<p>A tertiary</p>
<p>Good job! Tertiary structure controls the function of a protein.</p>
<p>Name factors that restrict cell size.</p>
<p>Surface area to volume ratio restricts cell size because the cells need to be able to absorb enough resources to power themselves.</p>
<p>Does anyone have any recommendations on what topics I should tackle first?</p>
<p>Starting next week, I’m probably going to be getting a good chunk of time back (~3-4 hours – my research class ends next week!), so I’m trying to figure what areas I should invest that time in studying. </p>
<p>So far, we covered Biochemistry/Cell/Ecology Unit and competed the Gas Exchange/Digestive/Nervous System chapter in Campbells. We didn’t cover Plants (and probably won’t be), but I feel like I have an okay grasp on plants (did a research study last year w/ plants - I learned a lot and also used information from Campbell/Reece).</p>
<p>Any ideas?</p>
<p>
</p>
<p>In addition to prismatic’s response, genome-to-volume relationship also limits cell size since the structures within a cell can only adequately maintain the metabolic processes of a finite volume.</p>
<p>
</p>
<p>Plants, Animal Structure and Function, and Ecology compose about one-third of the test.</p>
<p>[ul] [li]All of the following is true of meiosis EXCEPT[/li][list]<a href=“A”></a> Crossover occurs during prophase I
<a href=“B”></a> There is no replication of chromosomes between meiosis I and meiosis II
<a href=“C”></a> In plants, spindle fibers are attached to the centriole
<a href=“D”></a> Synapsis occurs during prophase I
<a href=“E”>*</a> The longest phase is prophase[/ul][/list]</p>
<p>Almost 100% sure its C since plants don’t have centrioles (i think)</p>
<p>Yep, you’re correct :). It certainly helps to know which organelles are specific to what.</p>
<p>
</p>
<p>Hey. Mifine, wouldn’t you want to stay in intro biology because you will have such a strong fonudation that the class will likely be very easy and result in an easy A? It will boost your GPA and will complete one semester of Biology out of two for medical school requirements.</p>
<p>I would actually prefer to bypass introductory-level classes. The material may not be as challenging, but the grading procedures are much more stringent. I realize that curves in introductory science and math courses are often centered anywhere between a C+ and B+, depending on the college, which basically means that half will receive some grade above while half will receive a grade somewhere below. Also, many individuals with equally strong foundations will have the same strategy. In addition, those learning the material for the first time may be just as motivated and capable of attaining exceptional grades. </p>
<p>Typically, advanced courses are easier to obtain better quality grades, even despite the greater difficulty of the concepts. Moreover, I believe I would find the advanced courses to be more intellectually stimulating than simply passing through reiterations of previously learned material. But, of course, it may depend on a university’s curriculum, particularly if placing into more advanced courses places one at a selective disadvantage. At Harvard, for instance, many with exceptional pre-college preparations in the sciences are often encouraged to enroll in Life Sciences 1.</p>
<p>Where did glycolysis originate?</p>
<p>Also could someone explain the differences between the types of phosphorylation</p>
<p>
</p>
<p>The cytoplasm; the Krebs Cycle and electron transport chain (the other features of aerobic respiration) occur in the mitochondria.</p>
<p>
</p>
<p>Substrate-level phosphorylation is basically the enzymatic transfer of an inorganic phosphate molecule to ADP (via the enzyme kinase). This method generates ATP during glycolysis. However, it is not as efficient as oxidative phosphorylation.</p>
<p>Ninety percent of the ATP generated in cellular respiration occurs through oxidative phosphorylation in the process of chemiosmosis. NAD and FAD lose protons, creating a proton gradient across mitochondrial compartments, facilitating the phosphorylation of ADP into ATP.</p>
<p>[ul] [li] Most energy during cell respiration is harvested during[/li][list] <a href=“A”></a> The Krebs cycle
<a href=“B”></a> Oxidative phosphorylation
<a href=“C”></a> Glycolysis
<a href=“D”></a> Anaerobic respiration
<a href=“E”>*</a> Fermentation [/ul][/list]</p>
<p>[ul] [li] The ATP produced during fermentation is generated by which of the following[/li][list] <a href=“A”></a> The electron transport chain
<a href=“B”></a> Substrate level phosphorylation
<a href=“C”></a> The Krebs cycle
<a href=“D”></a> Chemiosmosis
<a href=“E”>*</a> The citric acid cycle[/ul][/list]</p>
<p>[ul] [li] In addition to ATP, what is produced during glycolysis?[/li][list] <a href=“A”></a> Pyruvate and NADH
<a href=“B”></a> CO2 and H2O
<a href=“C”></a> CO2 and ethyl alcohol
<a href=“D”></a> CO2 and NADH
<a href=“E”>*</a> H2O and ethyl alcohol [/ul][/list]</p>
<p>B Oxidative phosphorylation
B Substrate level phosphorylation
A Pyruvate and NADH</p>
<p>Anyone considering picking up the new REA Crash Course for Bio? </p>
<p>I heard the REA Crash Course for APUSH is great, anyone know if Bio is any good?</p>