an amino acid that makes the amino acid unique
among the 20 different amino acids is Answer: the side chain or R-
group.
◉ An amino acid is to a protein as a ________ is to a nucleic acid.
Answer: nucleotide
◉ In order to visualize the fine structure of viruses and cytoskeletal
filaments at 10-25 nanometers in diameter the type of microscopy
that would be most effective is Answer: transmission electron
microscopy.
◉ Prokaryotes, such as bacterial cells, differ from eukaryotes in that
eukaryotes Answer: possess membrane-bound organelles.
◉ FtsZ, MreB, and CreS proteins regulate the shape and structure of
bacterial (prokaryote) cells. These proteins are homologous to the
________ in eukaryotes. Answer: cytoskelaton
◉ Ribosomes are the structures in the cell that produce Answer:
proteins
◉ The route that most accurately describes secretory protein
movement through the endomembrane system would be Answer:
, rough endoplasmic reticulum→vesicles→ Golgi apparatus→vesicles
→plasma membrane.
◉ Cyanide binds and impairs one of the molecules involved in the
synthesis of ATP. The target organelle for cyanide must be Answer:
mitochondria.
◉ The cytoskeletal structure(s) that are composed of actin and
regulate cell shape, cell movement, and muscle contraction include
Answer: microfilaments.
◉ When one oxygen atom shares two pairs of electrons with another
oxygen atom, O2 is formed via a(n) Answer: double covalent bond.
◉ The nucleus of an atom is composed of ________________A) protons.
Answer: protons and neutrons.
◉ Which of the following is not true of water? Answer: It is a
relatively poor solvent.
◉ What is the chemical mechanism by which cells break down
polymers? Answer: hydrolysis