AP Biology Essay Questions UNIT 1 1. The unique properties (characteristics) of water make life possible on Earth. Select three properties of water and: a. for each property‚ identify and define the property and explain it in terms of the physical/chemical nature of water. b. for each property‚ describe one example of how the property affects the functioning of living organisms. UNIT 2 Describe the chemical composition and configuration of enzymes and discuss the factors that
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the largest and most prominent organelle in the cell. It is usually spherical and about 10um in diameter. It contains the DNA and chromosomes and carries information that allows the cell to divide and carry out its cellular processes. Almost all eukaryote cells have a nucleus. The nucleolus is located in the nucleus it is 1-2 um. Its function is to manufacture ribosomes. The ribosomes are found either free in the cytoplasm or attached to the rough endoplasmic reticulum R.E.R‚ They are 20nm in size
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Chapter 1. Microbiology – Diversity of Organisms Microorganisms- too small to be seen with the unaided eye “germ”- rapidly growing cell Microbes in our lives Pathogenic- disease causing Decompose organic waste Producers in ecosystem (photosynthesis) Produce industrial chemicals such as ethanol and acetone Produce fermented foods ( vinegar‚ cheese‚ bread) Produce products used in manufacturing (cellulose) and treatment (insulin) Designer Jeans: Made by Microbes? Stone washing- Tricoderma
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The social amoeba Dictyostelium discoideum is an interesting microbe that has used as a powerful model organism for biomedical and pharmacological studies. This eukaryote model‚ which has been used to study basic cell function and multicellular development‚ undergoes a 24-h asexual life cycle comprised of both single-cell and multicellular phases. As a result‚ it is an excellent system for studying a variety of cellular and developmental processes such as‚ chemotaxsis‚ lysosome function and signaling
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developed more than three billion years ago (as the Earth is believed to be about 4.5 billion years old).It explains how species are formed. 3‚500‚000‚000 years ago-First bacteria (prokaryotes) 2‚000‚000‚000 years ago-First cells with organelles (eukaryotes) 1‚000‚000‚000 years ago-First multicellular organisms: algae‚ seaweeds‚ sponges‚ jellyfish worms 500‚000‚000 years ago-First fish 450‚000‚000 years ago-First land plants and fungi 390‚000‚000 years ago-First amphibians‚ insects and reptiles
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IntroductionThe concept of this lab is producing a replica of an animal cell‚ and a plant cell. Producing the models of the cells helps to provide a better understanding of each cell and its contents also‚ to explore thedifferences between prokaryotes and eukaryotes. Cell theory states that all cells reproduce new cells‚while passing their genetic information. In addition‚ cells make up all living things‚ metabolize energyand that the chemical make-up of cells is similar. The objectives for this lab are to
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Associate Program Material Levels of Life Worksheet Complete all three parts of this worksheet. Part I: Atomic Structure – Fill in the missing information on atomic structure and organic compounds. |Atomic Structure | |Subatomic Particle |Charge |Location in an Atom | |Proton
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Unicellular organism From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search "Single-celled" redirects here. For prison cell assignment‚ see Single-celling. Valonia ventricosa is among the largest unicellular species. A unicellular organism‚ also known as a single-celled organism‚ is an organism that consists of only one cell‚ unlike a multicellular organism that consists of multiple cells. Historically the simple single celled organisms have sometimes been referred to as monads
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The nucleus is the most obvious organelle in a eukaryotic cell. Virtually all eukaryote cells have a nucleus (red blood cells lose theirs and so are enucleate for most of their life-span of 180 days). It is surrounded by the nuclear envelope‚ a double membrane with contains a large number of pores. Molecules enter and leave the nucleus by these pores. The two lipid bilayers of the double membrane are separated by a gap of 20 to 40 nm‚ called the perinuclear space. The nucleus contains the cell’s
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CDC1 Study Questions LIVING ORGANISMS CELLULAR CHEMISTRY CELL BIOLOGY GENETICS PLANT BIOLOGY INVERTEBRATES AND VERTEBRATES ECOLOGY LIVING ORGANISMS CLASSIFICATION Compare and contrast living and nonliving things. What is biology? The study of living things (science of life) Describe characteristics found in all living organisms. * Living things are made of cells. * Living things obtain and use energy. * Living things grow and develop. * Living things reproduce
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