Biology 211 Homework#1
The basic units of life on earth CELL (The example shown here is a cardiac cell) TISSUE (The example shown here is a cardiac tissue) ORGAN (The example shown here is a heart) Complex living things (organisms) like plants and animals are made up of characteristic structures. Individual cells contain genetic information (DNA) that allows them to reproduce themselves and be the kind of cells they are genetically programmed to be (this varies enormously depending on the complexity of each organism). Tissues are groups of cells that arrange themselves to create structures. Organs are made of different types of tissues, which together work to create structure and function for the organism. Most of the living things on earth (in terms of numbers) consist of a single cell, and do not make complex cellular structures. But all living things have an enormous amount in common in terms of how cells work to reproduce and survive. Therefore, they can be fairly easily organized in terms of what they have in common in their DNA, which tells a story about the evolutionary relationship of all living things. 1) There are hundreds of thousands of different types of living things on this planet. Each of these living things has been categorized so that it belongs in one of three… (BOLD the correct answer) (a) domains 2) (b) genera (plural of “genus”) (c) kingdoms (d) species (a) List the three domains of life. (b) Two of the three domains you listed in part a are comprised almost entirely of relatively simple single-celled organisms. What are these two domains? (c) Consider the domain you did NOT list in part b. Does this domain include any type of single-celled organisms? (BOLD the correct answer) Yes or No 3) Consider your answer to question #1. (a) In which domain are animals (including humans) classified? (b) In which domain are plants classified? 4) Organisms that are the most related to one another (generally, so related that they may successfully breed with one another) are said to be part of the same… (BOLD the correct answer) (a) domain (b) kingdom (c) species For most of this quarter, we will focus on eukaryotic cells (if you ever take microbiology, that’s where you’ll learn all about prokaryotic cells). The following questions will help you learn some basic things about eukaryotic cells. 5) Animal cells and plant cells are both classified as… (BOLD the correct answer) Prokaryotic OR Eukaryotic 6) Which type of cell has a cell (plasma) membrane? (BOLD the correct answer) Animal cell OR Plant cell OR Both Which type of cell has a plasma membrane and a cell wall? (BOLD the correct answer) Animal cell OR Plant cell OR Both Which type of cell appears to have a sturdier outer covering? (BOLD the correct answer) Animal cell OR Plant cell Which type of cell contains organelles that convert energy from the sun into a form of energy that the cell can use directly? (BOLD the correct answer) Animal cell OR Plant cell OR Both What’s the name of the organelle that can produce sugar (stored chemical energy)? Which type of cell contains mitochondria? (BOLD the correct answer) Animal cell OR Plant cell OR Both Which type of cell contains a central vacuole? (BOLD the correct answer) Animal cell OR Plant cell OR Both 7) The most simple and abundant cells on earth do not have any intracellular membranes or complex intracellular structures. But they contain DNA which codes for their reproduction and survival, and they have cell membranes much like more complex organisms. What is the single cellular structure other than DNA or membranes surrounding the cell, that single celled organisms have in common with more complex organisms? 8) What does symbiotic mean? 9) What does the “Endosymbiotic theory” explain about different types of Eukaryotic cells? 10) Why do you think that Eukarytic cells evolved to surround their DNA with a biological membrane?
| Excellent | Good | Fair | Poor | ||
| Main Posting | 45 (45%) – 50 (50%)
Answers all parts of the discussion question(s) expectations with reflective critical analysis and synthesis of knowledge gained from the course readings for the module and current credible sources.
Supported by at least three current, credible sources.
Written clearly and concisely with no grammatical or spelling errors and fully adheres to current APA manual writing rules and style. |
40 (40%) – 44 (44%)
Responds to the discussion question(s) and is reflective with critical analysis and synthesis of knowledge gained from the course readings for the module.
At least 75% of post has exceptional depth and breadth.
Supported by at least three credible sources.
Written clearly and concisely with one or no grammatical or spelling errors and fully adheres to current APA manual writing rules and style. |
35 (35%) – 39 (39%)
Responds to some of the discussion question(s).
One or two criteria are not addressed or are superficially addressed.
Is somewhat lacking reflection and critical analysis and synthesis.
Somewhat represents knowledge gained from the course readings for the module.
Post is cited with two credible sources.
Written somewhat concisely; may contain more than two spelling or grammatical errors.
Contains some APA formatting errors. |
0 (0%) – 34 (34%)
Does not respond to the discussion question(s) adequately.
Lacks depth or superficially addresses criteria.
Lacks reflection and critical analysis and synthesis.
Does not represent knowledge gained from the course readings for the module.
Contains only one or no credible sources.
Not written clearly or concisely.
Contains more than two spelling or grammatical errors.
Does not adhere to current APA manual writing rules and style. |
|
| Main Post: Timeliness | 10 (10%) – 10 (10%)
Posts main post by day 3. |
0 (0%) – 0 (0%) | 0 (0%) – 0 (0%) | 0 (0%) – 0 (0%)
Does not post by day 3. |
|
| First Response | 17 (17%) – 18 (18%)
Response exhibits synthesis, critical thinking, and application to practice settings.
Responds fully to questions posed by faculty.
Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.
Demonstrates synthesis and understanding of learning objectives.
Communication is professional and respectful to colleagues.
Responses to faculty questions are fully answered, if posed.
Response is effectively written in standard, edited English. |
15 (15%) – 16 (16%)
Response exhibits critical thinking and application to practice settings.
Communication is professional and respectful to colleagues.
Responses to faculty questions are answered, if posed.
Provides clear, concise opinions and ideas that are supported by two or more credible sources.
Response is effectively written in standard, edited English. |
13 (13%) – 14 (14%)
Response is on topic and may have some depth.
Responses posted in the discussion may lack effective professional communication.
Responses to faculty questions are somewhat answered, if posed.
Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited. |
0 (0%) – 12 (12%)
Response may not be on topic and lacks depth.
Responses posted in the discussion lack effective professional communication.
Responses to faculty questions are missing.
No credible sources are cited. |
|
| Second Response | 16 (16%) – 17 (17%)
Response exhibits synthesis, critical thinking, and application to practice settings.
Responds fully to questions posed by faculty.
Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.
Demonstrates synthesis and understanding of learning objectives.
Communication is professional and respectful to colleagues.
Responses to faculty questions are fully answered, if posed.
Response is effectively written in standard, edited English. |
14 (14%) – 15 (15%)
Response exhibits critical thinking and application to practice settings.
Communication is professional and respectful to colleagues.
Responses to faculty questions are answered, if posed.
Provides clear, concise opinions and ideas that are supported by two or more credible sources.
Response is effectively written in standard, edited English. |
12 (12%) – 13 (13%)
Response is on topic and may have some depth.
Responses posted in the discussion may lack effective professional communication.
Responses to faculty questions are somewhat answered, if posed.
Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited. |
0 (0%) – 11 (11%)
Response may not be on topic and lacks depth.
Responses posted in the discussion lack effective professional communication.
Responses to faculty questions are missing.
No credible sources are cited. |
|
| Participation | 5 (5%) – 5 (5%)
Meets requirements for participation by posting on three different days. |
0 (0%) – 0 (0%) | 0 (0%) – 0 (0%) | 0 (0%) – 0 (0%)
Does not meet requirements for participation by posting on 3 different days. |
|
| Total Points: 100 | |||||