Diagnostic Test> 80-question diagnostic test
2024 latest
Which mutation most often results in only one incorrect amino acid in the final protein?
Missense Mutation, Nonsense Mutation, Silent Mutation, Frameshift Mutation - AnsMissense mutation
(a point mutation)
Which of the following molecules is NOT expected to drain to the liver prior to arriving at the vena cava?
Vitamin C, Vitamin E, Alanine, Galactose - AnsVitamin E is the only molecule listed that is lipid soluble
and is absorbed by the lacteals in the intestines.
Gel electrophoresis works by separating the pieces of a protein - Ansby size
Which mechanism of transport does water primarily use to move through the cell membrane?
Facilitated transport, osmosis, secondary active transport, primary active transport - Ansfacilitated
transport; Aquaporins which are transport channels that carry out facilitated diffusion, water does
diffuse through the cell membrane to a certain extent via osmosis but the volume of water transport
through osmosis is relatively limited by the hydrophobic nature of the cell membrane
Which mechanism of transport requires ATP to move a molecules against its concentration gradient?
Primary active transport, Secondary active transport, Facilitated transport, Osmosis - AnsPrimary Active
Transport (secondary active transport uses another molecule's or ion's concentration gradient)
Which of the following are NOT granulocytic cells? Neutrophils, Basophils, Mast Cells, T cells - AnsT cells
(along with B cells are lymphocytes; granulocytes are a category of white blood cells characterized by the
presence of granules in their cytoplasm)
salivary amylase aids in the digestion of: lipids, polysaccharides, polypeptides, monosaccharides -
Anspolysaccharides (such as starches are first broken up in the mouth by salivary amylase;
monosaccharides are not metabolized until glycolysis or other metabolic pathways)
, Which process results in the net production of 36 ATP? Anaerobic respiration, the electron transport
chain, the Krebs cycle, Aerobic respiration - AnsAerobic respiration (glycolysis, the Krebs cycle, and the
electron transport chain together comprise aerobic respiration which nets 36 ATP)
How is the glycolytic process of cellular respiration categorized? Catabolic, Anabolic, Emetic, Hyperbolic -
AnsCatabolic (breaks down molecules, anabolism builds them)
Motor neurons are efferent/afferent and enter the spinal cord on the ventral/dorsal side - Ansefferent
and ventral side (SAME DAVE- sensory, afferent, motor, efferent; dorsal afferent, ventral efferent)
Chief cells in the stomach contain pepsinogen. Why does pepsinogen NOT damage the chief cells prior to
secretion - Anspepsinogen is a zymogen that is activated by HCl
As the Ice Age altered global climates, mammoths evolved a thicker layer of fur. What kind of population
selection is this? Disruptive, Specialized, Directional, Stabilizing selection - AnsDirection selection (when
an extreme phenotype is favored over others)
A human egg experiences autosomal non-disjunction during meiosis. Once fertilized, what could be a
resulting chromosomal abnormality found in the embryo? Edward's syndrome, Turner's syndrome,
Klinefelter syndrome, Poly-Y syndrome - AnsEdward's syndrome (is trisomy 18 while the rest of the
answer choices deal with nondisjunction of the sex chromosomes)
As a baseball pitcher throws fastballs, what prevents the surfaces of his arm bones from rubbing against
each other? tendons, skeletal muscle, the epiphyseal plate, hyaline cartilage - Anshyaline cartilage
(covers the bones at the point of contact in joints)
Which muscle type (s) is/are always uninucleated? - Anssmooth muscle (have only one nucleus, cardiac
cells have one or two, and skeletal cells have many)
What component of the cell membrane maintains fluidity?
cholesterol, transmembrane proteins, phospholipids, surface proteins - Anscholesterol (in a way disrupts
the phospholipids from forming a tight crystalline structure and keeps the membrane fluid)
Which of the following bacteria tend to be spherical in shape?
