Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 391 views

    Science Form 1 Chapter 2 Powerpoint Slides

    Uploaded by

    ADAM LOH
    Science Form 1 Chapter 1 KSSM Notes If you are interested in the powerpoint slides in ppt.version, do feel free to contact me. We can discuss about this.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Science Form 1 Chapter 2 Powerpoint Slides

    Uploaded by

    ADAM LOH
    391 views124 pages
    Science Form 1 Chapter 1 KSSM Notes If you are interested in the powerpoint slides in ppt.version, do feel free to contact me. We can discuss about this.

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    Science Form 1 Chapter 1 KSSM Notes If you are interested in the powerpoint slides in ppt.version, do feel free to contact me. We can discuss about this.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    391 views124 pages

    Science Form 1 Chapter 2 Powerpoint Slides

    Uploaded by

    ADAM LOH
    Science Form 1 Chapter 1 KSSM Notes If you are interested in the powerpoint slides in ppt.version, do feel free to contact me. We can discuss about this.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 124

    CHAPTER 2

    CELL AS THE BASIC UNIT OF LIFE


    BIOLOGY
    CONTENT (PAGE 1)

    1. Cell
    2. Cell Organisations
    3. Cell Specialisation
    4. Cell Respiration
    5. Cell Photosynthesis
    6. Chapter Review (Next Week)
    CELL
    PAGE 2 - 4
    CELL

    Prokaryote Eukaryote
    • Comes from Greek • Comes from Greek
    Pro – before Eu – good/well
    Karyon – nut/kernel Karyon – nut/kernel

    • a type of cell that does • any cell or organism


    not have a true nucleus that possesses a clearly
    or membrane-bound defined nucleus
    organelles.
    CELL
    CELL
    CELL

    Prokaryote Eukaryote
    • Bacteria • Animal cell
    • Plant cell
    VIRUS

    • What do you think about virus?


    • Is it a prokaryote or eukaryote?
    • Neither eukaryote nor prokaryote
    • Non-living thing
    • Not a cell

    • More like a code 程序 that alter other cell acitivty


    EUKARYOTIC CELL

    Animal cell Plant cell


    ANIMAL CELL
    ANIMAL CELL
    ANIMAL CELL
    ANIMAL CELL
    PLANT CELL
    PLANT CELL
    PLANT CELL
    ORGANELLES (PAGE 2)

    • Nucleus
    • Cytoplasm
    • Mitochondrion
    • Cell membrane/ Plasma Membrane
    • Cell wall
    • Vacuole
    • Chloroplast
    • Lysosome
    • Golgi apparatus
    • Endoplasmic reticulum
    • Ribosome
    NUCLEUS

    • Control cell activities


    • Contain DNA
    CYTOPLASM

    • Mainly compose of water, salts and proteins.


    • A medium for chemical reactions to occur
    MITOCHONDRION (SINGULAR)
    MITOCHONDRIA (PLURAL)
    • Has folded inner-membrane – to increase surface
    area 面积 for cellular respiration
    • To produce energy through cellular respiration.
    CELL MEMBRANE

    • Membrane = boundary/layer
    • thin layer that forms the outer boundary of a living
    cell or of an internal cell compartment.

    • Semi（一半）-permeable （ 透水）

    • To control movement of substance in and out of the


    cell.
    CELL WALL

    • Made of cellulose (纤维素)

    • Fully-permeable

    • Rigid and has a fixed shape

    • To maintain cell shape


    VACUOLE

    • Provide support for cell when filled with cell sap.

    • Cell sap – fluid in vacuole, contain food, waste


    materials, salts and other compound.
    CHLOROPLAST

    • Contain green pigment called chlorophyll.

    • Carry out photosynthesis through absorption of light.


    RIBOSOME

    • To synthesize protein
    LYSOSOME

    • Comes from Greek word


    • Lysis – destroy/dissolve
    • Soma – body

    • To digest unwanted substance


    • To digest food
    • To digest worn out organelles
    ENDOPLASMIC RETICULUM

    • Rough endoplasmic reticulum (surfaced with


    ribosomes)
    Transport protein synthesised/made by ribosomes

    • Smooth endoplasmic reticulum (no ribosome)


    Synthesise/make lipid and steroids.
    GOLGI APPARATUS

    • Process, modify and pack proteins and lipid


    molecules.

    • Very important for modification of enzymatic


    activity
    OVERALL CELLULAR ACTIVITY
    • Different cells have different components.

    • Not all cell have same amount of organelles.

    • Some organelles are found abundant （很多） in


    certain cells. (will be discussed later)
    DIFFERENCE (PAGE 2)

    • Think about main features(主要特点).


    Chloroplast
    Cell wall
    Shape
    vacuole

    • Think about functions.


    Photosynthesis
    SIMILARITIES (PAGE 2)

    • Think about main features(主要特点).


    Nucleus
    Cell membrane
    Cytoplasm
    Mitochondrion

    • Think about functions.


    Respiration
    Cell division (mitosis)
    END OF ORGANELLES IN CELL
    CELL AND THEIR FUNCTIONS
    PAGE 3
    ANIMAL CELL
    PLANT CELL
    ANIMAL CELL (PAGE 3)
    ANIMAL CELL

    1. Epithelium cell
    2. Nerve cell
    3. Red blood cell
    4. Muscle cell
    5. Reproductive cell
    6. White blood cell
    EPITHELIUM CELL

    • Form layer to protect internal organ

    • Secrete mucus (粘液)

    • Mucus
    keep the surface moist
    Contain acid that kill microorganism
    NERVE CELL

    • Carry information in the form of impulse to all parts


    of the body.

    • Large nucleus
    RED BLOOD CELL (ERYTHROCYTE)

    • To transport oxygen

    • Transport carbon dioxide from cells in all parts of the


    body to the lungs.

    • Contain haemoglobin - to transport oxygen


    • Does not have nucleus
    • Have biconcave disc shape – to increase surface
    area
    HAEMOGLOBIN
    RBC CAN BOND WITH 4 OXYGEN
    MOLECULE ONLY
    MUSCLE CELL

    • Contract and relax to enable movement

    • Has abundant/large amount of mitochondria


    REPRODUCTIVE CELLS

    • Carry genetic materials

    • Male reproductive cell


    Smallest cell
    Contain abundant/large amount of mitochondrion.

    • Female reproductive cell


    Largest cell
    REPRODUCTIVE CELL

    • To be discussed more detail in


    Chapter 4: Reproduction
    WHITE BLOOD CELL (LEUCOCYTE)

    • To kill bacteria
    WHERE DOES ALL THESE CELLS COME
    FROM?
    • Your skin
    • Your lining of stomach

    • RBC
    • WBC

    • Musclesssss
    ALL THANKS TO
    CELL SPECIALISATION
    PLANT CELL (PAGE 3)
    PLANT CELL

    1. Epidermal cells
    2. Palisade cells
    3. Guard cells
    4. Root hair cells
    5. Xylem vessel
    6. Phloem vessel
    EPIDERMAL CELL

    • Contain cuticle (waxy substance)

    • Reduce water loss


    • Allow gaseous exchange (discuss further later)
    • Allow absorption of water and nutrients.
    PALISADE CELLS

    • Contain large amount of chlorophyll


    • Stick to the surface for maximum amount of
    exposure to sunlight for photosynthesis

    • Contain chlorophyll to absorb sunlight to carry out


    photosynthesis
    GUARD CELL
    GUARD CELL
    GUARD CELL

    • Contain large vacuole


    • Contain more mitochondria for active transport

    • Control the opening and closing of stomata

    • Details in Chapter 3
    XYLEM

    • Made up of mainly dead cells


    • Contain no cytoplasm

    • To transport water and mineral salt


    PHLOEM

    • -

    • To transport food substance


    PHLOEM VESSEL
    XYLEM AND PHLOEM
    ROOT HAIR CELLS

    • More mitochondria for active transport.

    • Increase surface area to absorb more water and


    nutrient from the soil.
    CELL SPECIALISATION IN PLANT
    END OF CELLS AND THEIR FUNCTION
    TYPE OF ORGANISMS
    PAGE 4
    PAGE 4
    ORGANISM

    • Unicellular organism
    Organisms that consist of only one cell

    • Multicellular organism
    Organisms that consist of more than one cell
    AMOEBA

    • Animal kingdom
    • Unicellular organism
    PARAMECIUM

    • Animal kingdom
    • Unicellular organism
    EUGLENA

    • Plant kingdom
    • Unicellular organism
    CHLYMODOMONAS

    • Plant kingdom
    • Unicellular organism
    MUCOR

    • Fungi kingdom
    • Multicellular organism
    PAGE 4
    SPIROGYRA

    • Plant kingdom
    • Multicellular organism
    HYDRA

    • Animal kingdom
    • Multicellular organism
    END OF TYPE OF ORGANISM
    CELL ORGANISATIONS
    PAGE 4 - 5
    ORDER (PAGE 4)
    ORDER

    • General statement

    • _______________ that work together to perform


    specific function.
    SYSTEMS (PAGE 5)
    ALL SYSTEMS
    ALL SYSTEMS
    ALL SYSTEMS
    ALL SYSTEMS
    ALL SYSTEMS
    END OF CELL ORGANISATIONS
    CELL RESPIRATION
    PAGE 6-7
    PAGE 6
    END OF CELL RESPIRATION
    CELL PHOTOSYNTHESIS
    PAGE 6-7
    PAGE 6
    PAGE 6
    PAGE 6
    END OF CELL PHOTOSYNTHESIS
    !!!!THE END!!!!
    PLEASE USE THE NOTES WISELY

    You might also like