What substance joins proteoglycans together into gigantic complexes called proteoglycan aggregates? These complexes can occupy very large volumes. a. hyaluronidase b. hyaluronic acid c. proteoglycase d. fibronectin e. laminin

Q: Which of the following is true about plant cellulose synthesis? a.cellulose fibers are arranged in…

A: The plant cell wall is made up of matrix and microfibrils. The matrix is made up of water, pectin,…

Q: Which of the following molecules require(s) a transport/ shuttle system when transported across…

A: Glucose is utilized by glycolysis process, then it converts to Acetyl CoA which enters to TCA cycle…

Q: feet, shown in the image attached. Her past medical history is significant for pernicious anemia and…

A: Vitamin B 12 Deficiency: Vitamin B12 deficiency is a condition that occurs when the body lacks…

Q: In what way do phospholipids differ from normal lipids called triglycerides? a.…

A: Biofilm formation is a natural process exhibited by most of the microbes and it helps to provide…

Q: When you put an apple slice in the oven at 40°C, catecholase functions better than: a. At room…

A: Enzymes are biological catalysts that increase the rate of chemical reactions taking place inside…

Q: Most medically useful antibiotics interfere with either peptidogly¬can synthesis or ribosome…

A: Antibiotics need to selectively target bacterial structures or processes while sparing human cells…

Q: Some genetic diseases cause deficient activity of lysosomes. What would be the direct consequence of…

A: A lysosome is an organelle in a cell which have many digestive enzymes for the digestion of various…

Q: After investigation of a specimen under light microscope and electron microscope, numerous amounts…

A: spores are found from many organisms such as : bacteria  fungi  plants  they help in reproduction…

Q: A significant structural feature in the digestive system is the presence of tight junctions located…

A: Answer: Introduction: A tight junction means a type of regular cell junction is prepared by…

Q: Which of the following is true about phospholipid bilayers? a. The hydrophobic head faces the cell…

A: The phospholipid bilayer consists of two layers of phospholipids, with a hydrophobic, or…

Q: The predatory bacterium Bdellovibrio bacteriovorus is able to penetrate a gram-negative bacterium…

A: Bdellovibrio bacteriovorus is a predator bacteria. It can invade several Gram-negative bacteria. The…

Q: Below is the picture showing three types of cartilage a) Hyaline cartilage b) Fibrocartilage c)…

A: Introduction: The connective tissue comprises cells called chondrocytes and fibers (yellow elastic…

Q: . How do you know what type of cell this is? C. Identify the structure the arrow. d. What does the…

A: Cell : It consists of cytoplasm which is bounded by a cell membrane . Cells are generally…

Q: The smooth endoplasmic reticulum is a. involved in protein synthesis. b. a site of protein…

A: Endoplasmic reticulum is an irregular network of double membrane bound tubules. These extend from…

Q: Select the best answer or answers from the choices given: A pancreas cell makes proteins (enzymes)…

A: The pancreas is located in the abdomen, behind the stomach. It is approximately 6-10 inches long…

Q: A. ciliary movement °B. contractile ring of cleavage furrow C. pigment granule transport in fish…

A: Microfilaments are double-stranded molecules of polymerized fibrous (F) actin. Microtubules are…

Q: The K+ channel is an example of a transmembrane protein (a protein that spans the phospholipid…

A: Transmembrane protein is a kind of integral membrane protein and spans the cell membrane entirety.…

Q: Although rabbits cannot digest the cellulose in their all-plant diet, bacteria that live in their…

A: The feces produced by the rabbit is called cecotropes. They are also known as caecal pellet and are…

Q: Mitochondria have 70S ribosomes, yet antibiotics that target those structures are more toxic to…

A: Bacteria or rather prokaryotes have been around far longer than their eukaryotic counterparts,…

Q: 4. Choose a statement that best correctly characterizes membrane-bound ribosomes. a. Bound…

A: The correct statement that characterizes membrane-bound ribosomes is: c. Bound ribosomes generally…

Q: 16. Lare specialized sphingolipid and cholesterol enriched microdomains within cell membrane. a. G…

A: The plasma membrane is present in all living cells present in all living organisms that protects the…

Q: Cholesterol is a _____ substance found in the ______                 A. protein; Golgi apparatus.…

A: Cell is the basic structural and functional unit of life.

Q: Tab. 20.2. Pathological structural changes of cell organelles Ribosomes -Smooth endoplasmic…

A: Cell organelles play a crucial role in maintaining the structure and function of eukaryotic cells.…

Q: Which of the following best describes the lipid aggregates known as liposomes? A. They contain a…

A: Liposomes are microscopic spheres composed of phospholipids that form a bilayer membrane, similar to…

Q: Proteoglycans are: a. Consisted of 95% carbohydrate and 5% protein b. Proteins that are glycosylated…

A: <!--<SUB-PART>--> (a) <!--<SUMMARY-INTRODUCTION>-->   To Determine: If the…

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: Although it will likely never be recognized by the general public, lipid nanoparticals are the…

A: Lipid nanoparticles are now widely used for the cure of COVID-19 by the vaccines. Liposomes are the…

Q: 1) Phosphatidate composed of octadecanoate fatty acids 2) Phosphatidate composed of hexadecanoate…

A: The graph given below shows the fluidity of membrane. The degree of bilayer fluidity depends on…

Q: (a) What is the amount of cellulose in plant cell? Describe the molec- ular structure of cellulose.…

A: Cellulose is a naturally occurring chemical molecule that is required by plants. Cellulose is a…

Q: Explain in detail how amino acids can be transported across the plasma membrane

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which of the following are the common features for both adenylate cyclase and guanylyl cyclase? a)…

A: Proteins that function as biological catalysts are known as enzymes. Catalysts help to speed up…

Q: A patient with a liver dysfunction has shown extremely high levels of bilirubin. Which of the…

A: Liver dysfunction: Liver dysfunction is a pathophysiological condition of the liver where the liver…

Q: Why are carbohydrates the main determinants of cell-cell and immune system recognition process? A.…

A: Carbohydrate are present on the exterior of cell membrane.These form the integral part of plasma…

Q: Define the following terms: a. heparan sulfate proteoglycans b. syndecan c. glypian d. serglycin e.…

A: Glycoproteins are defined as any of a class or group of proteins with carbohydrate groups attached…

Q: Liposomes used in COVID vaccines also contain phospholipids like those in the plasma membrane of…

A: Liposomes are closed the bilayer structure spontaneously formed by hydrated phospholipids that are…

Q: A cell that produces glycoproteins that contain 8-9 mannose residues per sugar chain has a…

A: The question is asking us to identify the organelle in a cell that is responsible for a defect in…

Q: Derivatives of which amino acid are critical for crosslinking of keratin fibers? Select one: a. Gly…

A: Keratin fibers are considered as the fibrous proteins which are mainly present in hairs, nail,…