Why wet mount of moving cells is only performed with no pathogens bacteria? Also, what is the difference between Brownian movement and mobility?

Q: In lab, one of your classmates is confused because their calculations for bacteria in 1.0 gram of…

A: Here we have to introduce the concept of CFU/mL. This means Colony forming unit. This is the…

Q: Mention the different types of adsorption

A: Absorption is the process in which a fluid is dissolved by a liquid or a solid (absorbent).…

Q: Identify the effects of isotonic, hypertonic, and hypotonic effects on a bacterial cell.

A: Hypertonic concentrations have a higher solute concentration and a lower water concentration.…

Q: Which of the following cellular components are important players in maintaining the shape of…

A: The living world is made of various unicellular and multicellular organisms. These organisms are…

Q: Here is an image of a UV-irradiation (wavelength 254nm) experiment performed on a plate of E. coli…

A: Conceptual Introduction UV radiations are known to cause genetic damage and cessation of bacterial…

Q: e draw (by hand, no digital or copy / paste) AND label a cross section of the cellular envelope of…

A: Teichoic acid and teichuronic acid are abundant in the cell walls of gram-positive bacteria. They…

Q: What is the ideal tonicity of sheep’s blood? Why is hypertonic environment dangerous to plant cell?…

A: INTRODUCTION In comparing two solutions of unequal solute concentration, the solution with the…

Q: The principle of Grams staining based on the cell wall composition of bacterial cell. Justify the…

A: Gram stain divides the bacteria into two major categories Gram positive bacteria and Gram Negative…

Q: What cell process is responsible for the effect shown in Figure 8-5? Carrier Broteins Concentration…

A: ANSWER - B. facilitated difussion

Q: In the experiment performed by Messelson and Stahl, bacterial cells grown in 1N-containing growth…

A: Watson and Crick proposed the semi-conservative model for the replication of DNA. Later, this was…

Q: Carrot slices placed in 0.2M salt solution for several hours becomes flaccid (limp). Carrot slices…

A: Tonicity is the relative concentration of solutes dissolved in solution which determine the…

Q: Bacterial cells communicate with each other via   Question 2 options:   cell junctions…

A: Cell to cell communication means when a cell either a unicellular organism or cells in aggregate…

Q: Which complexes are involved in respirasome formation?

A: Respirasome is the most important part of oxidative phosphorylation, which is involved in the…

Q: Membrane proteins that connect the cytoskeleton to the extracellular matrix: Select one: a.…

A: Membrane proteins are the integral proteins that span the whole length of the cell membrane. They…

Q: What would happen to your check cells if they were extracted in anything other than isotonic…

A: As the name suggests the isotonic solution have a solute concentration same as that of the cell.…

Q: Multiple cells from the same species were isolated, the relative cohesion protein content for each…

A: Cohesin holds the sister chromatids together along their entire length, from the S phase until the…

Q: Gram-negative bacteria are generally more resistant to antibiotics than Gram-positive bacteria. What…

A: Gram positive and gram negative bacteria has some structures in common whereas some structure differ…

Q: What must occur prior to vesicle fusion with its target membrane? Explain the effect on vesicle…

A: A vesicle's ability to fuse with the cell membrane is aided by a collection of membrane-bound…

Q: What two fluorescent proteins would be least appropriate to use to visualize co-localization of two…

A: Introduction: In fluorescence microscopy, the specimen itself serves as the source of light. The…

Q: Answer these questions. 1. What is the actual magnification of Cell X? 2. How has magnification of…

A: The microscope is an instrument used to see microscopic organisms or objects which cannot be…

Q: For any antibiotic compounds that don’t appear to inhibit translation of proteins from the ribosome,…

A: Antibiotics that target translation interfere with the ribosome's assembly or processing.

Q: operties of integral membrane proteins can be studied by 1)Atomic force microscopy…

A: The plasma membrane contains integral membrane proteins that are permanently embedded. They serve a…

Q: If bacteria are nonmotile, what can be inferred? Question 3 options: Mimimal number…

A: The flagellum is a motility organelle that allows for movement and chemotaxis. A corkscrew-shaped…

Q: How does FtsZ find the cell midpoint of a rod-shaped cell?

A: Step 1 Filamenting temperature-sensitive mutant Z (FtsZ) is a protein encrypted by the ftsZ gene. It…

Q: How does a rod-shaped bacterial cell differ morphologically if its MreB function is disrupted?

A: MreB protein is similar to actin protein of eukaryotes. It helps in determination of cell shape and…

Q: Considering prokaryotic flagella, how does the structure of the flagella influence the specific…

A: Flagella is the primary organ of prokaryotic locomotion. It guides prokaryotes in direction in…

Q: hen transpeptidation is inhibited by beta-lactam antibiotics, bacteria can still synthesize…

A: The transpeptidation reaction in bacteria occurs in two steps, the first is the formation of a…

Q: in flow cytometry, when cells labeled with fluorescent molecules pass through the focused laser…

A:

Q: Describe the two phenomena that give rise to the diversity of adhesion molecules such as cadherins.…

A: Introduction:- Animal cells use integrins as their primary receptors for binding to the…

Q: Here is an image of a UV-irradiation (wavelength 254nm) experiment performed on a plate of E. coli…

A: UV light at 254 nanometers is used as a sterilization method in medical environments, labs,…

Q: Assume that you counted 67 plaques on a bacterial plate where 0.1ml of a 10-5 dilution of phage was…

A: A dilution: It can be defined as a method of addition of more solvent to a solution of a definite…

Q: Carrot sticks that are immersed in fresh water for several hours become stiff. Similar carrot sticks…

A: Hypertonic solution is a  solution that contains more dissolved particles, while hypotonic solution…

Q: Here is an image of a UV- irradiation (wavelength experiment 254nm) rformed on a plate of E. coli…

A: Introduction: UV radiations result in the termination of bacterial growth by causing genetic damage.…

Q: In which solution did potato cell intracellular fuild reach equilibruim with the solution?

A: * During potato experiment we can see the potato may shrink and may swell and may be in no change it…

Q: What distinguishes Acid-Fast bacteria in terms of cell wall / coating and other characteristics?…

A: Acid-fast bacteria It is the acid-fast bacilli. These are the bacterial group that has the…

Q: why do we used Living cell microsope for?

A: Microscope is an instrument that is used to observe objects that are too small to be seen by our…

Q: Which of the followings is filament-bundling proteins? O Capz O alpha-actinin and fimbrin O thymosin…

A: Proteins are the building blocks of life. Proteins are made up of amino acids. Amino acids when they…

Q: Name the phases of bacterial growth in which cells are the most   Heterogeneous- Homogeneous-…

A: BACTERIAL GROWTH:- Bacteria when transferred to a known medium, the population undergoes a…

Q: Describe what is happening on the bacterial cells growing on the stuffed chicken during the…

A: The bacterial cell cycle includes the replication of DNA and the division of cellular components…

Q: does the rate of diffusion correspond with the molecular weight of the dye?

A: The rate of diffusion correspond with the molecular weight of the dye...

Q: Bacterial cells, which in general have dimensions lying between 1-4 µm, are resolved only with…

A: Magnification in microscope is the ability to produce an image of an object at larger or smaller…

Q: Which organelle is isolated at the slowest speed on a centrifuge? Which organelle is isolated last…

A: Isolation of cell organelles can be done by centrifugation method as in the subcellular…

Q: What is the term for the long tail on a bacteria cell which can propel it through its environment?

A: flagellum, plural flagella, hairlike structure that acts primarily as an organelle of locomotion in…

Q: Besides autoinducer synthesis, what intracellular moleculepromotes biofilm formation in many…

A: Autoinducers are produced by the bacterial cells as signaling molecules that act in response to…

Q: commonly used to stain cytoplasm granules blue

A: On the basis of staining the microbes can also be distinguished as gram-positive and gram-negative…

Q: Which of the following is the result of membrane attack complex? Select one: Cell lysis Cell…

A: The complement system is part of the body’s immune system.  The complement system consists of…

Q: Propose an experiment that would distinguish pore-mediated diffusion (e.g.,by gramicidin) from…

A: Valinomycin and gramicidin both are ionophores that facilitate the transport of ions across the…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.