Ch 4 review question n answers graded A+ 2023 passed

Ch 4 reviewWhen subcellular components from disrupted cells are separated using centrifugation, the primary factor that determines whether a specific cellular component remains in the liquid solution or ends up in the pellet is the relative size and weight of the component. Submit Which of the following correctly describes the pathway taken by a protein destined for secretion from an animal cell? rough ER → transport vesicle → Golgi → transport vesicle → plasma membrane Which of the following will be found in nearly all eukaryotic cells? chloroplast capsule cell wall mitochondria nucleoid mitochondria Which of the following produces and modifies polysaccharides that will be secreted? Golgi apparatus lysosome peroxisome mitochondrion golgi apparatus Which of the following statements correctly describes a function of the Golgi apparatus? detoxification of toxins protein modification and sorting assembly of ribosomal subunits synthesis of cytoplasmic proteins protein modification and sorting In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and combine the hydrogen with oxygen molecules to generate hydrogen peroxide. The chemical reactions involved in respiration in prokaryotic and eukaryotic cells are virtually identical. In eukaryotic cells, ATP is synthesized primarily on the inner membrane of the mitochondria. In light of the endosymbiont theory for the evolutionary origin of mitochondria, where is most ATP synthesis likely to occur in prokaryotic cells? on the plasma membrane Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen? peroxisome Thylakoids, DNA, and ribosomes are all components found in what? chloroplasts Plasmodesmata in plant cells are most similar in function to which structure in animal cells? gap junctions The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells? smooth ER Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids? smooth endoplasmic reticulum Tay-Sachs disease is a human genetic abnormality that results in cells accumulating very large, complex, undigested lipids. Which cellular organelle must be defective in this condition? the lysosome Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. In animal cells, which of the following organelles contains these hydrolytic enzymes? lysosomes