Due to the negative intrapleural pressure, the pleural sac must remain airtight. If the pleural sac were broken, as in a piercing wound, which of the following would happen? Due to the negative intrapleural pressure, the pleural sac must remain airtight. If the pleural sac were broken, as in a piercing wound, which of the following would happen? 1. The lungs would burst. 2. The lungs would remain the same. 3. The lungs would expand outward. 4. The lungs would collapse.

Solutions to environmental problems in europe must

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.