Q: The presence and orientation (direction) of integral glycoproteins indicates that the plasma…
A: The plasma membrane is also known as the Cell Membrane. It is a vital component of a cell that…
Q: What substance would you most expect to easily pass through a cell membrane (phospholipid layer)…
A: Cell membrane forms boundary of cell. It separates outside environment from inside environment.…
Q: Carbohydrates are attached to plasma membrane proteins in the ER (see Figure 7.9). On which side of…
A: The ER membrane is designed in such a way that it is selectively permeable. Most biological…
Q: The plasma membrane is an effective barrier to molecular movement across it, yet many substances do…
A: The separation of the internal and external components of the cell is managed by a membrane called…
Q: Explain why there is resting membrane? *
A: Resting member is to maintain the action potential difference between the intercellular matrix and…
Q: Cell membranes can maintain a difference in electrical charge between the inte- rior of the cell and…
A: Cell membrane is negatively charged from inside in comparison to outside. But at the time of impulse…
Q: Many of the cell’s hydrolytic enzymes are located in the lysosome, where the pH is ∼5. What would…
A: Lysosome is a cell organelle .
Q: Vesicle transport occurs between the ER and the Golgi in bothdirections. Let’s suppose a researcher…
A: ER is endoplasmic reticulum and is mainly involved in the synthesis of proteins, lipids and some…
Q: Compare the structure of tight junctions and gap junctions.Relate their structural differences to…
A: Cell junctions are the intercellular bridges, which act as adhesion contact between neighboring…
Q: What features of a membrane are major contributors to its selectivepermeability?a. phospholipid…
A: The plasma membrane is the outer covering in the cells with no cell wall or any other outer covering…
Q: Which substances cannot pass directly through the phospholipid bilayer of the plasma membrane.
A: Cells have an outer covering that is commonly known as the plasma membrane or cell membrane. This…
Q: Researchers tried to explain how vesicular transport occurs in cells by attempting to assemble the…
A: Introduction The transport via GERL system is referred as Endomembrane Transport which functions as…
Q: Which of the following molecules freely diffuses through the lipid bilayer of the plasma membrane? O…
A: The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate…
Q: b) Cellular membranes are generally found in environt diagram of what the phospholipid bilayer of a…
A: Life's functional units are cells. Cells are also the fundamental building blocks of life. A variety…
Q: in your own words, describe what would haooeb to the phospholipids f the plasma membrane in animals…
A: The plasma membrane, also known as the cell membrane, is the membrane that divides the inside of the…
Q: Compare and contrast the structure and function of the three major types of membrane junctions.
A: Epithelium occurs on the external and internal exposed surfaces of the body parts and for a…
Q: Plasma membrane of neurons has various kinds of channels. Give your viewpoint why nature provided…
A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…
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: Membrane proteins perform the following functions EXCEPT one. Which One? A. form the glycocalyx B.…
A: Channel proteins form pores through the membrane. These allow passage of molecules.
Q: What substances can pass freely through the plasma membrane.
A: A biological membrane that forms the boundary between the cytoplasmic contents of the cell from the…
Q: Does skeletal muscle, like cardiac muscle, have gap junctions between adjacent cells? Why or why…
A: The muscles in the body are the primary issues that are responsible for the functions of Movement…
Q: 50 Anatomy & Physiology Coloring Workbook (C) Answer the following questions referring to Figure…
A: According to the question, we have to answer the questions based on the diagram given. These…
Q: A plasma membrane in higher temperatures would be temperatures. a membrane in colder more rigid than…
A: Ans: More fluid
Q: Which of these cannot pass directly through the phospholipids of the plasma membrane?
A: The lipid bilayer of plasma membrane is selectively permeable i.e., it only allows some materials to…
Q: Why transcytosis is not listed as a separate means of membrane transport, in addition to pinocytosis…
A: Transcytosis: A type of transcellular transport called transcytosis involves the movement of…
Q: The cell membrane regulates the movement of molecules in and out the cell. what other functions does…
A: Cell is the basic membrane-bound unit that contains the fundamental molecules of life. All living…
Q: What effect will increasing the proportion of unsaturated fatty acids in the bilayer have on the…
A: The correct option is (A).
Q: Exocytosis requires the release of a neurotransmitter (a molecule or a small peptide) for the…
A: Cell-to-cell communication is an important factor that is necessary for the normal functioning of…
Q: "Which of the following cell processes depend on the movement of membrane components and would not…
A: Introduction The cell membrane or plasma membrane is present in all cells and helps to separate the…
Q: Which of the following is/are TRUE about ion channels and membrane pumps? a) lons can only move…
A: Ion channels are membrane proteins that are important in regulating cellular excitability. They are…
Q: Describe chemical composition of plasma membrane
A: The cell membrane or plasma membrane is defined as the physical and chemical barrier, responsible…
Q: A solution of water and dissolved ions is separated by a selectively permeable membrane that allows…
A: Introduction The potential energy of water per unit volume in comparison to pure water in reference…
Q: Which properties are characteristic of ion channels?a. They are usually lipids.b. They exist on one…
A: The cells are covered by a plasma membrane which forms a barrier between the cell interior and the…
Q: Describe the structure and function of the three types of junctions found between cells.
A: Cell junctions are intercellular(between the cells) and play a major role in cell adhesion,…
Q: List 2 functions of peripheral membrane proteins
A: Definition:- Peripheral membrane proteins are the proteins which are temporarily attached to the…
Q: List 2 functions of peripheral membrane protein
A: Peripheral membrane protein - it is the membrane proteins adhere only temporarily to biological…
Q: Which of the following is Not a function of the plasma membrane proteins? A. Acting as enzymes B.…
A: Plasma membrane proteins are the proteins that are associated with the phospholipid bilayer. These…
Q: Explain the Donnan Membrane Phenomenon. Why is it important for the homeostasis of the cell?
A: There occurs different biochemical reactions in the human body. Since a chemical reaction is the…
Q: If the phosphoglycerolipids constituting the framework of the plasma membrane, these are what give…
A: Plasma membrane is the external boundary of the cell. It is a dynamic and quasi fluid structure. It…
Q: What type of membrane proteins did you study in your course. Explain three types, their location and…
A: Membrane proteins are common proteins that are part of biological membranes or also intrect with…
Q: Explain why biological membranes are said to be selectively permeable or semipermeable. Address how…
A: Since you have posted multiple questions, we will solve the first question for you. To get the…
Q: Diffusion is an active process in which molecules move from a region of lower concentration to one…
A: Hello, thank you for your question.
Q: When à sea horse sees a predator, its nervous system kicks into high gear. A charge reversal wave…
A: Given: When a sea horse sees a predator, its nervous system kicks into high gear. A charge reversal…
Q: Concerning the plasma membrane: A Approximately 80% of the plasma mem- brane mass is composed of…
A: The plasma membrane is the enclosed membrane, which separates the cytoplasm from the outer cellular…
Q: The two types of membrane proteins are peripheral and _____________.
A: Membrane proteins play a vital role in serving as membrane receptors, ion channels, G…
Q: Channel proteins always have passive transport, but carrier proteins can be either active or…
A: Introduction: In order to allow water and small polar ions to pass through the cell membrane,…
would substances be able to pass through the plasma membrane if the phospholipi tails of the plasma membrane were oth satueated fatty acids? why or why not, explain?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- Would substances be able to pass through the plasma membrane if the phospholipid tails of the plasma membrane were both saturated fatty acids? Explain why or why not?why is unsaturated fatty acid used to maintain membrane fluidity and flexibility?Describe ONE modification that could happen to the phospholipids in a membrane that would increase the permeability of the membrane to small non-polar molecules such as oxygen gas. Explain why this modification would increase membrane permeability.
- Peripheral membrane proteins are not amphipathic and do not associate with the nonpolar regions of the lipids? Explain why?Membranes that contain a significant proportion of cis unsaturated fatty acids are more fluid than similar membraneswith higher levels of saturated fatty acids. Explain.Why should triacylglycerol be insignificant component of plasma membrane ?
- Why must cholesterol, although lipid-soluble, cross most membranes by means of receptor-mediated endocytosis or transporters? Propose a mechanism for co-transport of cholesterol through a plasma membraneCholesterol is abundant in the plasma membrane. Would you expect cholesterol to flipbetween the two leaflets of the membrane faster than phospholipids, or slower, or atthe same rate?The tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobic
- Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid, would be the most likely to decrease that membrane’s fluidity? linolenic acid, with 18 carbons and three carbon-to-carbon double bonds linoleic acid, with 18 carbons and two carbon-to-carbon double bonds stearic acid, with 18 carbons and no carbon-to-carbon double bonds oleic acid, with 18 carbons and one carbon-to-carbon double bond all of the above molecules are saturated, and equally likely to decrease membrane fluidityHow do ion channel proteins fold in the lipid bilayer membranes? What are at least two factors that maintain the stability of collagen? Explain.A biochemist performed a subcellular fractionion ( a separation of cell organelles) and them run TLC to measure the relative presense of defererent lipids. In one fraction there was an absence of cholesterol. What fraction was it? O plasma membrane O cytoplasm O lysosome mitochondria O nucleus