Jaringan Pada Hewan – ada tubuh hewan tungkat tinggi (Vertebrata) terdapat berbagai macam jaringan yang dapat dikelompokkan menjadi jaringan merismatik, jaringan epithelium, jaringan ikat, jaringan otot, dan jaringan saraf.
a. Jaringan Meristematik
Jaringan meristematik adalah jaringan yang sel-selnya selalu membelah. Jaringan ini terdapat pada fase embrio. Pada tubuh manusia dan hewan vertebrata, jaringan meristematik terdapat hanya pada bagian tertentu. Misalnya, pada ujung tulang pipa yang masih muda dan pada sumsum tulang belakang yang membentuk sel-sel darah.
b. Jaringan Epitel atau Jaringan Kulit
Jaringan epitel merupakan jaringan yang menutupi jaringan lain. Jaringan ini meliputi epitel sederhana dan epitel berlapis. Jaringan epitel sederhana hanya terdiri dari satu lapis sel. Contohnya adalah jaringan epitel pipa sebelah dalam. Jaringan epitel berlapis terdiri atas beberapa lapis sel. Contohnya epitel usus dan saluran pernafasan. Jaringan epitel ada yang bersilia, misalnya pada saluran pernafasan. Silia tersebut berguna untuk menerima rangsangan dari luar, misalnya jika ada debu kita akan bersin. Epitel yang berada di luar tubuh biasanya disebut epidermis (epi = tepi, dan derm = kulit) misalnya pada kulit. Sebaiknya, epitel yang menutupi bagian dalam organ tubuh disebut endodermis.
c. Jaringan Ikat
Jaringan ikat merupakan jaringan yang menghubungkan antara jaringan yang satu dengan jaringan yang lain. Fungsi jaringan ikat antara lain sebagai berikut :
Kamis, 27 Oktober 2011
Kamis, 06 Oktober 2011
Jaringan Pada Hewan –
Jaringan Pada Hewan – ada tubuh hewan tungkat tinggi (Vertebrata) terdapat berbagai macam jaringan yang dapat dikelompokkan menjadi jaringan merismatik, jaringan epithelium, jaringan ikat, jaringan otot, dan jaringan saraf.
Kamis, 28 Juli 2011
Materi Kelas XI IPA--
Berikut ini adalah link download materi mapel IPa biologi kelas XI semester gasal...
silahkan download... ^^
- STRUKTUR DASAR DAN FUNGSI SEL
- JARINGAN TUMBUHAN
-3. JARINGAN HEWAN & MANUSIA
-4. DARAH & KOMPONENNYA
-5. ALAT PEREDARAN DARAH
-6. GANGGUAN SISTEM SIRKULASI
-7. SISTEM GERAK
-8. OTOT SEBAGAI ALAT GERAK
-9. KERANGKA TUBUH
-10. PERSENDIAN & TIPE GERAK
-11. GANGGUAN SISTEM GERAK
-12. SISTEM PENCERNAAN MAKANAN
-13. SISTEM RESPIRASI
-14. SISTEM EKSKRESI
-15. SISTEM KOORDINASI (SARAF, INDERA, DAN SISTEM HORMON)
-16.SISTEM REPRODUKSI
-17. SISTEM IMUNITAS
^^^^ SEMOGA BERGUNA... >_<^
silahkan download... ^^
- STRUKTUR DASAR DAN FUNGSI SEL
- JARINGAN TUMBUHAN
-3. JARINGAN HEWAN & MANUSIA
-4. DARAH & KOMPONENNYA
-5. ALAT PEREDARAN DARAH
-6. GANGGUAN SISTEM SIRKULASI
-7. SISTEM GERAK
-8. OTOT SEBAGAI ALAT GERAK
-9. KERANGKA TUBUH
-10. PERSENDIAN & TIPE GERAK
-11. GANGGUAN SISTEM GERAK
-12. SISTEM PENCERNAAN MAKANAN
-13. SISTEM RESPIRASI
-14. SISTEM EKSKRESI
-15. SISTEM KOORDINASI (SARAF, INDERA, DAN SISTEM HORMON)
-16.SISTEM REPRODUKSI
-17. SISTEM IMUNITAS
^^^^ SEMOGA BERGUNA... >_<^
Kamis, 21 Juli 2011
Bio0o0o0o0o0
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy.[1] Biology is a vast subject containing many subdivisions, topics, and disciplines. Among the most important topics are five unifying principles that can be said to be the fundamental axioms of modern biology:
Cells are the basic unit of life
New species and inherited traits are the product of evolution
Genes are the basic unit of heredity
An organism regulates its internal environment to maintain a stable and constant condition
Living organisms consume and transform energy.
Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues, organs, and organ systems of an organism; and ecology examines how various organisms interact and associate with their environment.
History
Main article: History of biology
Ernst Haeckel's Tree of Life (1879)
The term biology is derived from the Greek word βίος, bios, "life" and the suffix -λογία, -logia, "study of." It appears in German (as biologie) as early as 1791, and may be a back-formation from the older word amphibiology (meaning the study of amphibians) by deletion of the initial amphi-.
Although biology in its modern form is a relatively recent development, sciences related to and included within it have been studied since ancient times. Natural philosophy was studied as early as the ancient civilizations of Mesopotamia, Egypt, the Indian subcontinent, and China. However, the origins of modern biology and its approach to the study of nature are most often traced back to ancient Greece.[4] While the formal study of medicine dates back to Hippocrates (ca. 460 BC – ca. 370 BC), it was Aristotle (384 BC – 322 BC) who contributed most extensively to the development of biology. Especially important are his History of Animals and other works where he showed naturalist leanings, and later more empirical works that focused on biological causation and the diversity of life. Aristotle's successor at the Lyceum, Theophrastus, wrote a series of books on botany that survived as the most important contribution of antiquity to the plant sciences, even into the Middle Ages.
Cells are the basic unit of life
New species and inherited traits are the product of evolution
Genes are the basic unit of heredity
An organism regulates its internal environment to maintain a stable and constant condition
Living organisms consume and transform energy.
Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues, organs, and organ systems of an organism; and ecology examines how various organisms interact and associate with their environment.
History
Main article: History of biology
Ernst Haeckel's Tree of Life (1879)
The term biology is derived from the Greek word βίος, bios, "life" and the suffix -λογία, -logia, "study of." It appears in German (as biologie) as early as 1791, and may be a back-formation from the older word amphibiology (meaning the study of amphibians) by deletion of the initial amphi-.
Although biology in its modern form is a relatively recent development, sciences related to and included within it have been studied since ancient times. Natural philosophy was studied as early as the ancient civilizations of Mesopotamia, Egypt, the Indian subcontinent, and China. However, the origins of modern biology and its approach to the study of nature are most often traced back to ancient Greece.[4] While the formal study of medicine dates back to Hippocrates (ca. 460 BC – ca. 370 BC), it was Aristotle (384 BC – 322 BC) who contributed most extensively to the development of biology. Especially important are his History of Animals and other works where he showed naturalist leanings, and later more empirical works that focused on biological causation and the diversity of life. Aristotle's successor at the Lyceum, Theophrastus, wrote a series of books on botany that survived as the most important contribution of antiquity to the plant sciences, even into the Middle Ages.
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