group and control group‚ which are alike expect for the one variable that the experiment is designed to test. 16. Organism is to community as organ is to _______. 17. Which sequence lists organisms in the order of producer‚ consumer and decomposer? 3. A hypothesis must be testable and ________--there must be some observation or experiment that could show that it is not true 18. Which function below is performed by eukaryotic cells‚ but not prokaryotic cells? 4. ________ uses "if
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3. Describe the differences between animal and plant cells. Although plant and animal cells both have mitochondria‚ cytoplasm‚ and ribosomes they differ in many ways. Animal cells do not have a cell wall and are round with irregular shapes. Centrioles are also present in all animal cells‚ as well as most eukaryotic cells. Plant cells only have centrioles if they are in the lower plant species. Both types of cells have vacuoles‚ but their functions are quite different. The purpose of vacuoles in
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Prokaryotic cells are single celled organisms that were formed at the formation of the earth‚ so are the most basic life forms. The prokaryotes are organised in the ‘three domain system’ and include bacteria and blue-green algae. Prokaryotes live in many environments including extreme habitats such as hydrothermal vents‚ hot springs‚ swamps‚ wetlands‚ and the guts of animals. This is a diagram of a prokaryote cell and it shows that they are not very complex cells. They do not contain any membrane
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Eukaryotic and Prokaryotic Cells Prokaryotes refer to organisms with a cell nucleus or organelles that are membrane-bound. Some prokaryotes are multicellular while others are unicellular. Eukaryotes‚ on the other hand‚ refer to organisms whose cytoskeleton and internal membranes organize them into complex structures. Similarities The two types of cells contain the same genetic material and like all cells‚ they release energy through respiration in addition to making proteins similarly. The structure
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The Evolution of Eukaryotic Cells from Prokaryotic Cells DNA- Deoxyribonucleic acid (DNA)‚ a self-replicating material present in nearly all living organisms‚ is the acid that carries genetic information. RNA- Ribonucleic acid (RNA)‚ is an acid that is present in all living cells‚ it’s main role is to act as messenger and carry instructions from DNA fro controlling the synthesis of proteins. What are Eukaryotic Cells and Eukaryotic Organisms? A eukaryotic cell is a cell that contains complex
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Describe the key structures and functions of a eukaryotic and prokaryotic cell. Eukaryotic Cell (1) There are many organelles in the eukaryotic cell micrograph above. Some of these organelles are displayed in the prokaryotic micrograph and so‚ I have described the shared organelles in the prokaryotic micrograph section. Mitochondria The mitochondria cells break down nutrients which then creates energy. They act like a digestive system. This process is called cellular respiration. The
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chromatin‚ binary fission‚ homologous chromosomes‚ sister chromatids‚ daughter chromosomes‚ somatic cells‚ gametes‚ centromere‚ kinetochore‚ karyokinesis‚ spindle fibers‚ kinetochore microtubules‚ nonkinetochore microbules‚ centrosome‚ asters 2. List differences between eukaryotic and prokaryotic genome. 3. A chromosome consists of ____ (60%) and ____ (40%). 4. Describe the phases of the cell cycle and the events that occur in each. a. Interphase 1. G1
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Schuenzel February 13‚ 2014 Bacterial and Eukaryotic Cell Structures All organisms are composed of cells which are characteristically microscope in size. Cell size is limited by the efficiency of diffusion across the plasma membrane. A typical eukaryotic cell is 10 to 100 micrometers in diameter opposed to prokaryotic cells are 1 to 10 micrometers in diameter. Bacterial and Eukaryotic cells display different cell organization in their size and structure‚ but despite this all they display basic structural
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The prokaryotic cell precedes any forms of Bacteria‚ Archaea‚ and eventually Eukaryotes by approximately two billion years. This cell was the original life form on the planet and represents the smallest and least complex of all organisms. Through the process of mutation and adaptation they were able to survive to evolve into our modern day Bacteria‚ Archaea‚ Fungi and Protists. These post organisms have benefited from their early ancestor‚ by way of Endosymbiosis. Intricate protest and fungi are
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“Cells are the basic building blocks of all living things” (Genetics Home Reference‚ 2015)‚ cells are the smallest unit that is capable of performing life functions. They are responsible for the conversion of nutrients from food into energy‚ the structure of the body and perform specialised functions for each different organelle. There are two main types of cells‚ Prokaryotic and Eukaryotic. The Prokaryotic (see appendix one) is a single-celled organism without a membrane-bound structure‚ meaning
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