Answered: 1) What is diffusion? 2) How do…

Science

Biology

1) What is diffusion? 2) How do molecules move? 3) What direction do they go?

Biochemistry

9th Edition

ISBN:9781305961135

Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Chapter1: Biochemistry And The Organization Of Cells

Section: Chapter Questions

Problem 24RE: RECALL Which organelles are the sites of energy-yielding reactions?

See similar textbooks

Related questions

Q: Why is the intermembrane space acidic?

A: The mitochondria are the organelle present in the cytoplasm but not in the nucleus. It is mainly…

Q: What is the difference between a cell membrane and a plasma membrane?

A: Plasma membrane and cell membrane are quite different from each other. Plasma membrane of a cell…

Q: under what circumstances does diffusion and bulk flow work most efficiently?

A: Bulk flow ; Bulk flow is long distance transport of entire fluid in same direction. It is driven by…

Q: Does diffusion require energy to occur

A: Diffusion is a kind of transport in which dissolved substances or particles move from region of…

Q: What is simple diffusion?

A: The biological cell is a hub of metabolic and biochemical activities. Interaction between these…

Q: What is the effect of size on diffusion? Concentration? Temperature?

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

Q: What is inner membrane?

A: The cell is the smallest and fundamental unit of life. Every living being made up of cells and it is…

Q: What is membrane?

A: The cell is the smallest and fundamental unit of life. Every living being made up of cells and it is…

Q: What is the difference between osmosis and diffusion?

A: Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane…

Q: Which are the molecules that make possible active transport through membranes?

A: The movement of the molecules through the membrane from the region of its lower concentration to the…

Q: What can change the fluidity and viscosityof the plasma membrane?

A: The cell is surrounded by a protective cell membrane, which is composed of the phospholipid bilayer.

Q: What kind of molecules can use simple diffusion?

A: Simple diffusion is the process by which molecules are moved along the concentration gradient from a…

Q: What is the basic structure of a biological membrane?

A: Plasma membrane is a dynamic, fluid structure and forms the external boundary of cells. It acts as a…

Q: Which cell shape is best adapted for the rapid movement of substances from one cell to another?

A: Squamous cell shape is best adapted for the Rapid movement of substances from one cell to another.

Q: Sponges are full of holes, jellyfish are big open sacs, and flatworms are flat. How are these…

A: Cellular respiration is the energy-liberating process. It links with the gas exchange. Different…

Q: Where in the human body does diffusion occur? Give three examples.

A: Diffusion is the process of movement of a substance or solute from an area of its high…

Q: What molecules are responsible for the physical properties of a cell membrane?

A: The cell membrane, also known as the plasma membrane, is a biological membrane that covers all cells…

Q: What is meant by active transport across a cell membrane?

A: Cell membrane or plasma membrane is a thin, delicate, elastic and living boundary. The cell membrane…

Q: What does cytoplasm contains?

A: All living entities needs a structural and basic unit to act as organism; this unit is called as…

Q: What is the role of the outer membrane?

A: The cell membrane, also known as the plasma membrane, is a thin membrane that covers any living cell…

Q: Contrast diffusion and bulk flow?

A: Diffusion and bilk flow: For a molecule to from one place to another, diffusion and bulk flow are…

Q: Define the Diffusion of molecules ?

A: Diffusion of molecules or molecular diffusion is a physical process . It is a random thermal…

Q: Give some examples of Diffusion?

A: Diffusion The movement of particles in a solid from an area of high concentration to an area of low…

Q: how are simple diffusion and facilitated diffusion similar? how are they different? how are…

Q: Explain Diffusion Rate Versus Distance?

A: Introduction Cell is bounded by the membranous structure which don not allow the molecules to pass…

Q: According to Fick’s law of diffusion, which factors determine rate of diffusion?

A: Fick's law of diffusion describes the movement of solute from the region of higher concentration to…

Q: What is active transport?

A: The cell membrane is thin, elastic, flexible covering that holds the cellular contents. It is also…

Q: What do facilitated diffusion and active transport have in common? What are the differences between…

A: The cell membrane is thin, elastic, flexible covering that holds the cellular contents. It is also…

Q: Explain Diffusion Through Membranes?

A: The movement of molecules in the presence of a concentration gradient is known as diffusion. It is a…

Q: What is the difference between diffusion and facilitated diffusion?

A: Diffusion is a process by which particles move from higher concentrations to lower concentrations.…

Q: What Is Passive Diffusion?

A: Molecules can move via biological membranes via 2 main methods : active and passive transport.…

Q: Draw the diagram of facilitated diffusion?

A: Diffusion is a process of movement of molecules from a region of their higher to a region of their…

Q: Does active transport move large/charged particles?

A: Active transport is a type of membrane transport that allows the movement of large and polar…

Q: What is the importance of plasma membrane ?

A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…

Q: Which pathway depicts Facilitated Diffusion?

A: Facilitated diffusion is a mode of diffusion in which the passage od molecules from higher to lower…

Q: What is the difference between passive diffusion and facilitated diffusion?

A: Facilitated diffusion is a form of passive diffusion of molecules across a cell. In passive…

Q: List an example of diffusion in living things

A: Diffusion is a type of passive downhill transport based on a concentration gradient. Diffusion is a…

Q: What is cell body?

A: Cells are the structural unit that makes the bodies of all living beings.

Q: What are the forces that maintain structural integrity of biological membranes?

A: A biological membrane is primarily composed of a thin layer of a phospholipid bilayer that is…

Q: wo students are discussing the effect of concentration gradient on diffusion. Student A says, “The…

A: Diffusion is the movement of the particles and it usually occurs when there is a difference in the…

Q: . What kinds of molecules pass through a cell membrane most easily?

A: The Cell Membrane: The cell membrane, also known as the plasma membrane, is found in almost all…

Q: What is the immediate source of energy for simple diffusion? for facilitated diffusion?

A: The process resulting from random motion of molecules by which there is a net flow of matter from a…

Q: Why are cells small? What is the benefit of having greater surface-area-to-volume ratios?

A: Cell membranes are integral in the functioning of the cell. They not only maintain the integrity of…

Q: How does facilitated diffusion differ from simple diffusion?

A: Introduction: Diffusion is the process by which substances move from a high concentration area to an…

Q: What effects do membranes have on diffusion?

A: Diffusion is a passive transport process in which molecules move from a high concentration area to a…

Q: What characteristics distinguish facilitated diffusion from active transport?

A: The cell membrane possesses the unique quality of being selectively permeable. The selective…

Concept explainers

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.

Question

Recall diffusion.
1) What is diffusion?
2) How do molecules move?
3) What direction do they go?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

REFLECT AND APPLY Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.
RECALL State how the following organelles differ from each other in terms of structure and function: Golgi apparatus, lysosomes, peroxisomes, glyoxysomes. How do they resemble each other?
REFLECT AND APPLY Which statements are consistent with the known facts about membrane transport? (a) Active transport moves a substance from a region in which its concentration is lower to one in which its concentration is higher. (b) Transport does not involve any pores or channels in membranes. (c) Transport proteins may be involved in bringing substances into cells.
RECALL Which organelles are the sites of energy-yielding reactions?
pls help ASAP, thanks! “the structure above is?”
Quantitative – diffusion time: Consider a spherical, single-celled organism which needs oxygen tosurvive. a. Assume oxygen needs to diffuse from the outside of the cell to its center. Write an equation thatgives the diffusion time in terms of the cell radius. b. The cell has a 4 micron (m) diameter, and diffusion coefficient of oxygen is 1.8 x 10-5 cm2/s inwater (assume diffusion is the same through the cell membrane). How long does it take for oxygento diffuse to the center of the cell? c. Cells typically need key molecules such as oxygen to survive. Diffusion times of oxygen can limithow big cells can become. If the cell gets too large for oxygen to reach its center, the cell coulddie. Calculate the size of a cell at which oxygen diffusion time becomes too slow and so limits theability of the cell to get that big. Explain your assumptions. How does this compare to typical cellsizes?
(Chemical Connections 5B) In carbon monoxide poisoning, the hemoglobin is incapable of transporting oxygen to the tissues. How does the oxygen get delivered to the cells when a patient is put into a hyperbaric chamber?
RECALL Which reaction or reactions that we have met in this chapter require ATP? Which reaction or reactions produce ATP? List the enzymes that catalyze the reactions that require and that produce ATP.
REFLECT AND APPLY What is the energetic driving force for the formation of phospholipid bilayers?
RECALL Which of the five kingdoms consist of prokaryotes? Which consist of eukaryotes?
MRI What does the "induced free decay" curve describe?
CONSTRUCTIVE RESPONSE. Answer the following questions. What are the requirements for molecules to form hydrogen bond? (What atoms must be present and involved in such bonds?) How are hydrogen bonds involved in the transfer of genetic information? How does water dissolve polar and ionic compounds? Explain the process of these interactions. How does water affect the structure of biomolecules? What is the difference between a polar molecule, a non-polar molecule, and a dipole molecule? How do these molecules affect the intermolecular forces? Discuss the difference between hydrophobic, hydrophilic, amphipathic, and amphiphilic molecule