Biology homework three assignements Drawiings need to be on seperate piece of paper from the typed answers so I can trace .. I cant draw

Simple Evolution paper 1 page instructions are downloaded and two home work assignements also scanned all drawings need to be on a seperate piece of paper with the number next to it… 

Bl 101 Fall2013 First Writing Assignment

DUE Friday October 4 in class. lt may also be submitied electronically via email, but it must be
received by Friday.

Asqignment: Write a paper that describes your current understanding and opinion of the theory of
evolution,

The writing prompts you should use are:

Evolution is…. (ln otherwords, define’evolution,,)

Evolution works by… (What are the mechanisms that cause species to change over time?)

The proper role of evolution in modern biology is… (How do you feel about the evidence for evolulion,
and its place in science and education?)

@-olhergsestions vou MAY consider:
Which (if any) organisms are subject to evolution?
lf you do not “believ_e” in evolution, explain wf ich aspects of evolutionary biology have been proven

incorrect? Or – which aspects of evolutionary theory do you Oisigree riitnZ
What role did Charles Danruin play in developing ouicurreni understandiig of evotution? lf Darwin had

never published his findings, what would be our cunent understanding of evolution?
!9 lhere any scientific controversy about evolution? lf there is, what is the natire of the debate?
Why is there any debate in the U.S. about the teaching of evolution in science classes?

ls this a scientific or social question? What is your opinion?
Does evolutionary theory have any applications in medicine, agriculture, or resource management?

Format: The paper should require about two or three tvped pages, with double-spacing, and
reasonable font size_(no larger than 12) and margins (about one incn). NO COVER pieg, AND NO
ESSAy COVERS, Put your name in upper right hanci corner of first iage. ML* :\rrtA
Rules: This is based on your own curent knowledge and opinions. Therefore, the only rule is that you
may use no outside resources (no texts, no bibles, no googling, and no \Mkipedial). you may, howlver,
discuss the topic with classmates or others.

lf ltou hecome desperate, and are unable to express any knowledge, you may access the text or
othersources, but please be conse

7nd exptain-why you ieiied taio so, and cteartyexplain what information you obtained, and cite tie reference.
Purpose: Everyone has heard of evolution, and everyone has an opinion about the theory, The
purpose oJ this assignment is foryou to verbatize what vou do or do not know about the idLa, and how
you feel about it’ It also provides me with an opportuniflo understand your perspective and where you
are starting the course. .llost importantly, it is an opporiunity for you to firactte tnl Oimcun job of
applying complex scienlific terms into a coherent explanation,

SCiCg: .The paper is worth 30 points. The grading will be based solely on completion and clarity.
This includes proofreading and spell checking. poirits wilt be oeouctei for lateness, spelting errors,
llgomplete or run-on se_ntences, poor grammar, anffiHE use of outside sources. No polNTsWLLBEDEDUcTEDforhavingmisconceptionsaboutevotutionarytheoryo’it”aL1lil’-

SAVE A COPY OF THIS PAPER. WE WILL REVISIT THE TOPIC DURING THE TERM!

HOMEWORK ASSIGNMENT: DUE tN LAB TUESDAY Oct. 22. (Same time will be avaitable
in lab to complete the assignment if neeessary.)

10 Points possible.

1. Why are cells so small? (Or, how does the ratio of surface area to volume limit the maximum
size of cells?)

2. A. Draw an animal cell and label all of the structures that are visible in a light microscope (or
visible in a figurative diagram).

B. Draw a plant cell, as above.

3. what pfiysical structures are distinct between plant and animalcells?

4. ln lecture, we began to diagram the uses of specific types of molecules in cells. Make a
figurative diagram, and use icons to represent proteins of various kinds, and where they
would be found in cells; and do the same for lipids, sugars and other carbohydrates, lipids,
and nucleic acids.

5. \rVhat are the chemical and physicaldifferences between prokaryotic cells @acteria) and
eukaryotic cells?

Bi 101 Homework 3 Chapters 4-7 Fall 2013 DUE in class Friday Nov. 1
20 Points possible

1. Use a diagram of the endomembrane system to explain how a new protein may be
constructed, modified, and exported from the cell. (See your lecture notes from 10121 and
14123, and Figure 4.15 of text.)

2. Draw a generalized diagram of an enzyme, and label the active site and an allosteric sitp.
Explain the role of each of these sites, and explain in your own words how enzymes\
*ork. (See Figures 5.10 and 5.15.) \

3. Draw a graph of energy (y-axis) vs. time (x-axis) for an exergonic reaction (shown in figure
5.11). Clearly show the energy of activation, without an enzyme(or catalyst) and with an
enzyme.

4. Draw a cell membrane. lnclude generalized types of membrane proteins, as depicted in
figure 5.20.

5. Draw diagrams to explain what happens to a cellwhen it is placed in a hypertonic solution, a
hypotonic,solution, and an isotonic solution. Explain how the direction of movement of
water is involved in the cellular effects. (See Figure 5.23.)

6. Draw and explain the mechanism of the calcium pump, and the sodium-potassium pump.
(See figures 5.25 and 5.26.) Why are these called’active transporters”?

7. Diagram the process of receptor-mediated endocytosis, as well as the process of exocytosis.
(Figure 5.27 shows both of these.) How are these processes related to the activities of
the endomembrane system (question # 1, above).

8. (Chapter 6, figure 6.4) Explain the setup and results of Engelman’s classic experiment.
Based on the results, what colors of light should be most efficient at stimulating
photosynthesis in most plants?

9. See “Overview of Photosynthesis” in Section 6.4. \r/hat is the general summary chemical
equation for photosynthesis? Explain (in your own words!), how the light-dependent and
light-independent reactions have distinct roles in photosynthesis. (lt will be helpful to
read the summary “take-home messages” at the bottom of pages 105, 107, and 109.)

10. See “Overview of Carbohydrate Breakdown Pathways”, section 7 .2, andexamine figure
7.3. \I/hat is the overall summary equation for aerobic respiration? What are the three
stages of respiration, where in the cell do they occur, and what are the key products of
each?

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