Paper 1 Chapter 1: Cell structure May/June 03 1 An actively growing cell is supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus
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eukaryotes 4.) Name 5 key characteristics once used in classifying prokaryotes. Photosynthetic/nonphotosynthetic Motile/nonmotile Unicellular/colony-forming/filamentous Formation of spores/Division by transverse binary fission Importance as human pathogens or not 5.) Name the domains of life. Archaea Bacteria Eukarya 6.) Name and describe 3 basic forms of prokaryotes. Bacillus (rod-shaped) Coccus (spherical/ovoid-shaped) Spirillum (long and helical-shaped) 7.) The bacterial cell wall
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and what are the two forms of acid deposition. I have also watched some videos about acid rain? I also should say the most important thing that scientists are doing in their labs. Where acid rain is most effects on which states and does it affect human when we swim in a really high acidic ocean. Acid rain is a mixture of water and gases that have a pH of 5 or lower and it is found in our atmosphere. Acid rain is made out of two main gases nitrogen dioxide which is formed from cars‚ and sulfur
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[pic] ASSIGNMENT GUIDELINES |Theme and Unit title: Human Biology |Student Name: | |Unit 1 - Cells and Tissues | | |Title of assignment: Assignment 1: Short answer question paper- in class/open book examination.
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body temperature or in simple words‚ they cannot maintain a constant internal body temperature. 2. From the graph‚ a. Which animals could be described as true endotherms? Explain From the graph we can see that cat‚ human and platypus are true endotherms. It is because cat‚ human‚ platypus are maintaining a constant internal body temperature. Looking at the vertical axis of body temperature‚ we can see that these animals have very slight or no difference in their internal body temperature. Their
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Name___________________________________ Score________________ Section___________________________________ Date_________________ EXERCISE NO. 1a MITOSIS OBJECTIVES The students should be able to: 1. identify the different steps involved in mitosis and meiosis; 2. describe the behavior of the chromosomes during each stage of cell division; 3. identify specific events in mitosis and meiosis that allow the inheritance of traits and generation of variation. MATERIALS
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endocrinal system Thesis: Clearly‚ the use of some food additives is harmful to human health in general Argument 1: Canada accounts for twenty-five million dollars worth in artificial sweeteners to sell every year and that is only a mere five percent of sales worldwide. The desire of craving sugar is only a part of involuntary addiction in which people are trapping themselves within. Point-1: To begin‚ the human brain can very easily stimulated through the consumption of certain kinds of foods
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GCSE Biology B General Certificate of Secondary Education Unit B731/02: Modules B1‚ B2‚ B3 (Higher Tier) Mark Scheme for June 2012 Oxford Cambridge and RSA Examinations OCR (Oxford Cambridge and RSA) is a leading UK awarding body‚ providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels‚ Diplomas‚ GCSEs‚ OCR Nationals‚ Functional Skills‚ Key Skills‚ Entry Level qualifications‚ NVQs and vocational qualifications
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The meaning of transgenic is when an organism is altered by having a gene from another species transferred into it. (Page 64) 4. The scientists make the animals develop the desired proteins by‚ putting original human genes in to the animals causing them to express certain human therapeutic proteins in their milk. The scientists access the proteins by‚ giving the animals the genes‚ then they milk the animals and purify the proteins out of the milk‚ and lastly have the proteins made into different
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(common in eukaryotic cells) DNA molecules in a eukaryotic cell are pack aced into chromosomes. Every eukaryotic species has a characteristic number of chromosomes in each nucleus. Humans have 46. Somatic cells (non reproductive cells) have two sets of chromosomes in most plants and animals. (Humans have two sets of 23) Gametes (reproductive cells: sperm and eggs‚ and spores) have hals as many chromosomes as somatic cells. (All of our gametes have 23 chromosomes) Eukaryotic
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