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In order to continue enjoying our site, we ask that you confirm your identity as a human. Thank you very much for your cooperation. A solid grasp of cell biology fundamentals is key to succeed in your biology exams. Learn everything you need to know right here. Imagine how, centuries ago, nobody knew the existence of our building blocks! To whom do we owe such breakthrough knowledge? Find these answers and more here when you review the Q&As on cell structure, cell membrane, cytoskeleton and cell movement, cell secretion, intracellular digestion, cell nucleus, cell division, photosynthesis, cellular respiration, and protein synthesis.These subjects are not only critical to know for your exams but will also prove key to your future success as a life sciences professional. These Q&As cover all cell structures: cell membrane, cytoplasm, nucleus, and cell organelles. Here you will find a complete Q&A review of membranes, diffusion, osmosis, transport across membranes, and, naturally, cell membranes. Did you know that every cell has a skeleton? Thats right! Study these Q&As to learn everything you need to know about cytoskeleton and cell movement. Hormones and other substances are products of cell secretion. This Q&A review is tailored to provide you all the details you need to know on this fascinating subject. Here you will learn about the function of lysosomes, the cell organelle responsible for intracellular digestion. The nucleus contains the commanding molecules of life. Learn everything you need to know about its structure and main properties by reviewing the Q&As found here. These processes are responsible for the very growth and reproduction of living organisms. Discover everything you want to know and more about the fascinating aspects of mitosis and meiosis. What if you could eat sunlight? Some living things actually do. Learn all about the absorbing process of photosynthesis. ATP synthetase is the molecular machine that uses the oxygen we breathe in to feed our cells. This Q&A takes a comprehensive look at this and all the phases of cell respiration. Want to learn more about the genetic code? It all stems from how proteins derive from DNA molecules. Explore it in action here. Choose a subject to learnStudy the sequence of Q&As from first to last Move on to the next Q&A once youve learned everything in the one you are studyingAfter the last one, review all Q&AsRemember to bookmark this page BTC: 3G1AGoAddUPYaLbTAo6hvKFnt7kNz4dXjzETH: 0x256e8a87ab9c5f879696dadf6cdbd37613d9ffacDOGE: DEKXxbY9FFP56y7sdyzBvTSRPbP5h1RU2pLTC: MLA9BuoUYK4PKnwxmKR5r1z8f2mKdAa7vfXMR: 46k6hLyn4dtWJbABdtt3ms1GnNJSwBG2g9Qjk5DfPgHBhcRpicktW692pYGFiyojttDVEBwAiosyrEMGggGyZPJUM9cwPmxUSDT: 0x256e8a87ab9c5f879696dadf6cdbd37613d9ffacUSDC: 0x256e8a87ab9c5f879696dadf6cdbd37613d9ffac No. of Questions= 12 INSTRUCTIONS: To answer a question, click the button in front of your choice. A response will appear in the window below the question to let you know if you are correct. Be sure to read the feedback. It is designed to help you learn the material. You can also learn by reading the feedback for incorrect answers. 1. Which of the following statements about living cells is false? a) Most are microscopic b) They are found in all animals but not in all plants. c) They are the smallest basic units that can carry out all of the functions that we normally define as life. 2. Chromosomes are found in _____________________ of cells. a) the nucleus b) the cytoplasm c) both the nucleus and the cytoplasm 3. Which of the following statements is true about the chromosomes of different plant and animal species? a) They may differ in number, but are the same shape and size. b) They may differ in the shape and size, but normally have the same number. c) They may differ in number, shape, and size. 4. Which of the following statements is true about cells? a) The nucleus is within the cell membrane which is surrounded by the nuclear membrane. b) The nucleus is within the nuclear membrane which is surrounded by the cytoplasm. c) The cytoplasm is within the nuclear membrane. 5. A karyotype is a: a) general term for any type of chromosome b) type of abnormal chromosome that is associated with Downs syndrome c) picture of an individuals chromosomes arranged in a standardized way 6. The sex chromosomes of normal females are: a) X and Y b) Y and Y c) X and X d) none of the above 7. The genes on the sex chromosomes of females are ___________ and those of males are mostly ___________ . a) homologous; homologous b) homologous; hemizygous c) hemizygous; hemizygous 8. Autosomes: a) are all chromosomes other than the sex chromosomes b) are normal sex chromosomes c) automatically determine the sex of children 9. Normal humans have __________ pairs of autosomes and ___________ pair(s) of sex chromosomes. a) 23 and 23 b) 23 and 2 c) 46 and 1 d) 22 and 1 10. All of the chromosomes in each normal human cell collectively have approximately __________ genes. a) 10,000-15,000 b) 20,000-25,000 c) 242,000 d) 1,000,000 11. A chromatid is: a) one of the strands or arms of a chromosome b) the point of attachment of two strands of a chromosome c) a chromosome before it becomes visible during cell division 12. The development of masculine physical characteristics is most affected by the inheritance of: a) an X chromosome b) a karyotype c) the SRY gene Return to Menu Next Topic Copyright � by Dennis ONeil. All rights reserved.
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