Hindi Ko Alam:  Essay

Summary of Biology

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The World of Biology

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Biology – Study regarding Life

• • • • Your life arose much more than 3. 5 billion in years past First creatures (living things) were solitary celled Simply life on Earth for a lot of years Organisms changed with time (evolved)

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• New organisms came about from elderly kinds • Today you will discover millions of varieties • They will inhabit almost every region of Earth today

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Themes of Biology

• Cell framework and function • Stability and homeostasis • Reproduction and inheritance • Evolution • Interdependence of organisms • Matter, energy, and organization 5

Cellular Structure and performance

• Cell basic device of your life • All organisms are constructed of and develop from cellular material • Some composed of just a single cellular (unicellular) which is usually identical to father or mother

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Cells

• Most creatures are composed of many cells (multicellular) – Cells are different (undergo differentiation) • Cells are small • Cells are really organized

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• Cellular material contain specific structures (organelles) that accomplish the cell's life processes • Many different types of skin cells exist • All cellular material surrounded by a plasma membrane layer • Contain a set of guidelines called GENETICS (genetic information) 8

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Stability and Homeostasis

• Organisms need to Maintain really steady internal circumstances - HOMEOSTASIS • Temperatures, water content, chemical content, etc . should be maintained

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Reproduction and Inheritance

• All creatures produce fresh organisms just like themselves RECREATE • Creatures transmit genetic information with their offspring GIFT OF MONEY

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DNA

• Genetic Data in all cells • Deoxyribonucleic Acid • DNA contains instructions for traits GENETICS • Associated with structures and complex chemicals necessary for your life

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Duplication

• Most species can reproduce – Not important to survival of individual but is essential for continuation of any species

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Sex Reproduction

• Hereditary information from two different organisms of the same species are put together

• Egg and ejaculate � zygote (fertilized egg)

• Zygote contains genetic information via both father and mother

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Asexual Reproduction

• Hereditary information from one, generally unicellular, affected person that splits ( binary fission) • Resulting skin cells contain similar hereditary info • Genetic information coming from single father or mother

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Growth

• Grow happens as the consequence of cell split and cellular enlargement • Cell department is the creation of two cells via a current cell • New cells enlarge because they mature • When a cellular grows to a size exactly where its area isn't not too young for its amount, Copyright Cmassengale volume the cell divides 15

Development

• The task by which a grownup organism happen is called expansion – Repeated cell partitions and cellular differentiation

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Matter, Energy and Organization

• Living things are really organized • Require a regular supply of energy to maintain all their orderly state

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• In multicellular organisms, cellular material and sets of cells (tissues) are prepared by their function – Cellular material � tissues – Cells � organs – Organs � devices – Devices � – ORGANISM 18

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Strength Use

• Use energy in a procedure called metabolic rate – Total of all chemical processes • Require strength to maintain all their molecular and cellular firm, grow and reproduce

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Energy

• ALL energy comes from direct sunlight (directly or perhaps indirectly) • Photosynthesis is the process by which some microorganisms capture the power from the sunlight (solar) and transform it into energy (chemical) that can be used simply by living things

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Autotrophs

• Microorganisms that make their particular food these are known as autotrophs • Phototrophs – use solar powered energy (photosynthesis) to get energy • Convert H2O and CO2 into...



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