Aim: How do we apply logarithms? (Part III)

Slides:

Advertisements

Similar presentations

* Water Concentrations * Movement of water molecules (H20) across a permeable membrane. * Molecules move from area of high concentrations to areas of.

Advertisements

Transport of substances across a membrane without any input of energy by the cell. a. Diffusion b. Osmosis.

In active transport, energy is used to move a solute against its concentration gradient. For each molecule of ATP used, 2 K + are pumped into the cell.

Movement IN and OUT of Cells Substances move in and out through the cell membrane Moving from high to low concentration DOES NOT REQUIRE ENERGY by the.

Moving Cellular Materials Pg

Passive Transport. Healthy Cell 70% water 15% protein 10% fat 4% DNA and other materials 1% carbohydrate.

Requires energy to move substances across the membrane. -Small & large particles.

Active Transport Uses energy to get stuff across the Plasma membrane.

Aim: How has the electron microscope enabled scientists to see the unseen? Look how far we have come in 400 years.

Passive Transport Guiding Questions Answers

Osmosis.  Energy requirements?  No energy required  Modes of passive transport?  Diffusion through cell membrane  The movement of a substance from.

The Cell in Its Environment Mrs. Brunner Chapter 1: 4 7 th Grade.

The Cell and its Environment: The processes behind the movement of substances in and out of cells.

Coulter. Diffusion  The cell membrane is selectively permeable, which means that some substances can pass through the membrane while others cannot. 

Movement of particles across the cell membrane without using energy

II. Movement of Materials through Cell Membrane. Selectively permeable membrane- AAAAllows some materials to pass and not others.

Let’s look at one example involving osmosis. Osmosis is the diffusion of water across a semi permeable membrane such as a cell membrane. A semi permeable.

Facilitated Diffusion and Active Transport. Facilitated Diffusion Many molecules and ions need special protein channels to pass through the cell membrane.

Chapter 3. Passive Transport  Diffusion – molecules move spontaneously (no energy used) from an area of high concentration to an area of low concentration.

Diffusion The movement of molecules from an area of high concentration to an area of low. concentration.

PASSIVE TRANSPORT Movement of molecules across a membrane that requires no energy and always occurs down a concentration gradient Types of passive transport.

The cell membrane is a phospholipid bilayer. Sometimes you will hear it referred to as a “fluid mosaic”.

The Cell Environment Jennifer Naples DI Biology. Cell Membrane Works as the gatekeeper of the cell It is selectively permeable – it lets some substances.

The Logarithm as Inverse Exponential Function Recall: If y is a one to one function of x, to find the inverse function reverse the x’s and y’s and solve.

Diffusion and Osmosis. Passive Transport Passive transport- movement of molecules across a cell membrane without energy input Refresh: Solute Object being.

Active Transport Section 4.2. Movement Against a Concentration Gradient  The transport of a substance across the cell membrane against its concentration.

Notes Cells need to regulate what moves in and out of them,in order to maintain homeostasis. The cell membrane is in charge of what comes and goes. The.

Aim: How can we compare active and passive transport?

Moving Cellular Material Chapter 2, Lesson 3. Membranes Control the movement of materials in and out of cell. – Semipermeable – only certain substances.

Materials move across membranes because of concentration differences.

Hypotonic, Isotonic, & Hypertonic. A solute is… the substance dissolved in a given solution.solution.

Diffusion Diffusion- movement of any molecule from an area of high concentration to a low concentration Diffusion- movement of any molecule from an.

(7 th ) Chapter 3-4 Cornell Notes The Cell in its Environment.

Cells and Heredity Lesson 1.4 The Cell in Its Environment

Day 3.  Facilitated Diffusion – Transport of substances from high concentration to low with aid of proteins  Remember, diffusion is ALWAYS high to low.

Topic: Cell Processes Aim: Describe the two types of passive transport. Do Now: You have 2 minutes to copy the topic, aim and homework. The do now activity.

Cell Movement and Energy

Active Transport Across the Cell Membrane

THE CELL IN ITS ENVIRONMENT

Unit 3 “Movement Through Cell”

Section 4 Cellular Transport

Active and Passive Transport

Cell Transport.

Active Transport Notes

Tonicity Isotonic Hypertonic Hypotonic

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Plant and Animal Cell Structures

Imagine you have a baseball card that is worth exactly $1

Section Objectives Predict the movement of water and other molecules across selectively permeable membranes. (SPI ) Compare and contrast.

Cellular Physiology TRANSPORT.

How do materials get in and out of a cell ??

The Cell in It’s Environment

Cellular Processes.

Cellular Transportation

Cellular Physiology TRANSPORT.

BIOLOGY Unit 2 Notes: Cell Membrane Transport

How is the idea of equilibrium related to the cell membrane?

Types of Transport Review

Cell Processes.

Cell transport.

Movement Through a Membrane

Movement of particles across the cell membrane without using energy

Cell Processes 7th 15.2 Cell Transport.

Cell Transport.

BELLWORK What are the three organelles that only plants have?

Movement of particles across the cell membrane without using energy

How cells move things in and out

Selectively permeable membranes

Presentation transcript:

Aim: How do we apply logarithms? (Part III) Do Now: Solve for x:

A radioactive substance has a half-life of 3 years A radioactive substance has a half-life of 3 years. After how long will 20% of the substance remain?

The energy, E, in kilocalories per gram molecule, required to transport a substance from the outside of a living cell to the inside is given by: where C1 is the concentration outside the cell and C2 is the concentration inside the cell. The concentration of a particular substance inside the cell is six times the concentration outside the cell. How much energy is required to transport the substance from the outside to the inside of the cell?

The energy, E, in kilocalories per gram molecule, required to transport a substance from the outside of a living cell to the inside is given by: where C1 is the concentration outside the cell and C2 is the concentration inside the cell. The concentration of a particular substance outside the cell is eight times the concentration inside the cell. How much energy is required to transport the substance from the outside to the inside of the cell?