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| 1 | |
Which of the following terms best describes the first primitive eukaryotes? |
| | A) | multicellular |
| | B) | single-celled |
| | C) | photosynthetic |
| | D) | specialized |
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| 2 | |
Endosymbiosis proposes that |
| | A) | eukaryotic cells arose when a much larger prokaryotic cell engulfed smaller bacterial cells that eventually developed into organelles. |
| | B) | two separate organisms can live in a symbiotic commensal relationship as long as one is a prokaryotic cell. |
| | C) | two separate organisms can live in a symbiotic parasitic relationship as long as one is a prokaryotic cell. |
| | D) | organelles formed in eukaryotic cells by invagination of cell membranes and insertion of DNA into the membrane-enclosed areas. |
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| 3 | |
Identify which of the following is theorized to have developed and can be explained by the endosymbiotic theory. |
| | A) | vacuoles |
| | B) | Golgi apparatus |
| | C) | mitochondria |
| | D) | cell wall |
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| 4 | |
Eukaryotic flagella whip back and forth rather than rotating. This is because within a eukaryotic flagellum we typically find |
| | A) | a 9+2 arrangement of microtubules which slide past each other during movement. |
| | B) | a 7+2 arrangement of microfilaments which slide along the external filaments. |
| | C) | a 5+4 arrangement of cellulose fibers which twist back and forth. |
| | D) | 9 pairs of microtubules which surround the interior of the cell. |
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| 5 | |
Eukaryotic cells have several structural attributes which separate them from prokaryotes. Which of these attributes are found in eukaryotes, but NOT found in prokaryotes? |
| | A) | peptidoglycan walls, cell membrane, nucleoid |
| | B) | larger size, organelles, nuclear membrane |
| | C) | ribosomes, chromosomes, cytoplasm |
| | D) | enzymes, chromatin, DNA |
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| 6 | |
Before mitosis, chromosomes are visible only as |
| | A) | microtubules. |
| | B) | matrix. |
| | C) | chromatin. |
| | D) | spindle fibers. |
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| 7 | |
Where is the site for protein modification in a eukaryotic cell? |
| | A) | inside the nucleus |
| | B) | in the chloroplasts |
| | C) | between adjacent ribosomes |
| | D) | in the Golgi complex |
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| 8 | |
Lysosomes are vesicles that |
| | A) | originate from the rough endoplasmic reticulum. |
| | B) | are involved in intracellular digestion of food particles. |
| | C) | contain fluids or solid particles to be digested, excreted, or stored. |
| | D) | contain fats and glycogen. |
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| 9 | |
The bulk of the energy required by the eukaryotic cell is generated by the mitochondria. The mitrochondrion consists of cristae that |
| | A) | form a smooth, continuous outer membrane surrounding the entire organelle. |
| | B) | form a complex fluid called a matrix outside the organelle. |
| | C) | are elaborate folds on the inner membrane which hold the enzymes and electron carriers of aerobic respiration. |
| | D) | are circular strands of DNA involved in producing the enzymes needed for anaerobic respiration. |
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| 10 | |
Chloroplasts convert the solar energy from sunlight into |
| | A) | heat energy. |
| | B) | chemical energy. |
| | C) | mechanical energy. |
| | D) | electrical energy. |
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| 11 | |
Ribosomes are found free within the cytoplasm as well as bound to rough endoplasmic reticulum. They are the sites of |
| | A) | photosynthesis. |
| | B) | digestion. |
| | C) | protein synthesis. |
| | D) | energy production. |
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| 12 | |
Identify the structure that does NOT have a double membrane protecting it. |
| | A) | nucleus |
| | B) | chloroplast |
| | C) | mitochondria |
| | D) | ribosome |
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| 13 | |
The Kingdom Fungi, or Myceteae, consist of macroscopic fungi and microscopic fungi. Identify the microscopic fungi from the following list: |
| | A) | mushrooms |
| | B) | puffballs |
| | C) | kelp |
| | D) | yeast |
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| 14 | |
Most fungi are _____________, and get their food via _____________. |
| | A) | photosynthetic, solar energy. |
| | B) | autotrophic, chemical energy. |
| | C) | saprobes, extracellular digestion. |
| | D) | heterotrophic, ingestion. |
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| 15 | |
Which of the following is NOT one of the four major divisions among terrestrial fungi? |
| | A) | zygomycota |
| | B) | ascomycota |
| | C) | basidiomycota |
| | D) | mastigophora |
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| 16 | |
Filamentous fungi |
| | A) | are photosynthetic & found in marine environments. |
| | B) | produce buds during sexual reproduction. |
| | C) | have hyphae that make up mycelia. |
| | D) | all of the above are true. |
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| 17 | |
Mycoses are |
| | A) | toxins produced by fungi. |
| | B) | fungal infections. |
| | C) | the group of fungi which are primarily filamentous. |
| | D) | allergic responses to fungal material. |
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| 18 | |
Kingdom Protista includes |
| | A) | archaea & monera. |
| | B) | kelp & fungi. |
| | C) | parasitic worms. |
| | D) | algae & protozoans. |
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| 19 | |
Protozoa are primarily |
| | A) | free-living. |
| | B) | pathogenic. |
| | C) | parasitic. |
| | D) | photosynthetic. |
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| 20 | |
Protist survival is limited mainly by |
| | A) | host availability. |
| | B) | availability of moisture. |
| | C) | speed at which they can bud off new cells. |
| | D) | trophozoite size. |
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| 21 | |
Protozoans are often able to survive changing environmental conditions by forming |
| | A) | trophozoites. |
| | B) | eggs. |
| | C) | spores. |
| | D) | cysts. |
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| 22 | |
Algae can cause health problems because |
| | A) | they are parasitic. |
| | B) | they inhabit animal tissues preferentially. |
| | C) | they may produce toxins. |
| | D) | all of the above are true. |
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| 23 | |
Helminths are |
| | A) | fungi. |
| | B) | protozoans. |
| | C) | algae. |
| | D) | animals. |
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| 24 | |
Organisms that are unicellular, colonial, filamentous, and photosynthetic would include the |
| | A) | fungi. |
| | B) | protozoans. |
| | C) | helminths. |
| | D) | algae. |
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| 25 | |
Helminth adulthood and mating occur in the |
| | A) | intermediate host. |
| | B) | transport host. |
| | C) | definitive host. |
| | D) | tertiary host. |
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| 26 | |
Evidence from paleontology indicates that the first eukaryotic cells appeared on the earth approximately 2 billion years ago. |
| | A) | True |
| | B) | False |
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| 27 | |
The biologist responsible for the formulation of the endosymbiotic theory is Dr. Lynn Margulis. |
| | A) | True |
| | B) | False |
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| 28 | |
The cell walls of fungi and algae are rigid and provide structural support and shape, and are similar to prokaryotic cell walls in chemical composition. |
| | A) | True |
| | B) | False |
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| 29 | |
Most fungi can only reproduce sexually via spores. |
| | A) | True |
| | B) | False |
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| 30 | |
Red tide is the result of an elaborate "bloom" of protozoans. |
| | A) | True |
| | B) | False |
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| 31 | |
Pfiesteria piscicida is a toxic algal form that is associated with neurological disease symptoms. |
| | A) | True |
| | B) | False |
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| 32 | |
Helminths are identified in the laboratory by microscopic examination of body fluids and excretions containing the eggs and larvae. |
| | A) | True |
| | B) | False |
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