TEKS Grade 7 Science - 7.12.F Cell Theory
Quiz by Texas Education Agency
Grade 7
Science (2017)
Texas Essential Knowledge and Skills (TEKS)
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5 questions
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- Q1In 1838 botanist Matthias Schleiden determined that all plants are composed of cells. In 1839 anatomist Theodor Schwann proposed that all animals are composed of cells. In 1855 biologist Rudolph Virchow added to Schleiden’s and Schwann’s observations and proposed that all living things are composed of cells. Which statement is also part of Virchow’s cell theory?All cells have a cell wall.All cells can develop into any other type of cell.All cells are capable of photosynthesis.All cells arise from pre-existing cells.60s7.12f
- Q2In the 1800s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations. What statement was developed most directly from these conclusions and is part of the modern cell theory?Cells exist only in multicellular organisms.Living things are composed of cells.Cells contain hereditary information.The functions of living things occur in cells.60s7.12f
- Q3Prokaryote meansbefore a nucleustwo nucleitrue nucleuswith a nucleus60s7.12f
- Q4All cells have these in common EXCEPTcell membranecytoplasmDNAnucleus60s7.12f
- Q5The Cell Theory states:all living things are made of two or more cellsall living things are not made of cellsall living things are made of one or more cells60s7.12f
