AP Bio Chapter 2 AP Final Exam Questions Correctly Answered 2024.

AP Bio Chapter 2 AP Final Exam Questions Correctly Answered 2024. A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following functions is this cell type most likely specialized to perform? A The production and secretion of steroids B The destruction of toxic materials produced in other cells of the organism C The synthesis of polysaccharides for energy storage D The production and secretion of proteins - CORRECT ANSWER Answer D Correct. The cytosolic surface of the rough ER is covered by ribosomes that synthesize proteins that are then transported into the rough ER, then to the Golgi complex, and finally out of the cell. A group of mutations, known as MT-ND1, have been identified in mitochondrial DNA. These mutations are associated with a number of debilitating diseases stemming from the production of nonfunctional proteins in the mitochondria. Which of the following cellular deficiencies would most likely be related to these MT-ND1 mutations? A The cell is unable to synthesize most proteins required for normal cell functions. B The cell is unable to break down toxic materials and would accumulate large volumes of these materials. C The cell is able to synthesize proteins, but the proteins would not fold properly and would not contain the correct molecular tags for export from the cell. D The cell is unable to complete reactions related to electron transport and ATP production. - CORRECT ANSWER Answer D Correct. The electron transport chain and ATP production are associated with proteins in the inner membrane of the mitochondrion. Nonfunctional proteins in the mitochondrion are likely to result in reduced ATP production.