Cambridge igcse biology extended level l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 20

Cambridge IGCSE Biology Extended Level PowerPoint PPT Presentation


  • 322 Views
  • Uploaded on
  • Presentation posted in: General

Click Biology. Cambridge IGCSE Biology Extended Level. Cells. You should be able to:. Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts. Describe the difference between animal cells and plant cells.

Download Presentation

Cambridge IGCSE Biology Extended Level

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Cambridge igcse biology extended level l.jpg

ClickBiology

Cambridge IGCSE BiologyExtended Level

Cells


You should be able to l.jpg

You should be able to:

  • Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts.

  • Describe the difference between animal cells and plant cells.

  • Explain the structure and function of specialised cells: red blood cell, muscle cells, ciliated cells, xylem vessels and root hair cells.

  • Define the terms tissue, organ and organ systems, with examples.


A section through a liver cell animal cell l.jpg

cell membrane

nucleus

cytoplasm

DNA

A section through a liver cell (animal cell):

controls what enters and leaves the cell

contains the DNA and so controls the cell

metabolic (chemical) reactions occur here

contains the coded instructions to make proteins


Section through a palisade cell of a leaf plant cell l.jpg

chloroplast

large sap vacuole

cellulose cell wall

Section through a palisade cell of a leaf (plant cell)

cell membrane

nucleus

cytoplasm


You should be able to5 l.jpg

You should be able to:

  • Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts.

  • Describe the difference between animal cells and plant cells.

  • Explain the structure and function of specialised cells: red blood cell, muscle cells, ciliated cells, xylem vessels and root hair cells.

  • Define the terms tissue, organ and organ systems, with examples.


Comparing animal and plant cells l.jpg

Comparing animal and plant cells


You should be able to7 l.jpg

You should be able to:

  • Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts.

  • Describe the difference between animal cells and plant cells.

  • Explain the structure and function of specialised cells: red blood cell, muscle cells, ciliated cells, xylem vessels and root hair cells.

  • Define the terms tissue, organ and organ systems, with examples.


Red blood cells transport oxygen l.jpg

Red blood cells transport oxygen

cytoplasm contains no nucleus

cell surface membrane

allows more room for haemoglobin

cytoplasm contains haemoglobin

haemoglobin is a protein which carries the oxygen molecules

bi-concave disc shape

increases surface area over which absorption of oxygen can occur


Muscle cells contract and enable movement of the body l.jpg

cell surface membrane

nucleus

protein strands

Muscle cells contract and enable movement of the body

muscle

Muscle cells have many nuclei

The strands of protein slide over each other making the muscle cell (fibre) shorter and causing the muscle to contract


Ciliated cells move bacteria and dust away from the lungs l.jpg

Ciliated cells move bacteria and dust away from the lungs

cilia

Cilia are small extensions of the cell. They beat rhythmically to sweep mucus, which has trapped bacteria and dust, away from the lungs

nucleus

magnification X3000


Xylem vessels transport water and minerals up the plant l.jpg

Xylem vessels transport water and minerals up the plant

xylem vessels are continuous tubes

xylem vessel

no cytoplasm

hollow: allows for continuous flow of water and dissolved mineral ions

lignin

water-proof and strong;

helps support the plant

longitudinal section

cross-section


Root hair cells absorb minerals and water from the soil l.jpg

Root hair cells absorb minerals and water from the soil

Cross-section of a root hair cell

cell membrane

semi-permeable, so will allow water and mineral ions into the cell

cytoplasm

contains no chloroplasts as no photosynthesis is needed

root hair cell

increases surface area for absorption of water and mineral ions


You should be able to13 l.jpg

You should be able to:

  • Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts.

  • Describe the difference between animal cells and plant cells.

  • Explain the structure and function of specialised cells: red blood cell, muscle cells, ciliated cells, xylem vessels and root hair cells.

  • Define the terms tissue, organ and organ systems, with examples.


A tissue is a group of cell of similar structure that form a shared function l.jpg

Animal tissues:

Tissues found in the leaf

muscle tissue

nervous tissue

upper epidermal

tissue

palisade mesophyll

tissue

spongy mesophyll tissue

lower epidermal

tissue

Cross-section of a leaf

A tissue is a group of cell of similar structure that form a shared function


An organ is a structure made of a group of tissues working together to perform specific functions l.jpg

An organ is a structure made of a group of tissues working together to perform specific functions

Plant organs include the stem and the leaves

heart

liver

lungs

stomach

kidneys

brain


An organ system is a group of organs that coordinate to perform related functions l.jpg

An organ system is a group of organs that coordinate to perform related functions

In plants the shoot is an organ system consisting of leaves and the stem

lymphatic

system

digestive

system

endocrine

system

reproductive

system

skeletal

system

circulatory

system

respiratory

system

excretory

system

muscular

system

nervous

system


Levels of organisation l.jpg

largest

smallest

Levels of organisation

organ

systems

cell

tissue

organ

organism

nerve cell

nervous tissue

brain

nervous

system

Homo sapiens


Now you should be able to l.jpg

Now you should be able to:

  • Identify and describe the structure of plant cells and animal cells, and describe the functions of their parts.

  • Describe the difference between animal cells and plant cells.

  • Explain the structure and function of specialised cells: red blood cell, muscle cells, ciliated cells, xylem vessels and root hair cells.

  • Define the terms tissue, organ and organ systems, with examples.


Now write down everything you remember from the video l.jpg

Now write down everything you remember from the video

  • Don’t refer to your text book straight away, see what information you have retained.

  • Check the notes you have made by re-watching the video or checking your book


Edexcel as level biology l.jpg

Edexcel AS Level Biology

ClickBiology

Next video:

Transport into and out of the cell

(diffusion, osmosis and active transport)


  • Login