Two wavelengths of light strike a living cell, one has a wavelength of 12 nm, and one has a wavelength 700 nm. Based on the electromagnetic spectrum, which one would be considered more dangerous to the cell? Why?
Q: What is the most damaging wavelength of this light? What type of damage does it cause cells? How…
A: Sterilization is a technique of complete eradication and killing of microbes like bacteria ,…
Q: Which of the following molecules would be able to passively diffuse into or out of the cell?…
A: The cell membrane is a structure which protects the cell and acts as a barrier and transports the…
Q: Due to the work of the sodium-potassium pump, the charge on the outside of the cell is… A. The…
A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…
Q: Define the following terms:a. supersecondary structureb. protomerc. phosphoproteind. denaturatione.…
A: Proteins are the polymers of amino acids in which each amino acid is joined by a peptide bond. Based…
Q: why should the light be dimmed when looking at living cells
A: The question asks about the reason for dimmed or reduced light while looking at the living cells.A…
Q: The green grass in the lawn covered with coconut shell for one week and turned yellow green in…
A: For the survival, plants need to perform photosynthesis which required sunlight, water and carbon…
Q: o get an idea of the different sizes of various cellular components, do the following calculations:…
A: Protein is a macronutrient that is essential to building muscle mass. It is found throughout the…
Q: Which of the following ions must be kept to very low concentrations within the cell cytoplasm in…
A: Nucleic acids are the biological macromolecules that are the core part of the genome. Nucleic acids…
Q: A cell has an internal concentration of sodium chloride equal to 9 g/L. A sodium chloride (NaCl)…
A: A cell is a cytoplasmic mass that is outwardly attached by a cell membrane. Cells are the smallest…
Q: What is the mode of action of sulfonamides
A: Mode of action of different antibiotics means they inhibit the growth of bacteria either by…
Q: Scientists let rice blast fungal infection cells attach to and attempt to penetrate six different…
A: Osmosis is defined as the movement of solvent particles from a region of higher solute concentration…
Q: he solution outside the cell is 65% water and 35% solute, while inside the cell is 55% water and 45%…
A: The hypertonic solution contains more solute and less water in comparison to other solution.In…
Q: What would happen to a potato cell if it were placed in the following solutions? Explain your answer…
A: Cells always tend to maintain a state of equilibrium in the conditions prevailing inside and outside…
Q: Which of the following statements best describes the movement of molecules in a cell if its…
A: The plasma membrane of the cell is a semipermeable membrane that controls the movement of different…
Q: Practitioners of naturopathic medicine often use “essential oils” such as lavender oil. (Note that…
A: Plasma membrane acts as a barrier for the passage of molecules. It acts as a semipermeable membrane…
Q: SELECT ALL THAT APPLY An atomic force microscope can be used to measure Group of answer choices…
A: Atomic force microscopy (AFM) is a very high-resolution microscopy technique that used to scan…
Q: Using a microscope, Quinlin notices a small green organelle inside a cell. Which of the following…
A: Green organelle inside the cell must be chlorophyll. The main function of chlorophyll is to perform…
Q: One protein made by these cells is (myelin, actin, myosin) that is essential in neurological…
A: The nervous system comprises the brain, spinal cord, and nerves. It transmits electrochemical…
Q: Which of the following cellular features are common to all classes of cells? A. Presence of genetic…
A: Cell is the smallest unit that can live on its own and that makes up all living organisms and the…
Q: the length of Cell X using the ruler in Microsoft Word. Assuming the actual length to be 3 um,…
A: Introduction Bacteria are single-celled microorganisms with a simple structure. Bacteria can be…
Q: That a single microtubule can accommodate motors moving in both directions, or not? That all of…
A: Microtubules are the major constituents of cytoskeleton that are found in all the eukaryotic cells.…
Q: What is the importance of acids and bases in our daily activities? State examples. What is the pH of…
A: Acids are the substances that donates H+ ions and have pH range between 1-6 Bases are those which…
Q: In a small jar with a half water inside with liquid dishwashing soap. I dropped a small glob of used…
A: Colloidal solution: A homogeneous solution formed by the mixture of one non-crystalline substances…
Q: What part of this molecule will bind to free cations in cellular cytoplasm? Please indicate the…
A: Within the cell different macromolecules at present that includes DNA, RNA, proteins,…
Q: Which of the following is true about phospholipid bilayers? The interior of the layer is highly…
A: Cell membrane is the outer covering of the cells. So, the Cell is surrounded by cell membrane also…
Q: How can water, oxygen, and carbon dioxide move freely through the phospholipid bilayer, but larger…
A: To answer this question first we must know a little bit about the structure of the plasma membrane.…
Q: What is the size of the nucleus in micrometers? What is the size of the cell in micrometers?
A: BASIC INFORMATION CELL It is considered as the basic unit of life Every organism is made up of cell…
Q: How do you explain the difference in the apparent shapes and positions of the nuclei in different…
A: The cell nucleus is the most important organelle within the eukaryotic cells, and perhaps the most…
Q: Biological molecules in the cell are (colored/colorless). Most stains used are basic stains and…
A: The cells in your body are commonly lackluster. This is on the grounds that the particles that make…
Q: Which among the following statements is correct? O lon-exchange chromatography is dependent on the…
A: Introduction: Chromatography is an analytical technique for the separation of different dissolved…
Q: f you start with 100 mM Na+ and 100 mM K+ outside the liposomes, and 100 mM Na+ and 100 mM K+ inside…
A: Introduction- Sodium potassium pump is a P-type plasma membrane pump in which with the help of ATP…
Q: What is the correct order of permeability for the following four substances across a pure…
A: Plasma membrane is a semi-permeable membrane that allows only selective molecules to pass through…
Q: What substance is often applied on a slide specimen of cells or tissues that help enhance the…
A: Microscope is an instrument that is used to magnify small objects like cellular organelles, spores,…
Q: What would happen to a potato cell if it were placed in the following solutions? Explain your answer…
A: The tendency of an external solution to promote osmosis mediated entry or exit of water molecules…
Q: Which molecule would you predict moves through a lipid bilayer most rapidly without the help of a…
A: Only a few number of molecules can cross lipid membrane without the help of transport proteins.…
Q: Which of the following ions must be kept to very low concentrations within the cell cytoplasm in…
A: Nucleic acids such as DNA and RNA are hereditary material as they store and transmit the genetic…
Q: Why methylene blue, a basic dye, can be used to stain cytoplasm, a basic structure? Why cytoplasm is…
A: Stains or dyes are the chemical compounds contains the groups that imparts color and their chemical…
Q: Which of the following compounds can diffuse through the lipid bilayer of a cell membrane? Select…
A: All the cells have a membrane surrounding their organelles which allow support, protection and…
Q: Determine the following for positive staining. (a) dye, (b) charge of the chromophore/colored ion,…
A: A) basic dyes are used to paint the specimen and the background colour is bright B) the coloured…
Q: If plant cells were placed in a hypotonic solution would they burst like the blood cells? Why?
A: Animal cell does not have cell wall as plant cells have rigid cell wall around cytoplasm. In…
Q: If the potato cells were hypotonic to the surrounding solution, the surrounding solution itself…
A: * Hypotonic solution means the solution will have lower concentration of solutes than water. *…
Q: Which of the following types of molecules can never move across the phospholipid bilayer of a cell…
A: Fluid mosaic model proposed by singer and Nicholson in 1972 says that the cell membrane structure…
Q: Cyanide binds with at least one of the molecules involved in the production of ATP. Following…
A: Cyanide is a chemical substance with the CN group in its name. The cyano group is made up of a…
Q: Which among the following statements is correct? Group of answer choices Both statements are…
A: Proteins are the linear heteropolymers of twenty standard amino acids attached together via peptide…
Q: Which of the following cell components is not visible using a compound light microscope? a. Nuclei…
A: Both the plant cells and animal cells have some unique characteristics. The presence of plastids and…
Q: Which way does the ion move and why? Na+ F=23100 cal/V*mol Vm = -60mV R =2cal/mol*K T = 300K…
A: A membrane made up of a lipid bilayer with proteins incorporated in it surrounds all animal cells.…
Q: When a visual pigment absorbs photons of light, it changes its molecular shape and at the same time…
A: Introduction: Rhodopsin is the pigment present in the retina of an eye.Iodopsin is the…
Two wavelengths of light strike a living cell, one has a wavelength of 12 nm, and one has a wavelength 700 nm. Based on the
(note: 1 m = 109 nm)
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- Anthocyanins are another type of plant pigment that are purple or red. Say you run a chromatography experiment using the same setup as you did in this lab, and you find that anthocyanins do not move from the line of origin. Assuming the solvent traveled the same distance as in your experiment (D in Table 1 above), what is the Rf value of anthocyanin?A chemistry student at GGC synthesized a new sulfonamide (S7) drug to help treat malaria. Using a spectrophotometer the student observed that S7 converts to a colorless molecule in the presence of malaria parasite called Plasmodium falciparum. To study the rate of reaction, the student recorded the absorbance/amount of S7 at a wavelength of 570 nm. The results are summarized in the table below: Time (s) Absorbance/Amount of S7 0.80 0.63 10 0.50 15 0.40 20 О.32 25 0.25 30 0.20 Determine the half-life of S7. Include units in your answer MacBook Air 000 000 F8 80 F7What is the frequency of green light that has a wavelength of 531 nm? (c = 3.00 x 10⁸ m/s)
- Assume that you have an “X” solution that you do not know its concentration. But you have other X solutions with known concentrations and you know X solution absorbs maximum light at 575 nm. To calculate the unknown solution concentration, you have done some spectrophotometric measurements and obtained data given below. Prepare a standard curve by using the absorbance of known concentrations (Hint: you can learn how to prepare a standard curve by using Excell from youtube). Calculate the concentration of unknown.This is about Beer-Lambert’s Law and UV-vis Spectroscopy: 1) How does a solution interact with light?2) How are absorbance and transmittance related? 3) How do you make an absorbance spectrum?You are an art teacher who needs to explain to your students what different types of materials are inside magic markers. Use the diagram below to color, label, and write a short paragraph to explain how the chromatography process of separation works. (You can draw and take a picture or you can do this one using this Desmos Link: Desmos to complete this one.) BUTTTT let me know if you choose
- A Transmission Electron Microscopy image of Gold nanoparticles is shown below. Name a physical or chemical property that changes when gold is prepared as nanoparticles below 50 nm? Explain why. 20 nmAssume that you list the following types of electromagnetic radiation in order of increasing wavelength: () the gamma rays produced by a radioactive nuclide used in medical imaging: (ii) radiation from an FM radio station at 93.1 MHz on the dial; (iii) a radio signal from an AM radio station at 680 kHz on the dial; (iv) the yellow light from sodium vapor streetlights; (v) the red light of a light-emitting diode. Which one would be the second? Lütfen birini seçin: O a 680 kHz AM radio waves O b. the red light O c the yellow light O d. 93.1 MHz FM radio waves O e the gamma raysIn Experiment 7, Isolation of Citrus Oils, the compounds isolated were the monoterpene compounds alpha-pinene, beta-pinene, limonene, myrcene and gamma-terpinene. The citrus oils were analyzed using gas chromatography, which separates compounds based on polarity and boiling point. Column chromatography and thin layer chromatography work on similar separation principles as gas chromatography, but rely only on polarity of compounds and solvents for separation. Explain why neither column chromatography nor thin layer chromatography would be appropriate separation methods for the terpenes isolated in Experiment 7. Answer:
- Consider a bi convex lens with radius of curvatures |R1| = 30 mm and |R2| = 180 mm, ct = 5 mm and glass is N-BK7. This is used as camera lens in order to image a man who is at 1 km away from the camera. We want to resolve 10 cm on his body. Assume that λ = 550 nm. Using zemax, determine the MTF value for the resolution of R = 80 lp / mm in image plane which is placed at paraxial focus. (Hint: First, find the diameter of the lens) Which one: a.32.1 % b.28.7 % c.12.3 % d.58.5 % e.46.8 % f.57.2 % g.20.9 % h.15.6 %The standard curve to determine the amount of betacyanin is shown below. You extracted a red pigment from a beet disc (the mass of a disc is 2 g) using 10 ml of 20% ethanol solution. You measured absorbance of the solution above the beet disc every minute for a total time of 20 minutes. The increase in absorbance was linear during a period of time from 1 min to 10 min. The absorbance at 10 min was 0.8. Calculate the amount of betacyanin extracted from 1g of a beet tissue per minute. Explain your calculations. You can use Excel or a calculator.What wavelength is most suitable for quantitative analyses for an analyte exhibiting the UV-Vis Spectrum shown below (which has an interfering analyte with the spectrum shown in a dashed line)? Explain why? 1.0r A B F 0.75- C 0.50 E 0.25 350 400 450 500 550 600 650 Wavelength, nm Figure 3-19 Choice of experimental wavelength. Solid line: measured species. Dashed line: interfering species. See text for delails. Absorbance
