What kinds of molecules pass through a cell membrane most easily? A. large and hydrophobic B.small and hydrophobic C. large polar D.ionic E. monosaccharides such as glucose

Q: Which structure will determine that a cell is prokaryotic? a. cell membrane  b. cytoplasm  c.…

A: According to the question, we have to mention the structure that will determine a cell is…

Q: A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum…

A: Endomembrane system: - it is a system through which the cell modifies, packages and transports the…

Q: Active transport of a substance across a membrane requiresa. a gradient b. the expenditure of ATP c.…

A: Cellular transport is the movement of molecules and ions across the cell membrane. Cells have two…

Q: Which of the named systems is isotropic? Select one: a. Endoplasmic reticulum membrane O b. Nuclear…

A: Biology is the study of living things. Cell biology is the study of cells. It is said to be…

Q: True or False _____ a. the cell membrane is a selectively permeable or semi-permeable structure.…

A: The cell membrane is semipermeable (or selectively permeable). It is made of a phospholipid bilayer,…

Q: A scientist compares the plasma membrane compositionof an animal from the Mediterranean coast with…

A: Answer- The cells from the Mojave Desert animal will have ahigher cholesterol concentration in the…

Q: What variable(s) influence(s) whether a nonpolar molecule can move across a membrane by passive…

A: All the above choices are correct as all these variables influenced a non polar molecule to move…

Q: Which of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a.…

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

Q: Which of the following enables ions such as sodium to cross a plasma membrane? A. phospholipid…

A: Plasma membrane  It is a semipermeable membrane made up of proteins, phospholipids, carbohydrates…

Q: Which of the following does NOT contribute to the selective permeability of a biological membrane?…

A: Which of the following does NOT contribute to the selective permeability of a biological membrane?

Q: What kind of membrane proteins trigger a change in cellular activity in response to a stimulus?   A.…

A: Stimulus - Stimulus is defined as the foreign particle which influences the cell to respond to the…

Q: All of the chemical reactions that occur in a cell are calleda. homeostasis. b. metabolism.c.…

A: Biochemical reactions is the transformation of one molecule to a different molecule inside the cell…

Q: Which form of transport through the plasma membrane requires the expendi- ture of energy by the…

A: Active transport is the movement of molecules across a cell membrane across a concentration gradient…

Q: Proteins like albumin in the blood maintain water inside the blood vessels using A. Osmotic pressure…

A: Question - Proteins like albumin in the blood maintain water inside the blood vessels using A.…

Q: Facilitated diffusion differs from active transport in thatfacilitated diffusiona. expends no ATP.b.…

A: The cell membrane is semipermeable and allows only certain molecules transportation from in and out…

Q: Osmosis, the diffusion of water is distinct from the diffusion of oxygen because a) oxygen is a…

A: Osmosis, the diffusion of water is distinct from the diffusion of oxygen because?

Q: The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the…

A: Plasma membrane separates interior of the cell from outside environment. It allows specific…

Q: The cytoplasmic connections from cell to cell are known as:   A middle lamella B…

A: The cell wall is an outer protective membrane in many cells including plants, algae, and fungi. The…

Q: Which of the statement about cell membrane is not true? * It contains protein molecules embedded in…

A: Introduction - cell membrane or plasma membrane is thin , elastic, semipermeable, Lipoproteinaceous…

Q: What helps in the passage of hydrophilic solutes through the plasma membrane? A. Protein in the…

A: Hydrophilic is the term given to substances that are polar and water loving. These substances can…

Q: A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum…

A: The ribosomes, smooth endoplasmic reticulum, and rough endoplasmic reticulum are the cell organelles…

Q: A young man in his 20s has a heart attack and is rushed to the hospital. Blood is drawn, and his…

A: Simple diffusion – the molecules of gases such as oxygen and carbon dioxide are tiny enough to pass…

Q: The cells making up the epithelial linings of organs that contain liquid, e.g., the bladder and…

A: Epithelial tissues act as the thin protective layer of cells which covers the surface of the body as…

Q: Which of the following processes requires the cell to expend metabolic energy directly (e.g., from…

A: Metabolism is a series of life-sustaining biochemical systems which allow creatures to convert…

Q: what do you think scientists mean when they say that the cell membrane is fluid

A: The inner region of the cell is separated from the outer environment by a protective membrane…

Q: Why are ion channels necessary to transport ions into or out of a cell? a. Ions are too large to…

A: The answer to the above question is option (b) (b) Ions are charged particles and cannot diffuse…

Q: otein Which of following statements is true? A. Polar molecules cannot simply diffuse across the…

A: Polar molecules are the charged molecules.  There is no charge on the non polar molecules. Cell…

Q: What is assumed as the cell membrane function in connection with it as a mechanical structure Select…

A: The cell membrane, also known as the plasma membrane, is a double layer of lipids and proteins that…

Q: Which of the following processes requires protein carriers to move materials up their concentration…

A: a. active transport.

Q: What is the primary function of carbohydrates attached to the exterior of cell membranes? a.…

A: The top layer of animal cells is called the plasma membrane. By Singer & Nicholson, the…

Q: A selectively permeable A. allows some substance to move across the membrane, but not others B.…

A: Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the…

Q: which component of cell membrane gives the negative surface charge of most cells? Select one: a.…

A: Cells should eliminate, absorb, and exclude several substances in appropriate amounts that are…

Q: A student has 3 unknown molecules. In order to better understand the properties of these molecules,…

A: Biological membrane have Hydrophilic and Hydrophobic properties

Q: Which structure is not a component of all cells?a. cell wall c. genetic materialb. cell membrane d.…

A: Cells are the basic building block of our bodies.

Q: What is the primary molecule of the cell membrane

A: The cell membrane, also called the plasma membrane, is found in all cells and separates the interior…

Q: Describe what it means for a membrane to be “fluid.”

A: Fatty-acid-based lipids and proteins make up the majority of cell membranes. Phospholipids and…

Q: The diffusion of substances within a solution tends to move those substances ________ their ________…

A: Diffusion is the movement of a substance from an area of high concentration to an area of low…

Q: You have a beaker filled with a solution containing 2M glucose, 4M urea and 1M salt. Suspended in…

A: ( Comment: As per the guidelines, we are allowed to answer maximum three subparts of a question at a…

Q: The structure that confers structural strength on the cell is known as the A) cytoplasmic membrane.…

A: Cells, which are microscopic in size, form the structural and functional unit of the living…

Q: The structure where amino acids are put together in order to make proteins is the ________________.…

A: Answer: c). Ribosome   The gene has a region(s) that codes for a protein - like a cookbook has a…

Q: The cell's plasma membrane repels water and is composed primarily of which macromolecule ?…

A: The plasma membrane is composed of phospholipids ( mainly) , phospholipid consist of fatty acids and…

Q: A cell membrane with no proteins will still show which process? a) active transport b) facilitated…

A: Introduction :- The cell membrane, also known as the plasma membrane, separates the interior of the…

Q: Choose which substances cannot pass through the phospholipid bilayer of the plasma membrane.  A.…

A: Phospholipids:These are a type of lipids. A phospholipid molecule structure usually contains two…

Q: The breaking of the bond to the last phosphate group of ATP releases energy that can be used by a…

A: Energy is liberated when the ATP breaks into ADP and inorganic phosphate. ATP consists of 3…

Q: Which of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within…

A: Cell membranes serve as both organizers and protectors. An outer plasma membrane surrounds every…

Q: Which form of transport through the plasma membrane requires energy by the cell? Select one: a.…

A: The plasma membranes of the cells are selectively permeable to various biomolecules and ions. The…

Q: Matter can leave a cell by any of the following means excepta. active transport.b. pinocytosis.c. an…

A: The plasma membrane is a dynamic structure that help in regulated entry and exit of small and large…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.