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Question 1: Describe the difference between the functions of the iris diaphragm and the condenser? Question 2: Why do animal cells lack cell walls and chloroplasts?
Which part of the nucleotide stores the genetic information? a) Nitrogen base b) Deoxyribose c) Phosphate group d) Ribose
What process is responsible creating distinct sets of proteins in skin cell compared to brain cell? a) Base Titration b) Gene Expression c) DNA Replication d) DNA Mutation
Question 1: The structure of proteins are built and maintained by different kinds of bonds. List three such bonds used in protein structure. Question 2: What is the end result of DNA replication?
Question 1: What are some ethical issues that may arise related to health promotion and attempting to change people's behavior? Question 2: Find the pH values for at least five liquids that people rou
What information might a researcher gain about the p53 protein by examining where the conserved threonine residues lie?
Question 1: How does the extracellular K+ concentration affect resting membrane potential? Question 2: A large quanity (>100nM) of K+ are added to the extracellular fluid of a neuron. The neuron
Why is it important that the pH scale is logarithmic? Also why would someone look at the differences between Eukaryotic cells and also look at pH in the same lab?
Question 1: Design an experiment that would provide you with information about the eukaryotic nucleosome structure. Question 2: Why can't one use antibodies to detect Z-DNA in vivo?
Question 1: Why might DNA need a set of repair genes? Question 2: Why might sequence-specific binding of proteins be more common in the major groove than in the minor groove of DNA?
Question 1: How are pmf's related to the production of ATP. Question 2: Draw the structures of an adenine and its counterpart that are base paired in a stem of tRNA. Draw them as they are bound by h
An axon, an action potential is travelling down it. Freeze frame right when the AP is in the center, the site where you injected current, and consider that the sodium ions rushing in are analogous t
A bacterium is isolated and found to have carboxysomes, sulfur granules, and gas vesicles. just under the cell well are a row of phycobilisomes. the organism forms phb during the day but they disapp
An ecologist wants to know if diversity in a forest system is likely to decrease when an invasive species is introduced. This invasive species is a fast-growing annual plant that grows on oak trees
Why does the major groove of DNA have higher sequence specific binding than the minor groove? Give a detailed answer at least 2 paragraphs.
What residue of topisomerase enzymes is important for interacting with the phosphodiester bond? A) Serine B) Leucine C) Threonine D) Arginine E) Tyrosine F) Lysine G) Phenylalanine
When the membrane of an axon depolarizes to threshold, voltage-gated sodium channels open. Explain how this creates a positive feedback loop. Now, explain why this feedback loop doesn't continue for
Briefly describe how liverworts undergo gas exchange. Contrast that process with the process seen in mosses" I am assuming that mosses means the Lycophyta Club-Mosses not the Bryophyta Mosses becaus
Question 1: What are antagonistic pairings? What are the advantages of this organization of control systems? Question 2: Compare and contrast negative feedback and positive feedback. Which type of c
Question 1: Compare and contrast different types of membrane receptors and their signal transduction pathways. Question 2: What are the primary functions of the endocrine systems?
Question 1: Compare and contrast receptor- up regulation and down regulation. how do these phenomena help maintain homeostasis? Question 2: Compare and contrast inter acellular and transmembrane recep
Question 1: Are amines hydrophilic or hydrophobic messengers? how does this affect their release, transport, and signaling? Question 2: Why do some cells respond to a chemical messenger while other ce
Question 1: How can some people use over thousands of percentage points above the net primary productivity? Question 2: Compare and contrast hydrophilic and hydrophobic messengers in terms of the th
Using the Law of Succession (as described in Darwins Origins of Species) what would one hypothesize to be the location of human origins?
Question 1: Briefly explain three processes that contribute to the high fidelity of DNA replication in E. coli. Question 2: Explain why it is surprising that both strands of DNA in this novel organism