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A: Answer is a.) coccus.
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A bacterium is_______ (choose all that apply).
a. an organism c. an animal
b. single-celled d. a eukaryote
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- The presence of a membrane-enclosed nucleus is a characteristic of ________. a. prokaryotic cells b. eukaryotic cells c. living organisms d. bacteriaSelect a statement that is not true about bacteria A. Some bacteria cause human disease B. Some bacteria are autotrophs C. Bacteria can be found within rocks kilometers below the Earth’s surface D. All organisms with cells containing a membrane-enclosed nucleus and organelles are eukaryotes, whereas all organisms with cells lacking a membrane-enclosed nucleus and organelles are bacteriaA multicellular organism is: a. A group of differentiated eukaryotic cells that work together to support the function of an organism b. A colony of single-celled organisms O c. The simplest form of life on Earth O d. Only contains prokaryotic cells
- The presence of a membrane-enclosed nucleus is a characteristic of ________. a. prokaryotic cells b. eukaryotic cells c. all cells d. virusesProkaryotes depend on ________ to obtain somematerials and to get rid of wastes.a. ribosomesb. flagellac. cell divisiond. diffusionWhen utilizing the microscope to identify the cells in an unknown sample, you notice that the cells all contain a nucleus. Based on this info you eliminate the following from your list of potential organisms: A. Bacterium B. Archaea C. Eukaryote D. A and B E. None of the above
- The surface-to-volume ratio _______. a. does not apply to prokaryotic cells. b. constrains cell size. c. is part of the cell bodyYou discover a new bacterium. Its cell envelope shows high concentrations of phosphatidylethanolmine and another type of phospholipid that is associated with long polysaccharide chains of unusual sugars. This organism is likely? A. Gram-positive B. Gram-negative O C. Archaea D. Eukaryote E. a or bFinding out how a bacterial cell duplicate itself is considered: a. A Discovery b. An invention c. An innovation d. A technology e. A patent
- Which of the following statement about the bacterial cell wall is INCORRECT? a. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids. b. Gram-positive cells have more peptidoglycan in theircell walls than Gram-negative cells. c. Gram-negative cells have a membrane both inside andoutside their cell walls. d. The cell wall establishes a bacterium’s shape as a coccus,bacillus, or spirillum.Select the letter of the choice that best completes the statement. Organisms that can only live inside the cells are calleda. flora.b. bacteria.c. viruses.d. fungi.Which of these do all prokaryotes and eukaryotes share?a. nuclear envelopeb. cell wallsc. organellesd. plasma membrane