Q: A cell has a mutation that makes it unable to appropriately synthesize proteins. Which function of…
A: The Ribosome is a ribonucleoprotein machine responsible for protein synthesis. They are protein…
Q: type of junctions p O 1. tight junctions O 2. plasmodesmata O 3. adhering junctions
A: Cell junction are the points through which cells contact with each other. There are five types of…
Q: Skeletal muscle is composed of very hard workingcells. Which organelles do you expect to find in…
A: The skeletal muscle is formed of a bundle of striped or striated cylindrical fibers and comprises…
Q: Il taken from the mouth of a frog to an g, and it produces a few cell types. You n say that the…
A: Multipotent cells can develop into more than one cell type, but are more limited than pluripotent…
Q: What is bulk transport of molecules exported out of a cell called? O Diffusion Exocytosis O…
A: HI! Thank you for your question.As you have posted multiple questions and have not mentioned which…
Q: Which cell structures cause the outer surface of endoplasmic reticulum to appear rough? O Proteins O…
A: Endoplasmic reticulum is an intracellular compartment which is bounded by single membrane. ER is a…
Q: This organelle takes glucose and turns it in to energy (ATP) O ribosomes O mitochondria O cell wall…
A: Eukaryotic cell is characterized by having membrane bound nucleus and cell organelles like…
Q: These cells are human cheek epithelial cells. VWhat is their approximate cell size? Field Diameter =…
A: The average or approximate size of human cells are 100 micrometers or 0.1 millimeters.
Q: A couple is told by their doctor that they cannot have children because the sperm of the male lack…
A: Sperm is the male gamete help in sexual reproduction. Sperm has three part head, mid piece and tail.…
Q: Intercellular junctions allowing communication between adjacent cells. A. adhering junctions B.…
A: Question: Intercellular junctions that allow communications between adjacent cells Answer: Gap…
Q: Heart muscle works hard and therefore consumes much ATP. Which organelles would you expect to be…
A: Heart muscle or cardiac muscle signifies the thick middle layer of heart, which is known as…
Q: Cells migrate by interacting with the extracellular matrix via the binding of membrane integrin with…
A: INTRODUCTION Fibronectin It is a glycoprotein of the extracellular matrix having high molecular…
Q: Which is/are true of epithelial cells?a. They can only move uncharged molecules across their…
A: The cells which form membranes, cover/line body surfaces are the epithelial cells. They are arranged…
Q: The nuclear lamina is made up of: O a. Actin and myosin O b. Collagen O c. Motor proteins O d.…
A: A cytoskeleton has three kinds of filaments the microtubule, the intermediate, and the actin…
Q: In what context might a cuboidal cell be superior to a columnar cell? O When their spatial…
A: Types of epithelial tissues- Squamous - simple & stratified Cuboidal - simple & stratified…
Q: Which molecule is an important component of the extracellular matrix of animal cells? O flagellin O…
A: Cells are attached to each other to form a tissue. There are many proteins involved in this…
Q: Cell with extensively developed Golgi apparatus is most likely to exhibit which of the following…
A: Golgi bodies or golgi apparatus is a cell organelle and it is an important part of endo membrane…
Q: Pancreatic beta cells produce and secrete large amounts of insulin protein. Which organelle would…
A: Pancreas secrete eznymes into the digestive tract that aid digestion. They also contain alpha, beta…
Q: What process best characterizesCa concentration) into the endoplasmic reticulum (high Ca 2+ movement…
A: A concentration gradient is set up when the concentration of the ions on both sides of the membrane…
Q: Which substance on the plasma membrane helps identify chemical signals from outside the cell? O…
A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…
Q: Which of the following organelles produces largequantities of ATP when both glucose and oxygen…
A: An organelle is a tiny cellular structure. It carry out particular functions within a cell such as…
Q: the extracellular matrix is not composed of a)Actin b)Fibronectin c)collagen d)proctoglyean
A: Extracellular matrix is a network of extracellular macromolecules and minerals such as collagen,…
Q: Which of the following cells has flagella? O A) Sperm cell O B) Epithelial cells O C) Erythrocytes O…
A: Ans - 68 Flagella is the structure which helps in motility of the cell. # Among the given cells,…
Q: Which structure is at a different level of organization from the other three? O liver O kidney O…
A: Cells are basic units of life. A cell contains several structural and fundamental molecules of life.…
Q: A cell/plasma membrane is made up of a(n): O protein bilayer. O cholesterol bilayer. O enzyme…
A: Phospholipid bilayer is the correct answer.
Q: Which of the following cell organelles contains RNA? O . Mitochondria O Plastids O Lysosomes O…
A: A cell is a structure that is enclosed by a membrane called the cell membrane and contains the…
Q: Which cell organelle is involved in apoptosis * ER Mitochondria O Golgi Lysosome
A: Cells are the basic structural and functional unit of life. All cell jave three main parts. Plasma…
Q: Infants with Tay-Sachs disease appear normal at birth, but begin to deteriorate by about 6 months of…
A: Introduction :- Tay-Sachs disease is a rare neurodegenerative ailment in which a lack of an enzyme…
Q: Cells are considered to be alive but none of the individual organelles inside the cell are. Explain…
A: A cell is considered to be the structural and functional unit of an organism. The organisms that are…
Q: Response to a signal includes: O Gene expression O Metabolic activity O Membrane permeability…
A: Introduction Cell signaling is the process in which different cells in the body of an organism…
Q: Organelles may exhibit membrane sidedness such that secretory vesicles from the ER are transported…
A: Golgi complex Golgi complex is the double membranous structure which pack protein into vesicles and…
Q: What type of transport mechanism secretes molecules by fusion of vesicles with the plasma membrane?…
A: Vescicle fusion into the plasma membrane allows secretion of molecules into the extra cellular…
Q: Which of the following is NOT a function of cell membranes? VO autolysis during programmed cell…
A: The plasma membrane, commonly known as the cell membrane, is semi-permeable in nature. It is a lipid…
Q: The plasma membrane, nucleus, and cytoplasm are the three main parts of the cell. Describe these…
A: Plasma membrane:- Plasma membrane is a living,thin,delucate selectively permeable membrane.chemical…
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: Describe structure of any one double membrane organelle and it's function
A: single membrane bound organelles: have single outer membrane. For example -lysosomes, golgi body,…
Q: Which of the following statements about actin is FALSE? a) Actin is involved in cytokinesis. b)…
A: Actin Actin is the globular multifunctional protein help in the muscles contraction.
Q: What sort of cellular changes would you expect a sailor sick with scurvy to experience? O Their…
A: Introduction: Vitamin C insufficiency is known as scurvy. Anemia, debility, tiredness,…
Q: Define the following terms:a. glycocalyxb. extracellular matrixc. cell cortexd. endoplasmic…
A: The covering made up of glycoprotein and glycocalyx which surrounds the cell membrane of bacteria is…
Q: Endoplasmic reticulum membrane which is associated with ribosomes is called O Endosome O RER
A: The endoplasmic reticulum is found in most eukaryotic cells and forms an interconnected network of…
Q: Which of the following functions is NOT made possible by lysosomes? O breakdown of large molecules O…
A: Lysosomes are the membrane bound organelles that are usually called as the suicidal bags of the…
Q: Tay-Sachs disease is a genetic disorder that results in thedestruction of neurons due to a buildup…
A: Single base changes induce six nonsense mutations and 14 splice site lesions, with all but one of…
Q: You have discovered a disorder in which individuals have very delicate skin. With friction on the…
A: There are many cell multimeric proteins that help in contacting the neighboring cells together by…
Q: The plasma membrane plays a key role in . communication among cells and between cells and their…
A:
Q: Which of the following is NOT a function of cell membranes? O autolysis during programmed cell death…
A: The cell membrane is also known as the plasma membrane, and it is semipermeable in nature. It is an…
Q: skeletal muscles is composed of very hardworking cells.which organelles do you expect to find…
A: Skeletal muscle is form of striated muscle tissue which is under the voluntary control of somatic…
Q: Which of the folowing organelles is involved in cellular respiration? mitochondria O nucleus…
A: In Cellular respiration living cells break glucose molecules, discharge energy, and form molecules…
Q: Skeletal muscle cells differ from cardiac muscle cells in that O skeletal muscle cells are spindle…
A: The skeletal muscle is a type of voluntary muscle whereas cardiac muscle is an involuntary muscle.…
Q: Major type of collagen in basement membrane: а. Туре 1 b. Type 2 с. Туре 3 d. Тype 4
A: Collagen are made up of proteins and give structural support two different cells and organs of the…
Step by step
Solved in 2 steps
- All of the following are filamentous proteins EXCEPTTissue injury can result in either regeneration or healing. Explain the similarities and differences between these responses, highlighting the significance of the Extracellular MatrixWhich of the following membrane lipids is mainly structural? Phosphatidylthanolamine All of the other answers are correct Phosphatidylcholine Spingomyelin Inositol phospholipids
- A 5-year-old child is admitted to the hospital having experienced repeated fractures over the preceding three years, predominantly due to overexertion. On examination, the patient's sclera appears blue; his teeth are bell shaped and show discoloration. X-ray reveals spine abnormalities and poor bone mineralisation. Which of the following extracellular matrix components is most likely to be affected in this child? Answers A - E A Collagen type I B Collagen type II C Collagen type VII D Glycoprotein E Osteocalcin O O OMatch the following to their proper description (answers may be used more than once). Gap junctions Adhering junctions Desmosomes Hemidesmosomes Tight junctions Tight junctions Tight junctions Connexons Connexons Zonulae adherens Cadherins Desmosomes Are also known as “zonulae adherens”. Are also known as “zonulae occludens”. Are calcium ion-dependent glycoproteins that mediate adhesion in adhering junctions. Are hexameric complexes formed by connexin proteins. Bind the cells to the basal lamina. Contain a central hydrophilic pore and occur in gap junctions. Contain protein filaments. Encircle the cell and provide firm connections with neighboring cells. Form seals that prevent the flow materials between adjacent epithelial cells. Form thin bands that completely encircle the cell. Permit the rapid exchange of materials between adjacent cells. Provide firm adhesion between cells via protein filaments that are coupled to intracellular filaments via a protein plaques.Which of the followings is not a possible component of extracellular matrix? (LO-K8) Collagen Tubulin Glycosaminoglycans Elastin
- Membrane proteins with specialized functions and distinct from other membrane proteins may be localized in one area of the cell membrane. True FalseDiscuss about Intercellular and intracellular interactions ofclassical cadherins in typical adherens junctions.What process best characterizes Ca2+ movement from the cytosol (low Ca2+ concentration) into the endoplasmic reticulum (high Ca2+ concentration)? O Calcium movement is spontaneous O Calcium movement involves active transport O Calcium movement occurs by facilitated diffusion using a transporter protein O Calcium movement does not require energy O Calcium movement occurs by passive diffusion A
- Facilitated diffusion is a lipid-mediated process. true falseGab junctions are intracellular matrix thatIf the RGD tripeptide sequence in fibronevtin wete absent. Which is true? integrims would not bind to fibronectin cadherins on adjacent cells would not be able to interact in a homotypic fashion. fibronectin could not form crosslink with other extracellular matrix proteins. glycosaminoglycans would not be able to assemble onto proteoglycans.