Lab 1 Report

Questions 43-50 You are investigating the properties of cell membranes using the Fluorescence Recovery After Photobleaching (FRAP) technique. You first label all the membrane proteins on the cell surface uniformly with a green fluorescent dye. At 10 minutes, you photobleach a small area on the cell membrane by shining a beam of strong laser on it (Strong laser permanently destroys the fluorescent molecules in the area). You measure the fluorescence in the photobleached area over time. 10min Time 43. The recovery of fluorescence in the photobleached area is due to the fact that . A. The cell membrane is semi-permeable, allowing proteins to be transported across the membrane. B. The cell membrane is fluid, allowing proteins from adjacent areas to move into the photobleached area. C. Fluorescent molecules are not permanently destroyed by the laser beam. They can spontaneously regain their fluorescence over time. D. New proteins are synthesized in the cell and transported to the cell…

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Biology Questions  Showed in attached picture

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Question 7 A series of mutant strains (a through f) of a particular mold are not able to grow on minimal media unless they are supplemented by one or more of the compounds Q through V as shown below. Strain a b с d e f Q 0 0 + 0 0 + R 0 + + 0 + + Supplements S 0 o 0 0 0 0 T + + + + + + U V 0 + + 0 0 + 0 + + + + + + = growth 0 = no growth Draw a plausible metabolic pathway supported by the data provided in the Table above, showing the position of each metabolic intermediate in the pathway, which step is blocked by each mutant and explain your answer. (8 marks)

Question Completion Status: QUESTION 1 Sodium fluoride (NaF) is a O a. cell nutrient O b. cellular poison O c. type of yeast O d. sugar QUESTION 2

esign Layout References Mailings Revicn A" Aa A AaBbCcDd AaBbCcDd AaBbCcDd AaBbC 00 A D.A- 1 Normal 1 Title 1 No Spac... Heading 1 Subtitle A Select Paragraph Styles Editing Voi you have the necessary permissions to upload the file. Save a Copy Chapter 9-1 What is the correct sequence for the three stages of cellular respiration? P. 222 What is released during cellular respiration that is not a chemical compound? P. 222 3. How many molecules of ATP are released from one molecule of glucose? P. 223 What is the correct balanced equation for cellular respiration? P. 222 What molecules are broken down during cellular respiration to release energy? Page 222 or 223 What are the reactants in the equation for cellular respiration? P. 222 What are the products of cellular respiration? P. 222 1. 2. 4. 5. 6. 7. 6c0 What stage of cellular respiration takes place in the cytoplasm of the cell? P. 222 What is the net gain of ATP from glycolysis? P. 223 10. What is the starting molecule for…

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QUESTION 8 What is the rate-limiting step in the assembly of both microtubules and actin microfilaments that occurs in cells but does not occur in a test tube when purified monomers in the tube together with the appropriate energy source?   A Elongation   B Nucleation   C Treadmilling   D Depolymerization   E Association with binding proteins

question--The dairy industry uses enzymes to breakdown lactose in milk, especially for those who suffer from lactose intolerance.---- if possible answer all (1-7)if not just 4-7 1,Explain in detail the enzymes involved, the reactions catalyzed, and the improvement in the product.  2,Discuss why they are being used – more efficient, higher yields or less waste? 3,What was used before enzymes if anything?  4,Discuss the risks, especially to living systems and to the environment. 5,Discuss the impact of the process on society.  6,The end of your paper should include your opinion or concerns on this bio-application.  7,Provide proper in-text citations in APA formatting

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Question 11 To correctly perform and interpret a proteomic analysis, careful attention of which of the following may be needed proteins' compositions can be influenced by pH, hypoxia, drug treatment, or other environments, which may influence the outcome of an experiment the myriad ways proteins can be processed and modified the large range of protein abundances observed spanning 6 to 10 orders of magnitude in eukaryotes selecting among the numerous PCR protocols for amplifying the naturally observed proteins

Question 9 How many amino acids are found in the polypeptide when the MRNA is translated? MRNA 5 AAUAUGCGGAUGCCCGAA -3 O 4 O 5 O 6 O 7

Question 4How does an autopsy differ from a medico-legal autopsy? Discuss..

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Remaining Time: 43 minutes, 54 seconds. * Question Completion Status: QUESTION 1 One difference between adult and embryonic stem cells is O a. Adult stem cells can become a limited number of cell types while embryonic stem cells can become any cell type b. Adult stem cells are found in embryos while embryonic stem cells are found i adults Oc. There is no difference between embryonic stem cells and adult stem cells Od. Adult stem cells can become any cell type while embryonic stem cells can become a limited number of cell types Ob. Ligase Oc. Ribosomes Od. Reverse transcriptase QUESTION 2 Which of the following is most necessary to make a cDNA library? a. ddNTPs QUESTION 3 1kb = bp For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph v Arial E # $ 3 ۳ 4 E Click Save and Submit to save and submit. Click Save All Answers to save all answers. R Q Search or enter website name **** Gi" ق sex Uakeupfer WORD.COMIS olearn.okan.edu.tr % ^ 50 0 6 1 T 6. MacBook Pro Y 10pt & 7 V…

Question: Why does the term expired mean that a patient has died?

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Question 13 What is OSHA and what is its purpose? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt

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QUESTION 9 DOK 4 Imagine there is a second gene that requires two positive transcription factors for transcription. How would you expect the rate of transcription of these genes to compare to the rate of transcription of Gene 1 in the activity? Explain. Click to answer SAVE DRAFT SUBMIT Question 9 9:06 PM 4) ENG 3/24/2021

QUESTION 10 The direction that most accurately describes secretory protein movement through the endomembrane system would be O A. Golgi apparatus»smooth endoplasmic reticulum lysosome→vesicles-plasma membrane OB. plasmid plasma membrane nuclear envelope smooth endoplasmic reticulum vesicles O C. rough endoplasmic reticulumvesicles Golgi apparatus vesicles →plasma membrane OD. nuclear envelope vesicles Golgi apparatus rough endoplasmic reticulum»plasma QUESTION 11 Click Save Cnd Submit to save and submit. Click Save All Ansuvers to save all answers. ENG ) P 19

Question 23 options: A newly discovered colon cancer cell line is established from a tumour sample derived from a patient with colon cancer. To understand more about this cell line and how it is different from normal cells, some experiments on the cell cycle of the colon cancer line are carried out. The cells are examined under the phase contrast microscope and the length of mitosis was found to be 90 minutes. Next, a DNA marker is used to find out how long DNA synthesis takes and indicates that DNA synthesis takes 3 hours. There is a gap between DNA synthesis and mitosis of 3.5 hours and a gap between mitosis and DNA synthesis of 4 hours. What is the total length of the cell cycle? _____ hours?

Question 1 For import into the nucleus, proteins require: Ran-GTP active transport Pex5 an NES Question 2 The nuclear envelope contains nuclear pore complexes (NPCs) that allow small molecules to pass but excludes macromolecules larger than 40 kDa True False

QUESTION 10 Why do cells use endocytosis instead of facilitated diffusion to transport large molecules down their concentration gradient? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px II 101

ann Question 2 2 pts You have isolated a gram-positive bacterium with low G + C content from unpasteurized milk. It infected a pregnant woman, and now you are worried that her child will be stillborn. What bacterium is it? O Mycobacterium O Clostridium O Anabaena Listeria monocytogenes Next No new data to save. Last checked at 1:04pm Submit Quiz End Insert Dele Home F12 F10 F11 F9 FB F6 F7 F4 F5 Ba & $4 7 8 9. 4 T H. J K G M V PriSc Alt 立

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question: A pneumothorax occurs when the chest wall is punctured and air moves down its pressure gradient from the pleural cavity to the external environment, resulting in the collapse of the lung as the air leaves the thoracic cavity.   answer should clearly state whether or not the statement is correct and then concisely explain why. the answer should be like a few sentences and address all of the points in the statement.   Here is an example: Both transmembrane carrier proteins and transmembrane channel proteins can mediate active transport of a hydrophilic solute through a cell plasma membrane. This statement is incorrect. Movement of a solute through a channel protein is always passive, whereas carrier-mediated transmembrane transport can be either passive or active. A transmembrane channel protein creates a pore through the membrane allowing for simple diffusion of a hydrophilic solute down a concentration gradient through the membrane. In contrast, transmembrane carrier…

Passage 1 (Questions 1-4) Human immunodeficiency virus 1 (HIV-1) protease inhibitors have been successful at lowering HIV-1 levels and blocking the onset of acquired immune deficiency syndrome (AIDS). However, because HIV-1 mutants are developing resistance to current protease inhibitors, new inhibitors such as Compound 1 (molar mass: 483.5 g.mol-¹) are being tested. Compound 1 Compound 1 has been shown to inhibit HIV-1 protease with K₁ = 60.3 μM (Table 1). K; is the dissociation constant for the enzyme-bound inhibitor, which is either El or ESI, depending on the type of inhibitor. The peptide substrate for HIV-1 protease is IRKILFLDG. HIV-1 protease hydrolyzes only the peptide bond after leucine and before phenylalanine. Table 1 Kinetic Parameters of HIV-1 Protease with and without Compound 1 Compound 1 (μM) K₁ KM Kcat Км (mm) (¹) (mM-¹ s¹) (HM) 00.149 1.678 0.250 0.832 0.126 0.151 60.3 0.149 60.3 0.430 0.064 Note: HIV-1 protease follows Michaelis-Menten kinetics. 0 60.0 120 H A…

Question 2.