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Transcript
Name __________________________________ DR10.1a Bacteria and Archaea _____ 1. How many domains of living things are there? a. one c. three b. two d. four _____ 2. The oldest forms of life on Earth are in the domains a. Bacteria and Archaea. c. Eukarya and Archaea. b. Bacteria and Eukarya. d. Bacteria and Fungi. SOME CHARACTERISTICS OF BACTERIA AND ARCHAEA _____ 3. Bacteria are usually a. rod shaped, spherical, or spiral shaped. b. rod shaped, spherical, or cone shaped. c. rod shaped, pyramidal, or spherical. d. cube shaped, spherical, or spiral shaped. _____ 4. What gives bacteria their shape? a. their size b. their environment c. their color d. their cell wall Match the correct description with the correct term. _____ 5. rod shaped bacteria, with large surface area to take in nutrients _____ 6. long, spiral shaped bacteria, with corkscrew -like flagella _____ 7. spherical, do not dry out as quickly as others a. cocci b. bacilli c. spirilla 8. Hair-like parts that spin to push bacteria through water are called ___________. 9. Single-celled organism l without a nucleus is called a ____________________. 10. Cells with a nucleus are called ______________________. 11. What are three ways that prokaryotes are like eukaryotes? _____________________________________________________________________________ _____________________________________________________________________________ 12. What are three ways that prokaryotes function differently from eukaryotes? _________________________________________________________________ ______________________ ________________________________________________ 13. Asexual reproduction in a single-celled organism by which one cell divides into two single-celled organisms is called ______________________ . 14. What are the four steps of reproduction by binary fission? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 1 Bacteria and Viruses Name __________________________________ 15. A thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions is called a(n) ______________________ 16. What may happen to endospores when hot, cold, or dry conditions improve? _______________________________________________________________ THE DOMAIN BACTERIA _____ 17. Most known prokaryotes are a. archaea. c. fungi. b. protista. d. bacteria. _____ 18. Domain that has more individuals than all other domains combined is a. Fungi. c. Bacteria. b. Archaea. d. Eukarya. _____ 19. Most bacteria are a. consumers. b. producers. c. decomposers. d. scavengers. Match each description with the correct term. a. producers b. decomposers c. consumers _____ 20. bacteria that feed on dead organisms _____ 21. bacteria that eat other organisms or live in their _____ 22. bacteria that use energy from sunlight to make food 23. Producer bacteria with green chlorophyll are called _____________________. 24. What are two effects of pigments found in cyanobacteria? ______________________________________________________________________ ______________________________________________________________________ 25. How do some scientists believe bacteria similar to cyanobacteria helped give rise to the first plants on Earth, billions of years ago? _______________________________________________________________ _______________________________________________________________ THE DOMAIN ARCHAEA Match the description with the correct term. _____ 26. archaea living in ocean vents and hot springs at 60° - 80° C a. salt lovers _____ 27. archaea living in places like the Dead Sea or Great Salt Lake b. methane makers _____ 28. archaea that live in swamps and animal intestines c. heat lovers 29. What kind of environment do archaea prefer? Give two examples. _______________________________________________________________ _______________________________________________________________ 30. What is one difference between the cells of archaea and the cells of bacteria? _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 2 Bacteria and Viruses