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Questions and Answers
What is the study of the interactions between organisms and their environment called?
What is the study of the interactions between organisms and their environment called?
What is the level of organization that consists of a group of similar cells performing a specific function?
What is the level of organization that consists of a group of similar cells performing a specific function?
What is the process by which cells generate energy from glucose?
What is the process by which cells generate energy from glucose?
Study Notes
Definition and Scope
- Biology is the scientific study of life and living organisms
- It encompasses the structure, function, growth, evolution, distribution, and taxonomy of all living things
Branches of Biology
- Botany: study of plants
- Zoology: study of animals
- Microbiology: study of microorganisms
- Ecology: study of interactions between organisms and their environment
- Genetics: study of heredity and variation
- Biochemistry: study of chemical processes in living organisms
- Molecular biology: study of biological molecules and their interactions
- Biophysics: study of physical principles underlying biological processes
Levels of Organization
- Molecule: basic building blocks of life (e.g. DNA, proteins, carbohydrates)
- Cell: basic structural and functional unit of life
- Tissue: group of similar cells performing a specific function
- Organ: structure composed of two or more types of tissues
- Organ system: group of organs working together to perform a specific function
- Organism: individual living thing
- Population: group of organisms of the same species living in a specific area
- Community: group of different species living in a specific area
- Ecosystem: community of organisms and their environment
- Biosphere: all ecosystems on Earth
Biological Processes
- Metabolism: chemical reactions that occur within cells
- Homeostasis: maintenance of a stable internal environment
- Photosynthesis: process by which plants convert light energy into chemical energy
- Respiration: process by which cells generate energy from glucose
- Mitosis: process of cell division
- Meiosis: process of gamete formation
- Evolution: change in species over time through genetic variation and natural selection
Biological Molecules
- Carbohydrates: energy-rich molecules (e.g. sugars, starches)
- Proteins: molecules that perform a wide range of functions (e.g. enzymes, hormones)
- Nucleic acids: molecules that contain genetic information (e.g. DNA, RNA)
- Lipids: molecules that provide energy and structure (e.g. fats, oils)
- ATP: molecule that provides energy for cellular processes
Definition and Scope of Biology
- Biology is the scientific study of life and living organisms
- It encompasses the structure, function, growth, evolution, distribution, and taxonomy of all living things
Branches of Biology
- Botany is the study of plants
- Zoology is the study of animals
- Microbiology is the study of microorganisms
- Ecology is the study of interactions between organisms and their environment
- Genetics is the study of heredity and variation
- Biochemistry is the study of chemical processes in living organisms
- Molecular biology is the study of biological molecules and their interactions
- Biophysics is the study of physical principles underlying biological processes
Levels of Organization
- Molecules are the basic building blocks of life, including DNA, proteins, and carbohydrates
- Cells are the basic structural and functional unit of life
- Tissues are groups of similar cells performing a specific function
- Organs are structures composed of two or more types of tissues
- Organ systems are groups of organs working together to perform a specific function
- Organisms are individual living things
- Populations are groups of organisms of the same species living in a specific area
- Communities are groups of different species living in a specific area
- Ecosystems are communities of organisms and their environment
- The biosphere is all ecosystems on Earth
Biological Processes
- Metabolism involves chemical reactions that occur within cells
- Homeostasis is the maintenance of a stable internal environment
- Photosynthesis is the process by which plants convert light energy into chemical energy
- Respiration is the process by which cells generate energy from glucose
- Mitosis is the process of cell division
- Meiosis is the process of gamete formation
- Evolution is the change in species over time through genetic variation and natural selection
Biological Molecules
- Carbohydrates are energy-rich molecules, including sugars and starches
- Proteins are molecules that perform a wide range of functions, including enzymes and hormones
- Nucleic acids are molecules that contain genetic information, including DNA and RNA
- Lipids are molecules that provide energy and structure, including fats and oils
- ATP is a molecule that provides energy for cellular processes
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Description
Explore the definition and scope of biology, including its branches such as botany, zoology, and microbiology. Learn about the study of life and living organisms.
