Dichotomous Key Cells & Viruses- Post Lab questions and photos

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Coastal Alabama Community College - Bay Minette *

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104

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Biology

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Dec 6, 2023

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docx

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Name: _______________ Post-Questions and Photos for the Dichotomous Key Cells & Viruses Lab Attention: These questions will be answered from your Dichotomous Key Cells & Viruses Manuel. 1. What is the primary function of the cell membrane? To separate the interior of all cells from the outside enviroment. 2. What is the primary function of centrioles? To generate the microtubules needed for flagella or cillia 3. What is the primary function of the Golgi apparatus? It packages proteins and sends them to their eventual destinations 4. Which cell component functions to digest foreign materials and unwanted organelles in the cytoplasm? Lysosmomes 5. Which component is part of all cells? a. lysosome b. nucleus c. cell membrane d. endoplasmic reticulum e. Golgi apparatus 6. Which component belongs to viruses, not cells? a. genetic material b. ribosome c. cytoplasm d. nucleus e. capsid 7. Which of the following groups does NOT consist of eukaryotes? a. Chlorobionta b. Eubacteria c. Protista d. Metazoa 8. Which term is used for a typical rod-shaped bacterial cell? Bacilli 9. Which term is used for a spherical bacterial cell? cocci 10. Some eukaryotic cells move by the restructuring of microfilaments. This enables the cells to send out long projections of the cytoplasm covered in cell membrane. What are these projections called?

pseudopodia 11. Name a tool for identifying items based on a series of choices between descriptors, which are usually presented in pairs? Dichotomous key 12. A prokaryote has a Gram-positive cell wall, a basic cell membrane, is rod shaped, and has multiple flagella. Referring to the Prokaryote Dichotomous Key from your lab manual, what is the identity of this organism? 13. A prokaryote has a Gram-negative cell wall and a basic cell membrane, is spiral shaped, and has two polar flagella. Referring to the Prokaryote Dichotomous Key from your lab manual, what is the identity of this organism? Spirllum volutans 14. A eukaryote has a spherical shape, lacks a cell wall, and has vacuoles, chloroplasts, and multiple flagella. Referring to the Eukaryote Dichotomous Key in your lab manual, what is the identity of this cell? 15. A virus has a genome comprised of double-stranded, non-segmented RNA. The capsid, which is polyhedral in shape, lacks an envelope. Referring to the Virus Dichotomous Key in your lab manual, what is the identity of this virus? Activity 1 Photo 1 Insert the photo or scan of your prokaryotic cell drawing from Activity 1. The following should be indicated in this photo:  cell membrane type  circular DNA  ribosomes  flagellum (if applicable) Photo 2 Insert the photo or scan of your eukaryotic cell drawing from Activity 1. The following should be indicated in this photo:  double-stranded DNA inside a nuclear membrane  ribosomes  mitochondria

 endoplasmic reticulum  lysosomes  Golgi apparatus  vesicles  optional internal organelles  means of locomotion if applicable Photo 3 Insert the photo or scan of your virus drawing from Activity 1. The following should be indicated in this photo:  capsid shape  DNA or RNA, if it is single stranded or double stranded, and the replication direction 1. Based on your drawings, which have the most complex structure: eukaryotes, prokaryotes, or viruses? Which have the simplest structure? Activity 2 Enter your dichotomous key here.

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