A 40-Year-Old Man Presents with Hemoptysis and Renal Failure

question 13

Multiple Choice

A 40-year-old man presents with hemoptysis and renal failure. A kidney biopsy specimen revealed linear deposits of IgG in glomerular basement membranes and crescents between the glomerular capillary loops and the Bowman capsule. The antibodies causing these pathologic changes react with

• A) laminin
• B) fibronectin
• C) collagen type I
• D) collagen type IV
• E) podocytes of glomerular epithelial cells

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Definitions:

Energy Flow

The movement of energy through a food chain or ecosystem, typically from the sun through producers to consumers and finally to decomposers.

Trophic Level

The position an organism occupies in a food chain, based on its feeding relationships, ranging from primary producers to apex predators.

Ecosystem

A community of interacting organisms and their physical environment.

Community

A group of interacting living organisms sharing a populated environment.