1) Name the structures found in animal cells. 2) Name the two components of the cell membrane. 3) State the term that can be used to describe the structure of DNA. 4) Name the molecules described as 'biological catalysts'. 5) Name the structures found in plant cells. 6) State the term used to describe the fact the cell membrane only lets small soluble molecules pass through. 7) State the word used to describe the fact that certain bases always pair together. 8) Explain what enzymes do in cells. 9) Name three structures found in both animal and plant cells. 10) What does selectively permeable mean? 11) DNA carries the genetic information for making _________ 12) Name the substances that enzymes act on. 13) Name the molecule which is generated from breaking down glucose. 14) Give an example of a molecule that can pass through the cell membrane unaided. 15) Name the four DNA bases. 16) State the name given to the substances that enzyme action creates. 17) Give an example of a molecule that is too large to pass through the cell membrane unaided. 18) Describe the complementary base pairs in DNA. 19) What is the active site of the enzyme? 20) What is the cell wall composed of in plant cells? 21) What are diffusion and osmosis examples of? 22) Describe how the bases in DNA determine the structure of proteins. 23) State the name given to the the enzyme controlled reaction where large molecules are broken down to smaller ones. 24) Describe passive transport. 25) What is a gene? 26) Describe what happens in a synthesis reaction. 27) What is the function of the nucleus? 28) Give the definition for diffusion. 29) What is the function of mRNA? 30) Are enzymes changed or unchanged by their reaction. 31) Explain why diffusion is important. 32) Where is mRNA produced in the cell? 33) What other factor, apart from temperature, can affect the rate of a enzyme-controlled reaction? 34) What is the function of the cell membrane? 35) Give the definition for osmosis. 36) State the name of the building blocks that make up proteins. 37) Explain what denatured means. 38) Of the four cell types, which ones contain a cell membrane? 39) What is the function of the cytoplasm? 40) State the word used to describe what happens to an animal cell that has been placed in pure water. 41) Where are proteins synthesised in the cell? 42) List the five examples of the different functions of proteins. 43) State the word used to describe what happens to an animal cell that has been placed in a strong salt solution. 44) Name the base that pairs with Adenine 45) What does enzyme denaturation affect. 46) Of the four cell types, which ones contain a cell wall? 47) State the word used to describe what happens to a plant cell that has been placed in pure water. 48) Name the base that pairs with Cytosine 49) When catalase acts on the substrate hydrogen peroxide, what products are produced? 50) What is the function of the chloroplasts? 51) Name the form of cell membrane transport that requires energy. 52) The order of bases is important as it determines the order of which other molecule? 53) What is the function of the mitochondria? 54) Which cell structure does mRNA travel to when it leaves the nucleus? 55) What is the function of the ribosome? 56) Describe active transport. 57) What type of enzyme reaction involves phosphorylase? 58) The temperature or pH at which an enzyme works best is known as its _________

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