Microbiology Chapter 8 Flashcards

Algae, protozoa, slime molds.

True

Protozoans move by flagella or cilia; flagella beat back and forth to push against water, similar to a fish's tail.

<p>Pseudopodia are extensions that move forward to attach to a surface and pull the cell in a crawling motion.</p> Signup and view all the answers

<p>Algae are a major part of phytoplankton, producing more O2 than all the Earth's forests, and form the basis for the marine food chain.</p> Signup and view all the answers

<p>Algal cell walls are usually composed of cellulose, agar, and pectin.</p> Signup and view all the answers

<p>Algae use chlorophyll in chloroplasts to absorb sunlight and convert it into chemical energy in the form of ATP.</p> Signup and view all the answers

<p>Protozoans are classified according to their locomotion apparatus; types include flagellates, pseudopods, ciliates, and sporozoites.</p> Signup and view all the answers

<p>Protozoans can be identified microscopically by locomotion apparatus, general shape and size, number of nuclei, and presence of cyst forms.</p> Signup and view all the answers

<p>Cellular slime molds grow as individual cells, while acellular slime molds form a plasmodium, which is a giant cell containing many nuclei.</p> Signup and view all the answers

<p>Acellular slime mold is a mold that forms into a plasmodium.</p> Signup and view all the answers

<p>Algae are often unicellular, can grow in large groups, and are a major part of phytoplankton with cell walls made of cellulose.</p> Signup and view all the answers

<p>Amoebas are protozoans that move by pseudopodia and crawl.</p> Signup and view all the answers

<p>ATP stands for adenosine triphosphate and is the cell's energy storage chemical.</p> Signup and view all the answers

<p>Cellular slime mold is a mold that grows as a group of individual cells.</p> Signup and view all the answers

<p>Chlorophyll is found in algae and uses sunlight to convert carbon dioxide and water into carbohydrates and oxygen.</p> Signup and view all the answers

<p>Chloroplasts are organelles that contain chlorophyll.</p> Signup and view all the answers

<p>Ciliates are protozoans with cilia that beat coordinately to propel food to the oral opening.</p> Signup and view all the answers

<p>A cyst is a dormant protozoan that is more resistant to environmental stresses.</p> Signup and view all the answers

<p>Diatoms are algae that produce a silicon structural matrix that settles to the ocean floor when they die.</p> Signup and view all the answers

<p>Flagellates are protozoans that use flagella for locomotion and food gathering.</p> Signup and view all the answers

<p>Photosynthesis is the process where sunlight energy is used to convert carbon dioxide and water into carbohydrates.</p> Signup and view all the answers

<p>Phytoplankton are free-floating algae that produce more oxygen than all Earth's forests.</p> Signup and view all the answers

<p>A plasmodium is a collection of cells fused together, growing larger as the nuclei divide.</p> Signup and view all the answers

<p>Protists include a broad grouping of eukaryotes other than plants, animals, and fungi.</p> Signup and view all the answers