Active Transport Noadswood Science, 2012.

Slides:

Advertisements

Similar presentations

Transport in living things

Advertisements

Digestion and Absorption 10/11/11

Assessment Statements H.3.1 Draw and label a diagram showing a transverse section of the ileum as seen under a light microscope. H.3.2 Explain the structural.

AQA Science © Nelson Thornes Ltd B3 1 Summary Exchange of materials Chapter review.

Exchange of materials Chapter review.

MOVEMENT INTO AND OUT OF CELLS

Movement In and Out of Cells

1 Movement Across Membranes 2 1. Diffusion 3 DiffusionDiffusion Particles in liquids and gases move in random directions with a certain amount of kinetic.

Chapter 3 Diffusion and Osmosis.

Active transport p.216.

Movement in and out of cells

 Transport can be passive or active.  Passive requires no energy and moves down a concentration gradient from high to low concentration  Active requires.

How can a shark find injured prey so quickly?

Human Digestive System. 1)Describe the structure of the inner wall of the small intestine and explain it’s role in terms of increased surface area for.

Food Production Action in Plants Plant cells  Plant cells contain a jelly-like cytoplasm  They all have a nucleus  They usually have a sap-filled.

Biology GCE O ’ Level Revision program. Cells and Osmosis:

Review: Root Anatomy Three regions – Meristematic – Elongation – Maturation.

What can you smell? I´m going to spray some perfume in the corner of the room As soon as you can smell it stand up Now you have 2 min explain what just.

Chapter 7 Sections 3 and 4 Cell Boundaries and Transport.

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.

Roots Main function: –Absorb water & nutrients Transport them to the above ground plant –Anchor the plant in the ground –Some store energy as carbohydrates.

Transport These blood cells have been put in three different solutions. The solutions were: distilled water, sugar water and an isotonic sports drink.

Movement of Substances through a Cell Membrane

Specialised Cells.

Movement of Substances. What you need to know 1.What is diffusion? 2.What is osmosis? 3.How is active transport different from diffusion? 4.What causes.

TRANSPORT MECHANISMS WITHIN VASCULAR PLANTS

 Xylem – brings water from the root to the leaves of the plants  Phloem – transports sugar from one part of the plant to another.

How do plants taken in water from the Soil?. Root Hair Cells Roots do more than just anchor the plant in the ground, they take up water and mineral salts.

Cells, tissues, organs and organ systems a b c Starter: Which part of the cell 1)Is a jelly like substance where most chemical reactions take place ?

Diffusion is the process by which particles of gases or liquids spread out from an area where there are lots of them to areas where there are fewer of.

Investigate the process of diffusions between two substances Justify how the rate of diffusion can be affected by different factors Outcomes Explain how.

7 th Grade Science Week of October 18 Science Starters.

Movement of Substances

Roots and Stems.

CELLULAR TRANSPORT.

Lesson 7 Terms and Definitions PART 1

Cells and diffusion Make sure you revise:

Unit 3 Lesson 4 Transpiration and Translocation Systems

Active and Passive Transport

Exchange of materials Chapter review.

Passive Vs. Active Transport in Cells

Active Transport Notes

Place these features in the correct part of the Venn Diagram

Topic 6: Human Health and Physiology

What situations would diffusion not work to transport materials into or out of the cell? Low to high concentration diffusion would not work.

Active Transport Roots can absorb other minerals ions dissolved in soil even if their concentration is higher in the plant than in the soil water. Absorbing.

Absorption of Nutrients

1.4: How Organisms Take in Substances

BIOLOGY Unit 2 Notes: Cell Membrane Transport

Place these features in the correct part of the Venn Diagram

Cell Structure 4A - Membranes.

Movement In and Out of Cells

Place these features in the correct part of the Venn Diagram

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

HUMAN AND SOCIAL BIOLOGY Movement of Substances

Villus structure and function

Cells, tissues and organs

Movement in and out of cells

OSMOSIS AND DIFFUSION.

Topic – Transport in cells

Unit Animal Science.

Starter: Select the ions from this list:

Presentation transcript:

Active Transport Noadswood Science, 2012

Active Transport Wednesday, April 26, 2017 To understand what active transport is and how it works

Active Transport Active transport allows for substances to be absorbed against a concentration gradient (from a lower to higher concentration) It occurs in the root hair cells to absorb water and minerals and in the gut (which takes a low concentration of nutrients and passes them into the blood which has a high concentration of nutrients)

Villi The inside of the small intestine is covered in millions of tiny projections known as villi They increase the surface area allowing for digested food to be absorbed quickly into the blood (absorbed via active transport)

Root Hair Cells Root hair cells are specialised for absorbing water and minerals via active transport The concentration of minerals is usually higher in the root hair than in the soil so active transport, requiring energy, moves the materials from an area of low concentration to high concentration