Which of the following modes of transport across biological membranes is driven by a chemical gradient? A) Facilitated diffusion B) Simple diffusion C) Active transport D) a and b only

Q: 7) Which is the best definition of osmosis? a) movement of molecules from an area of their higher…

A: Diffusion is a process by which molecules or substances move from a higher concentration to a lower…

Q: "In a beaker containing 6% NaCl, you place a cell which contains 0.9% NaCl. NaCl doesn t cross the…

A: Introduction :  Osmosis is a passive process and happens without any use of energy. It involves the…

Q: The lysosome a) is a vesicle for food b) contains oxidase enzymes. c) adds carbohydrate chains to…

A:

Q: What membrane component is represented by C in the diagram? MASAAN NAMMANS AMHAMASIN FOOD HEADBOARD…

A: Introduction  A membrane is a thin, selectively permeable layer of material that separates two…

Q: You Are Examing A Protien That Is Secreted By White Blood Cells.What Is The Most Likely Route This…

A: Secretory proteins are always secreted out of the cells and include hormones, enzymes, toxins,…

Q: Water moves molecules passively across a cell membrane by: a)osmosis

A:

Q: of the following are located in the cytoplasm except: (choose one only) a) chloroplast b)…

A: Answer is option A.

Q: how does a phospholipid differ from a

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

Q: Knowing that there is constant turnover of phospholipids in a cell’s membrane and that new…

A: A cell bilayer membrane is made of two layers that surround the cell and face each other, each layer…

Q: The binding of inositol 1,4,5-trisphosphate (IP3) to the IP3 receptor results in the release of from…

A: Inositol 1,4,5-trisphosphate (IP3) is a second messenger molecule that acts as a ligand for the IP3…

Q: Proteins which are only on one side of the plasma membrane and may not interact with the…

A: The Proteins which are only on one side of the plasma membrane and may not interact with the…

Q: Which molecule(s) would be expected to diffuse into a cell using passive transport? A) Carbon…

A: The molecules which can easily pass through the plasma membrane without the help of any transport…

Q: Diffusion means that a)  smaller particles move across the membrane faster. b)  all particles…

A: The movement of particles from an area of higher concentration to an area of lower concentration…

Q: When a Prokaryote or Eukaryotic cell is placed in an aqueous (water) solution containing K+ and Na+…

A: A cell membrane separates all cells from their surroundings. The cell membrane controls what enters…

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: The endomembrane system is responsible for

A: Within a eukaryotic cell, the endomembrane system is made up of several membranes suspended in the…

Q: Endocytosis results in the production of a) a vesicle with a single membrane b) an organelle with…

A: The carrier & channel proteins transport small molecules through the phospholipid bilayer.…

Q: Receptor mediated endocytosis requires the presence of a) primary active transport pumps. D) carrier…

A: Introduction Endocytosis is the formation of an intracellular membrane-bounded vesicle containing…

Q: Exocytosis is the last step of secretion of proteins from the cell. There are two broad types of…

A: Exocytosis: It is a process of exudating the secretory products or undigested waste products to…

Q: Carrier proteins that bind to substances to move them through the membrane and proteins that form…

A: Proteins are one of the integral groups of biomolecules. They have diverse functions such as…

Q: Both active and passive transports can be subdivided further. Distinguish between the different…

A: According to our guideline we can answer maximum three subparts of a question. So upload the last…

Q: If a membrane protein is described as "integral" what does that word refer to? A) super important;…

A: Integral membrane proteins are for all time inserted or embedded inside the plasma membrane. They…

Q: 3)What is the second type of lipid that plays a major role in the plasma membrane? This lipid does…

A: The plasma membrane of the cell regulates the transportation of different molecules in and out of…

Q: 32.     ________ are members of an integral membrane glycoprotein family that bind to specific…

A: The question is asking to identify the type of integral membrane glycoprotein family that has the…

Q: Typically, our cells have a high concentration of sodium ions outside and a low concentration of…

A: There are many proteins present in the cell membrane to transport substances across the cell…

Q: The hydrophobic interior of the cell membrane is created by O O a) peripheral proteins b)…

A: Introduction :  Phospholipids are compound lipids made up of alcohol, fatty acids, nitrogen base,…

Q: he principal force driving movement in diffusion is: a) gravity b) random movement of particles in…

A: Diffusion is defined as the movement of particles from region of higher concentration to a lower…

Q: What integral membrane protein family made of two membrane-spanning chains (α and β) is involved in…

A: The question is asking to identify the type of integral membrane protein that is composed of two…

Q: Joins an actin bundle in one cell to a similar bundle in a neighboring cell a)Desmosomes b)Tight…

A: The cells junctions are the the connecting links between cells or cell and matrix. These provide…

Q: How does a chloride ion move across a membrane? a) osmosis b) facilitated diffusion O c) dynamic…

A: Introduction  A membrane is a thin, sheet-like structure that separates and defines the boundaries…