Select the best answer or answers from the choices given: A pancreas cell makes proteins (enzymes) that it releases to the small intestine. Which of the following best describes the path of these proteins from synthesis to exocytosis at the pancreatic cell’s plasma membrane (PM)? (a) Golgi S rough ER S PM, (b) smooth ER S Golgi S lysosome S PM, (c) rough ER S Golgi S PM, (d) nucleus S Golgi S PM.

Select the best answer or answers from the choices given: A pancreas cell makes proteins (enzymes) that it releases to the small intestine. Which of the following best describes the path of these proteins from synthesis to exocytosis at the pancreatic cell’s plasma membrane (PM)? (a) Golgi S rough ER S PM, (b) smooth ER S Golgi S lysosome S PM, (c) rough ER S Golgi S PM, (d) nucleus S Golgi S PM.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter2: Cell Physiology

Section: Chapter Questions

Problem 11RE

See similar textbooks

Similar questions

Which of the following statements is true about the Golgi bodies?
Gaucher disease, caused by the inhibited digestion of lipids, results in the accumulation of fatty acids within many organs in the body and leads to their subsequent dysfunction. Which of the following describes the most likely subcellular component and related process responsible for the development of Gaucher disease? A B с D Lysosomes contain insufficient amounts of enzymes necessary for the metabolism of lipids. The Golgi complex produces vesicles with highly permeable membranes that cannot ef- fectively regulate the movement of particles. Mitochondria are not producing a sufficient amount of ATP required for the digestion of lipids. The rough endoplasmic reticulum contains an unusually high number of ribosomes, re- sulting in an overproduction of digestive enzymes.
Lysosomes and peroxisomes are both small, membrane-enclosed sacs. Which of these functions in (a) both digestion and synthesis of molecules and (b) digestion of unwanted organelles?
What are lysosomes? How do they participate in intracellular digestion? What might happen if lysosomes released their enzymatic contents into the cytoplasm?
Secretory vesicles fuse with the cell membrane to release their contents to the outside of the cell. In this process, the membrane of the secretory vesicle becomes part of the cell membrane because small pieces of the membrane are continually added to the cell membrane, one would expect the cell membrane to become larger and larger as secretion continues. The cell membrane stays the same size, however. Explain how this happens.
I am confused as to why (d) or (e) are not correct. Is it not (d) because the inner surface of the vesicle becomes the extracellular component? And what about (e)? Is it because it's not between the organelles and the cytosol, but rather between the cytosol and the extracellular space?
Each of the following conditions involves a disorder in the function of an organelle or other cell structure. In each case, identify the organelle or structure involved and indicate whether it is likely to be underactive or active. Give brief a brief explanation each. a. A man suddenly felt weak and manifested cyanide poisoning symptoms after ingesting undercooked cassava which contains cyan glycosides. b. A young man learns that he is infertile because his sperm are non-motile. A maize plant is unable to survive due to recessive lethal gene causing albinism. d. An infant is placed on a low phenylalanine diet as his newborn screening results revealed that he inherited phenylketonuria. e. A man develops pleiomorphic liposarcoma (a rare type of cancer) and is told that the cause of the problem is a hard mass of cells in his right inner thigh that rapidly increased in size in a C. matter of two months.
Secretory vesicles fuse with the cell membrane to release their contents to the outside of the cell. In this process, the membrane of the secretory vesicle becomes part of the cell membrane. Because small pieces of membrane are continually added to the cell membrane, we would expect the cell membrane to become larger and larger as secretion continues. However, the cell membrane stays the same size. Explain how this happens.
Identify the false statement about lysosomes. (a) They have the same structure and function as peroxisomes. (b) They form by budding off the Golgi apparatus. (c) Lysosomal enzymes do not occur freely in the cytosol in healthy cells. (d) They are abundant in phagocytic cells.
Of the following cell membrane lipids, which one 1) prefers to reside in the inner leaflet (or inner half) of the membrane bilayer, AND 2) is not zwitterionic at physiological pH (7.4)? 1. SM (sphingomyelin) is inner-leaflet & NOT zwitterionic 2. PC (phosphatidylcholine) is inner-leaflet & NOT zwitterionic 3. PS (phosphatidylserine) is inner-leaflet & NOT zwitterionic 4. 2 of these 3 responses are correct
Describe fats and oils, and what makes triglycerides solid (fats) or liquid (oils). List examples of lipids except fats and oils (triglycerides). What is the main material of the plasma membrane? (draw a schematic figure) Describe micelles and liposomes (if needed, draw a figure). The plasma membrane is ___________permeable. Describe how an active transport works (with an example _________ channel). In the Na+/K+ channel, how many ions move across the membrane?
Give the respective structural descriptions and functions of the following: 1. Cell Membrane 2. Nucleus 3. Nucleolus 4. Smooth Endoplasmic Reticulum 5. Rough Endoplasmic Reticulum 6. Nuclear Membrane 7. Mitochondria 8. Golgi Apparatus 9. Cytoskeleton