V[Choose ] Collagen Coiled-coil of alpha helices Silk fibroin Keratin Triple helical arrangement of polypeptide chains

Q: Which of the followings is not a possible component of extracellular matrix? (LO-K8) Collagen…

A: The extracellular matrix (ECM) is defined as the non-cellular component present within all tissues…

Q: hich of the following statements is true about actin: OActin is translated by free ribosomes O…

A: Actin is known as the thin filament. It is made up of the protein named actin.

Q: Integrins are important in cell crawling because they anchor the leading edge of the cell to the…

A: The cytoskeleton is the web of fibres that makes up eukaryotic, prokaryotic, and archaeal cells. A…

Q: Cleavage of a phosphate bond is needed for de-polymerization of which mature polymer? Neither…

A: The eukaryotic cytoskeleton is composed of microfilaments, microtubules, and intermediate filaments.…

Q: How are plasmodesmata and gap junctions similar? How are they dissimilar? Would you expect a…

A: Plasmodesmata are channels between two adjacent plant cells.These are present in the cell wall of…

Q: 11. Which of the following phospholipids is localized to a greater extent in the outer leaflet of…

A: The distribution of phospholipids in the membrane lipid bilayer is asymmetric, meaning that certain…

Q: 42 43 44

A: ATP stands for Adenosine Triphosphate.  It is made up of adenine, ribose and phosphate.

Q: [Membrane Proteins] Based on the figure provided, What classification best describes G-proteins?…

A: G proteins, generally defined as guanine nucleotide-binding proteins, are a protein family that acts…

Q: On which of the following intracellular locations does clathrin organize a coat and form vesicles?…

A: Introduction :- Membranes that travel between the trans-Golgi network (TGN) and endosomes and those…

Q: Which of the following statements about the membrane bilayer is FALSE?

A: Introduction: Lipids are the constituents of membrane structure and regulate the membrane…

Q: Match the following to their proper description (answers may be used more than once).   Gap…

A: Below are matched with their description:-

Q: Proteins attached to the outer half of the plasma membrane bilayer are usually attached by…

A: Biological macromolecules are those large molecules that are essential to carry out important…

Q: In an integral membrane protein, which of the amino acids below is most likely to be found in the…

A: Biological membranes are predominantly phospholipid bilayers. The 2 surfaces of the membrane…

Q: Many diseases are characterized by fibrosis, which is excess scarring. This scarring is often caused…

A: Fibrosis is also termed fibrotic scarring, is a pathological wound healing in which connective…

Q: The phospholipid bilayer is very solid. True False

A: Introduction  Phospholipids are a class of lipids that make up the basic structure of cell…

Q: All the following processes occur rapidly in the membrane lipid bilayer except (A) Flexing of fatty…

A: The plasma membrane is composed of a lipid bilayer that forms a selectively permeable barrier around…

Q: 6

A: Plasma Membranes are known to have fluidity as explained by the fluid mosaic model. This property is…

Q: Explain what is Filament Structure?

A: The soft tissue-like structure found in the majority of the animals including human beings is known…

Q: Explain the role that cytoskeleton plays in the cellular biomechanics. What are the ( different…

A: The cytoskeleton of the cells the structural support to help in maintaining the cell shape and…

Q: A lipid bilayer was prepared from equal amounts of the following lipids: •…

A: A lipid bilayer act as the outer covering of a cell and its cell organelles. It prevents the free…

Q: Ribosomes can be found on or in which of following: [Select any/all that apply.] smooth endoplasmic…

A: The question is asking us to identify the locations where ribosomes can be found. Ribosomes are…

Q: Intermediate filaments Options: A)  are larger than 10nm in diameter B)  have a hollow core…

A: The complex network of protein filaments found in the cytoplasm of a cell is known as a cell…

Q: There are types of cytoskeleton fiber- intermediate filaments. Tell their structure and/or function.

A: Cytoskeleton is uniquely found in eukaryotic cells. There are three main structural components:…

Q: Protein modifications that involve disulfide bonds occur in the following;(there may be more than…

A: Proteins are the basic building components of our bodies. They are big and complicated…

Q: If you were tasked to make a very rigid lipid bilayer, which of the choices below would be the best…

A: Lipid bilayer It is the membrane made up of two layers of lipid molecules.

Q: What is the rate-limiting step in the formation of an actin filament?     Addition of actin…

A: Cytoskeleton is an intracellular network of protein filament present in the cytoplasm. There are…

Q: fully describe the structure of a phospholipid bilayer as seen in a membranous structure, such as…

A: Lipid, any of a wide range of organic molecules that do not interact significantly with water, such…

Q: The cell skeleton In the cell there are three types of filaments that form the cell skeleton.…

A: Earlier idea of cell was that it was a collection of some cell organelles suspended in cell sap. But…

Q: 34) The RNA that has an anticodon and attaches to a specific amino acid is RNA. 35) T/F Buffers…

A: Note - according to our guidelines we are supposed to answer only one question. RNAs carrying the…

Q: Which of the following are characteristics of both actin filaments and microtubules? Select all that…

A: Actin filaments and tubulins are the subunits of microfilaments and microtubules respectively. They…

Q: ?What is the unique feature of the collagen helix compared to the a helix Hydrophobic interactions a…

A: There are four classes of biological macromolecules: proteins, nucleic acids, lipids,…

Q: Classify each characteristic as describing glycoproteins or proteoglycans. Glycoproteins…

A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…

Q: zation occurs predominantly at the minus (-) ends of microtubules.     Polymerization is favored…

A: Cell biology is study of the cell and how they grow and how they communicate with each other.   Cell…

Q: If a cell increases the activity of its actin severing proteins, will it lead in the short term to…

A: Actin severing proteins are also known as actin depolymerizing proteins. They function in…

Q: Look carefully at the transmembrane proteins shown in Figure 11–29. What can you say about their…

A: An integral membrane protein that stretches to the whole of the cell membrane is called as a…

Q: Can you label the cell structures of the plasma membrane using this picture example please

A: The animal cell is the primary and most basic functional unit in the body of different animals.…

Q: Together with their role in connecting the lateral membranes of adjacent epithelial cells, adherens…

A: Different types of cell junctions are responsible for forming cell to cell attachment. Some cases…

Q: Order following for rate of diffusion through a synthetic lipid bilayer. Explain your order.…

A: Transport across the plasma membrane is a highly regulative process that is dependent on both the…

Q: At temperatures that are much lower than a lipid bilayer's melting point, adding cholesterol will…

A: Cholesterol acts as a fluidity buffer of membranes. This action of cholesterol makes sure that the…

Q: Which of the following can be used to describe both desmosomes and adherens junctions? Select all…

A: The selective cell to cell attachment is mediated by different types of addition molecules that also…

Q: Which of the following statements about the microtubule structure is FALSE? O In a single…

A: Every microtubule comprises two subunits, α-tubulin and β-tubulin, which are the tubulin proteins…

Q: Cardiac muscle cells undergo a great deal of physical stress during contraction in order to pump…

A: All living organisms are made up of cells, which are the most basic unit of life. They are…

Q: An understanding of the structure and function of membrane proteins has lagged behind that of other…

A: Membrane proteins are difficult to crystallize as they have a lipid environment around it. to study…

Q: Which diagram below represents the transmembrane protein whose membrane topology is shown on the…

A: The transmembrane proteins are present in the cell membrane. These are embedded in the membrane and…

Q: Glycoprotein Glycolipid Hydrophilic heads Globular protein Protein channel Integral membrane protein…

A: Fluid mosaic model was given bu Singer and Nicholsen 1n 1972. According to fluid mosaic model a cell…