1) The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that a) plant cells are capable of having a much higher surface-to-volume ratio than animal cells. b)  plant cells have a much more highly convoluted (folded) plasma membrane than animal cells c)  plant cells contain a large vacuole that reduces the volume of the cytoplasm d) the basic functions of plant cells are very different from those of animal cells 2) Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules a) lipids b) proteins c) steroids d) glucose 3) The nuclear lamina is an array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely consequence a) the loss of all nuclear function  b) the inability of the cell to withstand enzymatic digestion  c) a change in the shape of the nucleusCell wall  d) failure of chromosomes to carry genetic information e) inability of the nucleus to keep out destructive chemicals 4) Under which of the following conditions would you expect to find a cell with a predominance of free ribosomes a) a cell that is secreting proteins b) a cell that is producing cytoplasmic enzymes c) a cell that is constructing its cell wall or extracellular matrix d) a cell that is digesting food particles e) a cell that is enlarging its vacuole 5) a cell that is enlarging its vacuoleWhich type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids a) ribosome b) lysosome c) smooth endoplasmic reticulum d) mitochondrion e) contractile vacuole 6) The Golgi apparatus has a polarity or sidedness to its structure and function. Which of the following statements correctly describes this polarity a) Transport vesicles fuse with one side of the Golgi and leave from the opposite side b) Proteins in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other c) Lipids in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other d) Soluble proteins in the cisternae (interior) of the Golgi may be sorted and modified as they move from one side of the Golgi to the other e) All of the above correctly describe polar characteristics of the Golgi function 7) The fact that the outer membrane of the nuclear envelope has bound ribosomes allows one to most reliably conclude that a) at least some of the proteins that function in the nuclear envelope are made by the ribosomes on the nuclear envelope b) the nuclear envelope is not part of the endomembrane system c) the nuclear envelope is physically continuous with the endoplasmic reticulum d) small vesicles from the Golgi fuse with the nuclear envelope e) nuclear pore complexes contain proteins 8) In animal cells, hydrolytic enzymes are packaged to prevent general destruction of cellular components. Which of the following organelles functions in this compartmentalization a) chloroplast b) lysosome c) central vacuole d) peroxisome e) glyoxysome 9) 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 a) rough ER b) smooth ER c) Golgi apparatus d) Nuclear envelope e) Transport vesicle 10) Which of the following is a compartment that often takes up much of the volume of a plant cell a) lysosome b) vacuole c) mitochondrion d) Golgi apparatus e) peroxisome 11) Which of the following contains its own DNA and ribosomes a) lysosome b) vacuole c) mitochondrion d) Golgi apparatus e) peroxisome 12) Which of the following contains enzymes that transfer hydrogen from various substrates to oxygen a) lysosome b) vacuole c) mitochondrion d) Golgi apparatus e) peroxisome 13) A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. It could be a cell from a) a bacterium b) an animal, but not a plant. c) a plant, but not an animal d) a plant or an animal e) any kind of organism. 14) Motor proteins provide for molecular motion in cells by interacting with what types of cellular structures a) sites of energy production in cellular respiration b) membrane proteins c) ribosomes d) cytoskeletons e) cellulose fibers in the cell wall 15) What is the first cell function to be affected if the Golgi apparatus is damaged a) The cell will not be able to export proteins b) The cell will not be able to store water c) The cell will not be able to produce energy. d) The cell will not be able to move or divide.

LO2 Cell organelles

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