Bio 61 question
Some proteins within a cell can be viewed with the human eye. an electron microscope. a light microscope. a magnifying glass. a dissecting microscope.
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Chloroplasts and mitochondria are similar in that they both contain DNA. are involved in protein production for the cell. are involved in cellular waste processing. are membranous sacs involved in storage. are involved in helping to maintain cell shape.
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Plant cells are connected to one another by plasmodesmata fimbriae centrioles cytoskeleton pili
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Which of the following allows eukaryotic cells and their organelles to move? the cytoskeleton the endomembrane system chloroplasts the plasma membrane the nucleus
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Without gap junctions in certain tissues, cells would not be able to communicate with each other. fluids may leak out past the barrier the junction would create. the tissues would not be able to expand and stretch without damage. nutrients would not be able to be passed from cell to cell. cells would not be able to migrate during their development.
1
Which of the following is the correct sequence through the endomembrane system for material that is destined to be secreted from the cell? rough endoplasmic reticulum - Golgi apparatus - plasma membrane Golgi apparatus - ribosome - plasma membrane nucleus - smooth endoplasmic reticulum - Golgi apparatus Golgi apparatus - smooth endoplasmic reticulum - plasma membrane smooth endoplasmic reticulum - plasma membrane - Golgi apparatus - ribosome
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Both plants and animals need mitochondria to produce glucose. produce ATP. produce lipids. break down proteins. manufacture phospholipids.
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In which way are vesicles different from vacuoles? they are not made from membranes they are smaller vesicles are more specialized than vacuoles they are most often involved in storage they are primarily found in plant cells
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Receptor proteins allow a cell to transport water into the cytoplasm. bind to signal proteins from other parts of the body. allow the passage of H+ ions into the cell. perform metabolic reactions. divide.
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Which of the following is a correct match of a molecule and the location where it is principally used? DNA - cytoplasm mRNA - nucleus and cytoplasm rRNA - nucleus glucose - lysosome lipids - ribosome
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Which of the following structures would NOT be found in a prokaryotic cell? cell membrane nucleus ribosomes flagella chromosomes
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Below is a diagram of a bacterium. What part of the bacterial cell does Y represent? capsule flagella nucleoid cell wall fimbriae
3
The stack of thylakoids labeled "A" in this figure is called chloroplast. thylakoid space. granum. cristae. stroma.
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Which organelle modifies the contents within vesicles and then repackages them for export? smooth ER rough ER Golgi apparatus ribosomes plasma membrane
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Chromosomes are made from condensed vesicles. expanded ribosomes. expanded polysaccharides. condensed chromatin. cell recognition proteins.
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Which of the following is a correct match? ribosomes - lipid synthesis Golgi apparatus - production of cellular ATP mitochondria - protein alteration and packaging lysosomes - cellular digestion smooth endoplasmic reticulum - storage of water
4
Which of the following is a possible function of the extracellular matrix in animal cells? enables cells to migrate along intracellular fibers permits communication between the extracellular matrix and the cells creates a variety of consistencies for cells to live in, from flexible cartilage to solid bone helps cells have flexibility All of the answers are possible functions of the extracellular matrix.
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Which of the following is a type of intracellular protein? actin filaments myosin microtubules kinesin All of the above are types of intracellular proteins.
5