U01 Basis Of Life

The basis of life CONTENTS RESOURCES

CONTENTS
Vital functions
Vital functions
Biomolecules Biomolecules Cells History of cell discovery Size and shape Structure and composition Types of cells Cellular nutrition Cellular nutrition Autotrophic nutrition Heterotrophic nutrition Photosynthesis Cell division Cell division Genetic material Mitosis THE BASIS OF LIFE Cellular respiration Cellular respiration

RESOURCES Vital functions Biomolecules History of cell discovery Types of cells Structure and composition of cells Cellular nutrition Autotrophic nutrition Heterotrophic nutrition Cell division Genetic material Mitosis Size and shape of cells Cellular respiration Photosynthesis Links Introducing cells

Vital functions VITAL FUNCTIONS Living beings NUTRITION INTERACTION REPRODUCTION

Vital functions NUTRITION Living beings obtain the matter and energy necessary for life. Autotrophic organisms inorganic matter organic matter Heterotrophic organisms Living beings GO BACK

Living beings Vital functions INTERACTION Living beings relate with their surrounding environment. Animals have receptors and effectors . Plants do not have receptors, but they can respond to stimuli. GO BACK

Vital functions REPRODUCTION New individual living beings are produced. Asexual reproduction: one parent Sexual reproduction: male and female parents Living beings GO BACK

water mineral salts Biomolecules calcium, iron, magnesium, etc. Organic molecules

History of cell discovery He was the first person to use the word “cell”. He discovered tiny organisms in a drop of water. 1675 Anthony van Leeuwenhoek microscope “ animacules” 1665 Robert Hooke microscope cork under a microscope

History of cell discovery 1838 Matthias J. Schleiden and Theodor Schwann CELL THEORY The cell is the structural and functional unit of all living things. 1855 Rudolf Virchow CELL THEORY All cells come from pre-existing cells.

microscope Size and shape of cells 1 micrometre ( μm) equals 0.001 millimetres (mm) cell

Structure and composition of cells Animal cell Plant cell 1 1 2 2 3 3 4 4 5 cell membrane cytoplasm nucleus cell membrane nucleus cell wall cytoplasm mitochondrion 1 Golgi body 2 vacuoles 3 rough ER 4 chloroplast 5 CLICK ON THE NUMBERS

Types of cells bacteria Prokaryotic cells The genetic material is loose in the cytoplasm. NEXT

Types of cells Animal cell Plant cell nucleus Eukaryotic cells The genetic material is enclosed in a nucleus.

Cellular nutrition Amoeba nutrients CATABOLISM ANABOLISM

Cellular nutrition CELLULAR METABOLISM Catabolism GO BACK complex organic substances simple substances energy

Cellular nutrition METABOLISM Anabolism CELLULAR METABOLISM complex organic substances simple substances energy GO BACK

Autotrophic nutrition 1 2 3 4 CLICK ON NUMBERS

sunlight O 2 H 2 O CO 2 mineral salts Autotrophic nutrition simple organic matter 1 Inorganic matter is taken in. GO BACK

O 2 Autotrophic nutrition simple organic matter 2 energy Catabolism GO BACK

CO 2 Autotrophic nutrition 3 Carbon dioxide is expelled. GO BACK

other functions Autotrophic nutrition complex organic matter energy simple organic matter Anabolism 4 GO BACK

Heterotrophic nutrition 1 2 3 4 CLICK ON NUMBERS

Heterotrophic nutrition 1 Organic matter is taken in. simple organic matter GO BACK

Heterotrophic nutrition 2 simple organic matter Catabolism O 2 H 2 O CO 2 energy GO BACK

Heterotrophic nutrition 3 Carbon dioxide is expelled. CO 2 GO BACK

Heterotrophic nutrition 4 simple organic matter Anabolism energy complex organic matter other functions GO BACK

organic matter oxygen mineral salts water sunlight carbon dioxide Photosynthesis CO 2 H 2 O O 2 sunlight carbon dioxide water mineral salts organic matter oxygen CHLOROPLAST

organic matter oxygen carbon dioxide water Cellular respiration CO 2 H 2 O O 2 energy MITOCHONDRION carbon dioxide water oxygen organic matter energy

Cell division parent cell UNICELLULAR ORGANISMS population growth MULTICELLULAR ORGANISMS growth daughter cells

Cell division spores Binary fission Multiple fission Budding Sporulation In fungi, algae, moss and ferns In some protozoa In yeast In bacteria and protozoa

Eukaryotic cell Genetic material chromatin Before cell division chromosomes Karyotype of a human being 46 chromosomes nucleus

Mitosis SEE PROCESS

Mitosis GO BACK

Links Introducing cells http://www.usoe.k12.ut.us/CURR/SCIENCE/sciber00/7th/cells/sciber/intro.htm Cell Inspector interactive activity http:// www.harcourtschool.com/activity/cell/cell.html Cells alive http://www.cellsalive.com/cells/3dcell.htm The virtual cell http://www.ibiblio.org/virtualcell/textbook/chapter3/chapter3.htm The Virtual Cell Textbook http://www.ibiblio.org/virtualcell/textbook/chapter2/chapter2.htm Cell growth and division http://www.biologycorner.com/bio1/

http://science2esoalkor.blogspot.com	84
http://science2esoalkor.blogspot.com.es	7
http://science2esoalkor.blogspot.in	4
http://science2esoalkor.blogspot.ca	2
http://science2esoalkor.blogspot.co.uk	1

U01 Basis Of Life

by Alkor on Jan 04, 2010

Accessibility

Categories

Upload Details

Usage Rights

5 Embeds 98

Statistics

U01 Basis Of Life — Presentation Transcript