* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download cells_specialisation_and_tissue File
Survey
Document related concepts
Signal transduction wikipedia , lookup
Cytoplasmic streaming wikipedia , lookup
Cell membrane wikipedia , lookup
Biochemical switches in the cell cycle wikipedia , lookup
Cell nucleus wikipedia , lookup
Cell encapsulation wikipedia , lookup
Endomembrane system wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cellular differentiation wikipedia , lookup
Tissue engineering wikipedia , lookup
Programmed cell death wikipedia , lookup
Cell growth wikipedia , lookup
Cell culture wikipedia , lookup
Cytokinesis wikipedia , lookup
Transcript
Hello! My name is Nick ...and my name is Nicky thethe nucleus I will be one of nucleus andand I will be your your guides during topic. other guide during thisthis topic. Cell specialisation Tissue E-SPLATT previous next smart How are these cells well adapted to help them carry out their function? Nerve cell Sperm cell (these are not to scale) The nerve cell is long and thin so that it can carry messages to different parts of the body. The sperm cell has to be able to move through the uterus and oviduct to fertilise the egg previous next smart Are these plant or animal cells? cell walls vacuoles chloroplasts This is a leaf cell This is a root hair cell How do their shape and contents help them to carry out their function? previous next smart previous next smart How do cells grow and make copies of themselves? 1 The nucleus copies itself 2 The nuclei move to opposite ends of the cell and the cell starts to pinch in the middle 3 The cell prepares to divide 4 Two new cells are produced which are identical to the first cell previous next smart A group of identical cells are called TISSUE. Tissue cultures can be grown from single cells How might doctors be able to make use of tissue cultures? A single animal cell Identical are produced Tissue iscells now growing previous next smart Growing tissue for a useful purpose. Step 1 make a mesh in the shape of a human ear Step 2 grow mouse cells as the mesh dissolves Step 3 transplant the ear onto a mouse Step 4 transfer the idea to human beings? previous next smart Can you name What do these these tissue types? tissues do??? Tissue Plant/animal Function (job) water and minerals xylem plant Carries from the roots to the leaves Carries oxygen, carbon dioxide o ld b o animal and chemicals around the body the body and stops i nks animal Protects harmful things from getting in food dissolved in m e l o ph plant Carries water around the plant nervous tissue animal To carry messages bone animal To give support sum c e l animal To help us move previous next smart Teacher instructions previous next smart 1. It is long and carries messages to different parts of the body. tissue leaf cell root hair nucleus cell A B C D E F G H culture previous nerve cell cell division next smart heart 2. A group of cells of the same kind. nerve cell culture cell division A B C D E F G H heart previous leaf cell next tissue root hair nucleus cell smart 3 It is packed full of chloroplasts to trap light. nerve cell leaf cell tissue culture A B C D E F G H cell division previous root hair heart cell next nucleus smart 4 It produces a copy of itself as the first stage of growth. cell nerve cell culture heart division A B C D E F G H tissue previous leaf cell next root nucleus hair cell smart 5 This must happen for growth to take place. nerve cell culture cell division heart A B C D E F G H tissue previous leaf cell root hair nucleus cell next smart 6 A collection of tissues which work together as this organ cell nerve cell heart culture division A B C D E F G H tissue previous leaf cell root hair nucleus cell next smart That’s all for now. GOODBYE!!!!!! previous smart Light is absorbed by chloroplasts in this plant cell so that food can be made How is this cell designed for photosynthesis? •The cell is packed with chloroplasts. •The tall shape means there is a good chance of light hitting a chloroplast before reaching the bottom of the cell. Look at this leaf cell!! return Minerals are taken in by the root hair How is this plant cell well designed? •the cells grow into long hairs which stick out into the soil To the xylem which carries the minerals and water to the leaves minerals Look at this •This gives a large surface area for absorbing water and root hair cell!! minerals from the soil return By using it’s tail of course!!! How is this sperm cell going to reach the egg???????? return Instructions for E-SPLATT The idea of this series of six questions is that they can be used as a plenary at the end of each section of the work on cells. The question is asked and the answers appear. After the answers have finished moving they will eventually come to rest in the eight boxes which are labelled A-H. The winner is the first pupil to identify the correct letter each time. The winner can be determined in a number of ways. 1. The first person to shout out the correct letter. 2. The first person to put their hand up and give the correct answer. 3. The first person to hold up the correct letter from their cards. With this third option pupils could be given a printed copy of the work sheet which they can cut up before spreading the eight letters in front of them on the desk. The final way you could play the game just uses two sets of letters. Two pupils are chosen to play with the winner staying on and the loser passes their cards on to the next pupil who becomes the new challenger. The winner is the pupil who wins the final question. return worksheet A B C D E F G H previous cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job cell How it is suited to do the its job