Cells move polar molecules across the cell membrane against a concentration gradient using _______________   a simple diffusion.   b modifications to membrane lipids.   c energy and transport proteins.   d random molecular movement.

Q: Many molecules move across membranes by diffusion.     Which of the following statements related…

A: Membrane transport is a mechanism which involves transport of molecules or substances. There are two…

Q: Active transport must function continuously because a.facilitated transport opposes active…

A: The mechanism of transporting molecules through a cellular membrane using cellular energy is known…

Q: Which answer below best describes the cellular location of ActRIIB (Select one)?   A. Endoplasmic…

A: ActRIIB means activin receptor type IIB. This protein act as the receptor for TGF-beta members such…

Q: Electrical gradients ( potential; charges) exists on cell membranes because in part when the cell is…

A: Membrane potential is the difference in the electric potential (gradient of ion concentrations)…

Q: Make an illustration/representation that will show how cell membrane carry out function of…

A: Cell membranes are a barrier to most substances, and this property allows materials to be…

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: All of the following are true about fluid mosaic model except: O a. Transverse diffusion can be as…

A: Cell membranes are selectively permeable membranes that covers the protoplasm. Cell membrane is…

Q: A scientist tags a phospholipid found in the Golgi apparatus. A while later this phospholipid has…

A: Golgi apparatus packages proteins into vesicles that are membrane-bound to be exported. Rough…

Q: Sketch out a cross section of a cell membrane showing proposed transporter involved in either…

A: cell membrane is the outer couvering of a cell and is made up of mostly of lipid bilayer and the…

Q: Plants are often subjected to warm temperatures. How might they adjust their cell membranes to deal…

A: High temperatures speed up the normal living process of plants to a maximum rate at and above 90…

Q: Cells are? A. None of the above B. Atoms that are bound together C. Tiny units of matter that form…

A: Answer: Cells are:- D) The smallest units of life. Cell is the fundamental unit of structure and…

Q: Seawater is hypertonic to the cytoplasm in vertebrate cells and in plant cells. It a red blood cell…

A: Hypertonic solution  A solution is known as hypertonic solution when the concentration of solute is…

Q: If there are 1,000 molecules of water INSIDE a cell and only 150 molecules of water OUTSIDE of the…

A: There are different types of transport system that help to move the molecule into and out of the…

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: The physical characteristics of a cell influence how it functions. For example, the surface area and…

A: Diffusion is a passive process of the transport of substances.

Q: The clear, structureless gel in a cell is its a. nucleoplasm. d. neoplasm. b. endoplasm. e. cytosol.…

A: In biology, the cell is the basic structural and functional unit of life. All cells enclose within…

Q: Or. Fayez Sar The volume enclosed by the plasma membrane of plant cells is often much larger the en…

A: Plants and animals are both eukaryotic beings, yet they differ structurally and functionally. The…

Q: What features are a part of all cells? Select all that apply. A. Nucleus   B. DNA   C. Cytosol   D.…

A: Cells are the structural, functional, and biological units of all living beings. Cells are of two…

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: Which of these cell junctions are open channels that connect the cytoplasm of adjoining plant cells?…

A: When different cells are lying in a group, they are joined with various processes. The communication…

Q: Prokaryotic and eukaryotic cells possess which of the following? A) a cytoskeleton B) a nuclear…

A: Introduction: A real nucleus exists in eukaryotic cells, whereas a primitive nucleus exists in…

Q: Osmosis is a special type of diffusion that ________.   a. moves water from an area with a high…

A: 1. Osmosis is a special type of diffusion that involve movement of water from an area with a low…

Q: Our cells need glucose for energy. When blood glucose is low, glucose must still be moved into our…

A: Transportation is a necessary, natural, and physiological activity that happens in all higher…

Q: How would an animal cell react in a glass of ocean water?   a. nothing will happen   b. It will…

A: When we put animal cells into pure, fresh water (H2O) , water enters the cells as a result of…

Q: The plasma membrane is made of: a) protein b) phospholipid c) nucleic acid d) carbohydrate e)…

A: The cell membrane (also known as the plasma membrane, or cytoplasmic membrane, and historically…

Q: 1. requires ATP A. diffusion 2. random movement of molecules from high to low B. facilitated…

A: Diffusion is the movement of molecules from a high region to a low-concentration area via random…

Q: A cell that contains a lot of mitochondria is most likely ___.

A: A cell that contains a lot of mitochondria is most likely ___. b). using a lot of…

Q: Which of the following is false in terms of the differences and/or similarities between a bacterial…

A: Bacterial cells and mammalian cells have many differences in the way of their genetic makeup,…

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: Suppose one of your cells has a solute concentration of 10%. If we put it in a glass of sugar water…

A: Osmosis is a process that involves the passive transport of solvent (water). In osmosis, water moves…

Q: The main difference between plant and animal cells is:   A Plant cells has small vacuoles…

A: Plant cells are eukaryotic cells that are present in green plants. On the other hand, an animal cell…

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: If' a substance temporarily interferes with the function of the structure labelled X, which of the…

A: Biological membranes are made up of a double layer of lipid molecules. The phospholipid bilayer is…

Q: Consider the drawing below. The membrane is permeable to salt and water, but not to sugar. a. In…

A: Membrane permeability refers to ability of membrane to allow certain substances to pass through it…

Q: Which of the following correctly compares how plant and animal cells differ?a. Plant cells have…

A: Cells are structural and functional unit of life. All organisms are made up of cells. Cells have…

Q: Three differences between animal and plant cells are Select one: a. Plant cells have mitochondria,…

A: Plant cells are the type of cells that are present and forms the plant body . Animal cells are…

Q: Which statement below is corredt when comparing plant and animal cells? O Plant cells only have a…

A: Introduction:  Cell make up the basic framework of all living beings, they are regarded as a…

Q: Scientists isolate proteins from various cellular organelles and check for the presence of known…

A: Proteins are macronutrients present in the body useful to build the muscle mass. the four levels of…

Q: Someone has broken a bottle of cologne inside the locker room. Which of the following is not…

A: The answer will be d.Protein transport molecules The reason explained below;

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: Which is NOT found in all cells? a. plasma membrane composed of phospholipids b. ribosomes c. DNA…

A: Prokaryotes are microscopic single-celled species that lack a nucleus, a membrane, and other…

Q: 1. Tonicity is the; A) Cell's response as exposed to fluids B) Fluid hypotonic to blood C) Fluid D)…

A: Since you have asked multiple questions, we will solve the first three questions (1, 2, 3) for you.…

Q: Which of the following best describes the difference between a plant cell and an animal cell? OA…

A: Cells require a structure that separates it from the external environment (also referred to as…

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: hich of the following cell organelles is absent in animal cells but present in a plant cell? a.…

A: To keep the entire system alive, the cells give shape, structure, and perform a variety of…

Q: A researcher made an interesting observation about a protein made by the rough ER and eventually…

A: It is an organelle found in eukaryotic cells.its main function is to produce proteins.

Q: 1 pts Which statement below is correct when comparing plant and animal cells? O Plant cells only…

A: Introduction :- The plasma membrane, also known as the cell membrane, is the membrane that separates…

Q: Choose one of the small molecules. List what it's macro- molecule Structure is and describe how the…

A: Glucose molecules- is one of smallest molecules and it provides energy, from the structure of the…

Q: CELL ENVIRONMENTS Fill in the following statement: Diffusion is the movement of molecules…

A: The difference in concentration forms the concentration gradient. Diffusion is a process by which…

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.