What is one function of the type II alveolar cells?
A. Production of surfactant
B. Lining the pleural space
C. Secretion of mucus
D. Make up the majority of the epithelial wall of the alveoli
E. Phagocytizing bacteria and other foreign particles
Answer: A
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Describe ribosomes. select all that apply.
a) each ribosome is composed of several enzymes and ribosomal RNA (rRNA) molecules b) ribosomes are found in the cytosol and on rough ER c) ribosomes play an important role in the process of transcription d) ribosomes contain anticodons, 3-nucleotide sequences that are complementary to mRNA codons e) ribosomes are made up of subunits that come together only when translating mRNA
The countercurrent multiplier is a system by which the
A. nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla. B. nephron loop dilutes the concentration of solutes in the tubular fluid at its hairpin turn. C. vasa recta secretes multiple amounts of metabolic wastes against their concentration gradient. D. vasa recta becomes more concentrated with nitrogenous wastes than the urine.
Beta oxidation is the initial phase of fatty acid oxidation, and it occurs in the cytoplasm
Indicate whether the statement is true or false
The surface of articular cartilage is
A) slick. B) flat. C) smooth. D) rough. E) both slick and smooth.