A student is observing a cell under the microscope. It is observed to have supercoiled DNA with histones. Which of the following would also be observed by
... [Show More] the student?
a. A single circular chromosome
b. A nucleus
c. Free-floating nuclear material
d. No organelles
b.
A nurse is instructing the staff about cellular functions. Which cellular function is the nurse describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy?
a. Metabolic absorption
b. Communication
c. Secretion
d. Respiration
d.
A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of the genetic information be contained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus cytoplasm
c.
Which of the following can remove proteins attached to the cell's bilayer by dissolving the layer itself?
a. Peripheral membrane proteins
b. Integral membrane proteins
c. Glycoproteins
d. Cell adhesion molecules
b.
Which of the following can bind to plasma membrane receptors?
a. Oxygen
b. Ribosomes
c. Amphipathic lipids
d. Ligands
d.
A nurse is reviewing a report from a patient with metastatic cancer. What alternation in the extracellular matrix would support the diagnosis of metastatic cancer?
a. Decreased fibronectin
b. Increased collagen
c. Decreased elastin
d. Increased glycoproteins
a.
Which form of cell communication is used to relate to other cells in direct physical contact?
a. Cell junction
b. Gap junction
c. Desmosome
d. Tight junction
a.
Pancreatic beta cells secrete insulin, which inhibits secretion of glucagon from neighboring alpha cells. This action is an example of which of the following signaling types?
a. Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal
a.
In cellular metabolism, each enzyme has a high affinity for a:
a. solute.
b. substrate.
c. receptor.
d. ribosome.
b.
An athlete runs a marathon, after which his muscles feel fatigued and unable to contract. The athlete asks the nurse why this happened. The nurse's response is based on the knowledge that the problem is result of a deficiency of:
a. GTP.
b. AMP.
c. ATP.
d. GMP.
c.
Which phase of catabolism produces the most ATP?
a. Digestion
b. Glycolysis
c. Oxidation
d. Citric acid cycle
d.
A nurse is teaching the staff about the phases of cellular catabolism. Which phases should the nurse include?
a. Digestion, glycolysis, oxidation, and the citric acid cycle
b. Diffusion, osmosis, and mediated transport
c. S phase, G phase, and M phase
d. Metabolic absorption, respiration, and excretion
a.
A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his continued muscle performance?
a. Electron-transport chain
b. Aerobic glycolysis
c. Anaerobic glycolysis
d. Oxidative phosphorylation
c.
A faculty member asks a student to identify the appropriate term for the movement of a solute from an area of greater to lesser concentration. Which answer indicates the nursing student understood the teaching?
a. Osmosis
b. Diffusion
c. Hydrostatic pressure
d. Active transport
b.
Which description accurately describes electrolytes?
a. Small lipid-soluble molecules
b. Large protein molecules
c. Micronutrients used to produce ATP
d. Electrically charged molecules
d. [Show Less]