Sample Paper- 2013 Sub: Biology Class-XI Time: 3Hrs. M.M.70 General Instructions:- a. All Questions are compulsory. b. The question paper consists of 30 questions divided into four sections A‚ B‚ C and D. The section A contains 1-8 questions of 1 mark each‚ the section B consists of 9-18 question of 2 marks each‚ the section C has 19-27 question of 3 marks each and section D includes 28-30 question of 5 marks each. c. There is no overall choice. However‚ internal choice has
Free Photosynthesis Adenosine triphosphate Organelle
INTRODUCTION Cell isolation and culture are essential tools for the life sciences today specifically in the study of cell function. Isolated cells grown under controlled conditions can be manipulated and imaged at a level of resolution under the microscope‚ that is not possible in whole animals or even tissue explants (Zhang and Kuhn‚ 2011). In its simplest form‚ cell culture involves the dispersal of cells in an artificial environment composed of nutrient solutions‚ a suitable surface to support
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Chapter 29 An Overview of Land Plant Evolution 1. Describe four shared derived homologies that link charophyceans and land plants. a. The complexes that produce cellulose are rose shaped in both charophyceans and land plants. Next both have peroxisome enzymes that help minimize the loss of organic products from photorespiration. The structure of their flagellated sperm is very similar. Finally‚ both form a phragmoplast during cell division. 2. Distinguish among the kingdoms Plantae‚ Streptophyta
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Significance of Planarians Planarians are non-parasitic flatworms of the phylum Platyhelmintes found in fresh water like ponds or lakes. In my research paper I focused on Schmidtea mediterranea planarians found in Tusinia and southern Europe which are extensively used as a model organism to study development and regeneration process (Newmark 2012). Schmidtea mediterranea are chosen by researcher in molecular biology and genetics field because these planarians have diploid chromosomes and are hermaphrodite
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balls on earth‚ the roly- poly. They are commonly known as the roly-poly‚ also pill bug‚ and wood lice. Its scientific name is Armadilidum vulgare. It is actually not an insect‚ it is an isopod ( a type of arthropod). It’s genus is Armadilidum‚ it’s Phylum is Arthopoda‚ and Subphylum is Crustacea. I have observed that the exoskeleton is a blue-gray‚ it is an invertebrate‚ it’s mouth‚ antennae and eyes are located on it’s head‚ and it rolls into a perfect sphere as defense when being disturbed or threatened
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cell. These new viruses go on to affect other cells. Algae is a plantlike protist. Some are one celled and others are many-celled. All algae can make there own food because they have a pigment called chlorophyll in there chloroplasts. Theses are the phylum of
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<b>Scientific name</b> - Kingdom- Protista‚ Phylum- Saccoina‚ Class- Rhizopodea‚ Order- Amoebida‚ Family- N\A‚ Genus- Ameba‚ Species- proteus<br><br><b>Description</b> - Amebas are one of the simplest organisms with animal characteristics. They consist of a single cell that is only about one hundredth of an inch long and it can only be seen through a microscope. The ameba ’s body is shapeless and is a jelly like mass of material called protoplasm. Its cytoplasm is transparent. The central area is
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membrane-enclosed nucleus c. the presence of a nucleus with no DNA d. the presence of mitochondria e. having a cell wall without a cell membrane 3) Which of the following does NOT comprise a logical hierarchy of organization? a. family‚ order‚ class‚ phylum‚ kingdom b. molecules‚ cells‚ tissues‚ organ systems‚ populations c. organisms‚ populations‚ communities‚ biomes‚ biosphere d. cells‚ tissues‚ organs‚ organ systems‚ organisms e. molecules‚ atoms‚ organelles‚ tissues‚ systems 4) The scientific
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Unit One: Diversity – Study Notes Classification Classification Taxonomy * Seven taxa (King Philip Came On Family’s Gold Spaceship): 1. Kingdom (animalia) 2. Phylum (chordate) 3. Class (mammalia) 4. Order (primates) 5. Family (hominidae) 6. Genus (homo) 7. Species (sapiens) * Three domains: 8. Domain Bacteria 9. Domain Archaea 10. Domain Eukarya * Six Kingdoms: 11. Kingdom Animalia (animals) 12. Kingdom
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Chapter 11 The first Paleozoic orogeny to occur in the Cordilleran mobile belt was the: | c. Antler | | Extensive cratonic black shales were deposited during what two periods? | d. Late Devonian-Early Mississippian | | The main economic deposit of a cyclothem is: | a. coal | | During the Late Kaskaskia (Cratonic Sequence 3)‚ what type of deposition predominated on the craton? | e. carbonates | | Which orogeny was not part of the closing of the Iapetus Ocean
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