_____ aid in the coordination of the activities of adjacent animal
cells. Correct Answers Gap junctions allow for the passage of
material between cells, thus facilitating communication between
these cells.
_____ are surface appendages that allow a bacterium to stick to
a surface. Correct Answers Fimbriae enable bacterial cells to
stick to a surface.
A ________ cannot be hydrolyzed any further. Correct Answers
monosaccharide
A carbohydrate that yields many monosaccharides when
hydrolyzed is a _______. Correct Answers polysaccharide
A cell with a predominance of rough endoplasmic reticulum is
most likely ________. Correct Answers producing large
quantities of proteins for secretion
A cell with a predominance of smooth endoplasmic reticulum is
likely specialized to ________. Correct Answers synthesize
large quantities of lipids
A characteristic 9 + 2 arrangement of microtubules, consisting
of nine doublets of microtubules surrounding a pair of single
microtubules is associated with ________. Correct Answers
eukaryotic flagella and motile cilia
,A defect in which of the following intercellular junctions would
allow partially digested material to leak passively between the
cells of the small intestine into the abdominal cavity? Correct
Answers tight junctions
A dehydration reaction (or condensation reaction) is the process
in which _____. Correct Answers water molecules are produced
as a polymer is formed from monomers
A fat (or triacylglycerol) would be formed as a result of a
dehydration reaction between ________. Correct Answers three
molecules of 9 and one molecule of 10
A function of cholesterol that does not harm health is its role
_____. Correct Answers as a component of animal cell
membranes
A glycosidic linkage is analogous to which of the following in
proteins? Correct Answers a peptide bond
A hydrophobic amino acid R group (side group) would be found
where in a protein? Correct Answers on the inside of the folded
chain, away from water
A simple sugar is composed of equal parts carbon and water,
which gave rise to the general name of any sugar as a _______.
Correct Answers carbohydrate
A small protein (molecular weight = 25,000 daltons) is injected
into a cell and observed in the nucleus a short time later. What
type of transport has taken place? Correct Answers Passive
, transport (A 25,000-dalton protein is small enough to diffuse
through nuclear pores without any expenditure of energy.)
Amoebae move by crawling over a surface (cell crawling),
which involves ________. Correct Answers growth of actin
filaments to form bulges in the plasma membrane
Animal Cell Only Correct Answers centriole
Arrow A is indicating a(n) _____ protein. Correct Answers
structural
Arrow D is indicating a _____ protein. Correct Answers
receptor
Based on these data, what is the most likely function of the cells
in this experiment? Correct Answers phagocytosis (The cells in
this experiment were macrophages. These immune system cells
have many lysosomes for the destruction of bacteria and other
invaders brought into the cell via phagocytosis. The enzymes
(hydrolases) that carry out this catabolic activity are synthesized
in the endoplasmic reticulum, modified in the Golgi, and
transported to the lysosomes.)
Beginning within the nucleus, the first step leading to the
synthesis of a polypeptide is _____ Correct Answers
transferring of information from DNA to messenger RNA
Both DNA and RNA Correct Answers adenine, guanine,
cytosine, phosphate