Term
| What is the only way a virus is like an organism? |
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Definition
| The only way in which viruses are like organisms is that they can multiply. |
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Term
| What is the structure of a virus? |
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Definition
| All viruses have two basic parts: a protein coat that protects the virus and an inner core made of genetic material. |
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Term
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Definition
| Once inside a cell, a virus’s genetic material takes over many of the cell’s functions. It instructs the cell to produce the virus’s proteins and genetic material. These proteins and genetic material then assemble into new viruses. |
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Term
| How can you treat a viral disease? |
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Definition
| Resting, drinking plenty of fluids, and eating well-balanced meals may be all you can do while you recover from a viral disease. |
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Term
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Definition
a tiny, nonliving particle that invades and then multiplies inside a living cell. Viruses are not cells.
a living thing that provides a source of energy for a virus or an organism. |
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Term
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Definition
| a living thing that provides a source of energy for a virus or an organism |
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Term
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Definition
| a virus that infects bacteria. In fact, its name means “bacteria eater.” |
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Term
| what happens when the bacteria is in a cell? |
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Definition
| Once inside a cell, a virus’s genetic material takes over many of the cell’s functions. It instructs the cell to produce the virus’s proteins and genetic material. These proteins and genetic material then assemble into new viruses. |
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Term
| what are the two kinds of viruses? |
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Definition
| active viruses and hidden viruses |
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Term
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Definition
| Single-celled organisms that lack a nucleus; prokaryotes |
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Term
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Definition
| a long, whiplike structure that helps a cell to move |
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Term
| what is necessary to a bacteria? |
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Definition
| Bacteria must have a source of food and a way of breaking down the food to release its energy. |
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Term
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Definition
| a process of reproduction in which one cell divide to make two identical cells |
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Term
| what is Asexual reproduction? |
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Definition
| a reproductive process that involves only one parent and produces offspring that are identical to the parent. |
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Term
| what is sexual reproduction? |
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Definition
| a process of reproduction in which two parents combine their genetic material to produce a new organism, which differs from both parents |
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Term
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Definition
| it is when one bacterium transfers some genetic material to another bacterium through a threadlike bridge. After the transfer, the cells separate. |
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Term
| what are the roles of bacteria in nature? |
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Definition
| food production, environmental recycling, and environmental cleanup. |
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Term
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Definition
| eukaryotes that cannot be classified as animals, plants, or fungi |
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Term
| what are the three groups of protists? |
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Definition
| Human-like protists protists, plant-like protists, and fungus-like. |
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Term
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Definition
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Term
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Definition
| A “false foot” or temporary bulge of cytoplasm used for feeding and movement in some protozoans. |
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Term
| what is the use for a contract vacuole? |
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Definition
| Small particles, like those of water, pass easily through the cell membrane into the cytoplasm. If excess water were to build up inside the cell, the amoeba would burst. Fortunately, amoebas have a contractile vacuole (kun trak til vak yoo ohl), a structure that collects the extra water and then expels it from the cell. |
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Term
| where do protozoans live? |
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Definition
| in the deep ocean and inside of people |
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Term
| What are the four types of protozoans? |
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Definition
| protozoans with pseudopods, with Cilia,with flagella, and protozoans that are parasites. |
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Term
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Definition
Fungi are eukaryotes that have cell walls, are heterotrophs that feed by absorbing their food, and use spores to reproduce |
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Term
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Definition
| the branching, threadlike tubes that make up the bodies of multicellular fungi |
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Term
| how does fungi obtain food? |
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Definition
| Fungi absorb food through hyphae that grow into a food source. First, the fungus grows hyphae into the food source. Then digestive chemicals ooze from the hyphae into the food. The chemicals break down the food into small substances that can be absorbed by the hyphae |
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Term
| How does fungi reproduce? |
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Definition
| Fungi usually reproduce by making spores. The lightweight spores are surrounded by a protective covering and can be carried easily through air or water to new sites |
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Term
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Definition
| A form of asexual reproduction of yeast in which a new cell grows out of the body of a parent. |
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Term
| what is the role of fungi in nature? |
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Definition
| Many fungi provide foods for people. Fungi play important roles as decomposers and recyclers on Earth. Some fungi cause disease while others fight disease. Still other fungi live in symbiosis with other organisms. |
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Term
| are viruses heterotroughs or autotrophs? |
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Definition
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