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PART I: SHORT ANSWER Directions: Please answer each of the following questions. Please ensure that your responses are at least 3 to 5 sentences in length. 1. Describe how the concept of the cell has changed over the past 200 years. 2. On the basis of surface area-to-volume ratio, why do cells tend to remain small?
3. List the membranous organelles of a eukaryotic cell, and describe the function of each. 4. What will happen if an animal is placed in a hypertonic solution? 5. Describe three of the six methods that allow the exchange of molecules between cells and their surroundings. 6. What is the difference between a catalyst and an enzyme? 7. Describe the sequence of events in an enzyme-controlled reaction. 8. How do these three types of molecules relate to one another (enzymes, coenzymes, and vitamins)? 9. Describe what happens during electron transport and what this has to do with a protein pump. 10. What is enzyme competition and why is it important to all cells? PART II: ESSAY Directions: Write a 1 to 2 page, double-spaced paper in 12 pt. font in response to the following question. Find one article using AAU's LIRN (library) to use as support. Please use APA format. Please visit the Academic Resource Center for an effective guide on how use LIRN and for concise APA guidelines. Prokaryotic and Eukaryotic Cells Compare and contrast the differences between prokaryotic and eukaryotic cells. Explain what organisms have prokaryotic and eukaryotic cells, what makes each of these cells unique, and why they are very important in our environment.
q. the trait for medium-size leaves in iris is determined by the genetic condition pp. plants with large leaves are pp.
Hydrogen peroxide is toxic to cells, yet is a common byproduct of the reactions the occur inside the body. How can this compound by changed to become non-toxic?
A protein was purified to homogene-ity. Determination of the mass by gel- filtration chromatography yields 60 kd. Chromatography in the presence of 6 M urea yields a 30- kd species.
q1. how does the increase in estrogen level correspond to the thickness of uterine lining endometrium? clarify why this
Think about the presence of hemoglobin in the catheter bag. What symptom would this loss of hemoglobin most strongly and immediately be linked to in the patient?
Using the base pairing of rna to dna, the genetic code tablerelating to amino acids to mRNA codons, and the one letterabbreviations for the amino acids, decode the following geneticmessage?
Develop a hypothesis as to why there was an increase in the proportion of the short-stemmed dandelions within the population.
What is the best way to study the concept of cellular respiration (Glycolysis, Citric Acid Cycle, and Electron Transport Chain)?
How does the formation of strobili in Equisetum comparewith that in Lycopodium and Selaginella? Why does an enzyme capable of hydrolyzing glu-alpha-1,4-glu bonds not have the ability to hydrolyze beta bonds?
The organism may well potentially be a crab, a shrimp, a barnacle, or a bivalve. The presence of which structures would allow for the most certain identification of the organism.
which part of aerobic respiration is oxygen actually used
What will happen to the age structure of the population? What about birthrates?
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