Science and Technology BIOLOGY Quimestral ExamStudent´s Name: ______________________________________________ID Number: ____________ 10mo de E.B.S. ____ Date: __________Teacher´s Name:Juan Francisco GarcíaGRADE: ____________INSTRUCTIONS:Before you start, read carefully each instruction. Take your time to answer. Check your spelling and grammar.Be sure to write down your full name and ID number on the spaces assign for it.The exam is graded over 100 points.During the test you cannot use any dictionary, electronic device and it´s forbidden to ask for any other material.Good luck.Criteria Assessment: Criteria C: Knowledge & understanding of ScienceAchievement IB Level Descriptor Student Friendly languageLevel0 The student does not reach a standard described The student does not reach a standard described*SBP: Unsatisfactory by any of the descriptors given by any of the descriptors given. below.1-2 The student recalls some scientific ideas, concepts The student recalls some scientific ideas andSBP: Partially Proficient and/or processes. concepts and uses these to solve simple The student applies scientific understanding to problems. solve simple problems.3-4 The student describes scientific ideas, concepts The student describes scientific ideas andSBP: Proficient and/or processes. concepts and uses scientific understanding to The student applies scientific understanding to solve complex problems in familiar situations. The solve complex problems in familiar situations. student examines scientific information by The student analyzes scientific information by identifying parts, relationships and causes. The identifying parts, relationships or causes. student is able to analyze information that shows understanding.5-6 The student uses scientific ideas, concepts and/or The student uses scientific ideas and conceptsSBP: Advanced processes correctly to construct scientific and uses scientific understanding correctly to explanations. construct scientific explanations including those The student applies scientific understanding to in familiar and unfamiliar situations. solve complex problems including those in The student analyzes and evaluates scientific unfamiliar situations. information and makes judgments supported by The student analyzes and evaluates scientific scientific understanding regarding the reliability information and makes judgments supported by of the ideas and the quality of work. scientific understanding.
I. IN THE FOLLOWING SECTION, RELATE THE CONCEPTS TO THE CORRECT MEANING. (30 Points Total) 1. In the next table, write down the letter of the concept related to the correct meaning. (1 point each answer, 10 points total) CONCEPT MEANING LETTER TISSUE A system formed by the interaction of a community of organisms with their environment. CELL Process by which cells obtain energy from glucids by transforming them into chemical energy. CYTOPLASM One of a class of substances that cannot be separated into simpler substances by chemical means. ATOM The cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles. ELEMENT An organism that can produce its own food. CELLULAR The basic structural, functional and origin unit of life. RESPIRATION AUTOTROPH The smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. ECOSYSTEM An aggregate of similar cells and cell products forming a definite kind of structural material with a specific function, in a multicellular organism. SYMBIOSIS The smallest unit of the matter. MOLECULE The living together of two dissimilar organisms, as in mutualism, commensalism, or parasitism. 2. Fill the blank of the following statements with the words that are missing. (1 point each answer, 20 points total) a. G1, G2, and S are all parts of _____________________. b. Chromatids are __________________ copies of a ________________ held together by _______________________. c. ______% of the cell cycle is interphase. d. Chromatids begin forming in __________________. e. ________________ produces four cells that have a different chromosome number from the original cells nucleus. f. ___________________________ is the exchange of segments of DNA between homologous chromosomes. g. Cytokinesis refers to the division of the ___________________________.
h. During prophase, the _______________________________ begins to break down, the chromatin starts to ______________________, and the mitotic __________________ begins to form. The opposite of this phase is _____________________________. i. During _______________________________ the centromere breaks. j. Mitosis starts with a one diploid cell and ends with ______________ (number) _______ somatic cells, while meiosis starts with a diploid, germ cell and ends with ________ (number) ________________ gamete. k. During prophase I, ______________________ (the formation of a tetrad) occurs.II. IN THE FOLLOWING SECTION, SELECT THE CORRECT ANSWER FOR THE NEXT STATEMENTS. (45 Points Total) 3. TRUE OR FALSE. Choose if the statement is True or False. The following section applies the rule of success minus mistake. For each mistake you have, you lose one of your successful answers. (1 point each answer, 20 points total) a. The information needed by a cell to direct its activities and to determine its characteristics is contained in molecules of DNA. ( ) b. Viruses are divided by the type of capsule that contains them. ( ) c. Fungi like protists consume dead or decomposing matter. ( ) d. Some Fungi are prokaryotes and some are eukaryotes. ( ) e. Archaeobacteria are pathogenic, living in and around other organisms infecting them. ( ) f. Micrococcus, Streptococcus and Sarcina are rod shape bacteria. ( ) g. Chlamydia is a genus of Gram Positive bacteria. ( ) h. Archaeobacteria share the metabolism of eukaryotes, so they reproduce by mitosis. ( ) i. The cell nucleus is the control center of all the metabolic functions in the cell. ( ) j. One the principles of the Cell´s Theory states that all living beings, including virus are made of cells. ( ) k. Ascomycota is a genus of Eubacteria. ( ) l. The gap junction is a type of cellular transport. ( ) m. Some protists, such as flagellates, feed by filtrating water in order to obtain food. ( ) n. The M phase consists of mitosis and cytokinesis. ( ) o. Replication of chromosomes occurs between meiosis I and meiosis II. ( ) p. The cell wall is a characteristic only found in bacteria and animal cells. ( ) q. Rapid reproduction, mutation and genetic recombination promote genetic diversity in virus. ( ) r. In animal cells, cell division is accomplished by the formation of a cleavage furrow. ( ) s. Obligate anaerobes must use O2 for cellular respiration and cannot grow without it. ( ) t. Mitosis creates two cells that have the same number of chromosomes as the parent cell, but different genetic content. ( ) 4. MULTIPLE CHOICES. Select the correct answer and make a circle around it. The following section applies the rule of success minus mistake. For each mistake you have, you lose one of your successful answers. (1 point each answer, 25 points total) a. To enter or leave a cell, substances must pass through i. a microtubule. ii. the Golgi apparatus. iii. a ribosome. iv. the nucleus. v. the plasma membrane.
b. Bacterial cell are prokaryotic; in comparison to a typical eukaryotic cell they would i. be smaller. ii. have a smaller nucleus. iii. lack a plasma membrane. iv. have fewer internal membranous compartments. v. have a greater variety of organelles.c. The maximum size of a cell is limited by i. its need for enough surface area for exchange with its environment. ii. the number of organelles that can be packed inside. iii. the materials needed to build it. iv. the amount of flexibility it needs to be able to move. v. the amount of food it needs to survive.d. Which of the following statements about viruses is false? i. viruses are acellular ii. viruses are obligate intracellular parasites iii. viruses are members of a primitive, polyphyletic group iv. viruses can contain DNA or RNAe. You would expect a cell with an extensive Golgi apparatus to i. make a lot of ATP. ii. secrete a lot of material. iii. move actively. iv. perform photosynthesis. v. store large quantities of foodf. Which of the following correctly matches an organelle with its function? i. mitochondrion . . . photosynthesis ii. nucleus . . . cellular respiration iii. ribosome . . . manufacture of lipids iv. lysosome . . . movement v. central vacuole . . . storageg. Mitochondria and chloroplasts share several common features, for example, i. both are capable of semiautonomous growth and reproduction. ii. neither are components of the endomembrane system. iii. each contains a small amount of DNA iv. each organelle synthesises some of its own protein. v. all of the aboveh. Consider the following data: Among the protists, brown algae, red algae and amoebae include unicellular and multicellular organisms. Which of the following conclusions is consistent with the data presented? i. Multicellularity is a synapomorphy that defines a eukaryote. ii. Multicellularity evolved once; thus, animals are derived from the most recentlyevolved protists. iii. Multicellularity evolved multiple times as eukaryotes diversified. iv. Multicellularity is more adaptive than unicellularity. v. None of the above answers apply.i. Of the following organelles, which group is involved in manufacturing substances needed by the cell? i. lysosome, vacuole, ribosome ii. ribosome, rough ER, smooth ER iii. vacuole, rough ER, smooth ER
iv. smooth ER, ribosome, vacuole v. rough ER, lysosome, vacuolej. A cell has mitochondria, ribosomes, smooth and rough ER, and other parts. Based on this information, it could not be i. a cell from a pine tree. ii. a grasshopper cell. iii. a yeast (fungus) cell. iv. a bacterium. v. Actually, it could be any of the above.k. What organisms are most numerous on Earth? i. Eukaryotes ii. Archaea iii. Prokaryotes iv. Plants v. Insectsl. Dye injected into a plant cell might be able to enter an adjacent cell through a i. tight junction. ii. microtubule. iii. desmosome. iv. plasmodesma. v. gap junction.m. A researcher made an interesting observation about a protein made by the rough ER and eventually used to build a cells plasma membrane. The protein in the membrane was actually slightly different from the protein made in the ER. The protein was probably changed in the i. Golgi apparatus. ii. smooth ER. iii. mitochondrion. iv. nucleus. v. chloroplast.n. The electron microscope has been particularly useful in studying bacteria, because i. electrons can penetrate tough bacterial cell walls. ii. bacteria are so small. iii. bacteria move so quickly they are hard to photograph. iv. with few organelles present, bacteria are distinguished by differences in individual macromolecules. v. their organelles are small and tightly packed togethero. Which of the following is a property of the myxobacteria? i. gliding motility ii. formation of fruiting bodies iii. stalk formation iv. all of the above v. more than one of the above, but not allp. Cell fractionation is the most appropriate procedure for preparing ____ for study. i. isolated cells which are normally found tightly attached to neighboring cells ii. cells without a functional cytoskeleton iii. isolated organelles iv. the basic macromolecules v. bone and other similar cells which are situated within a mineral framework
q. Which of the following clues would tell you whether a cell is prokaryotic or eukaryotic? i. the presence or absence of a rigid cell wall ii. whether or not the cell is partitioned by internal membranes iii. the presence or absence of ribosomes iv. whether or not the cell carries out cellular metabolism v. whether or not the cell contains DNAr. Sara would like to film the movement of chromosomes during cell division. Her best choice for a microscope would be a i. light microscope, because of its resolving power. ii. transmission electron microscope, because of its magnifying power. iii. scanning electron microscope, because the specimen is alive. iv. transmission electron microscope, because of its great resolving power. v. light microscope, because the specimen is alive.s. A plant cell was grown in a test tube containing radioactive nucleotides, the parts from which DNA is built. Later examination of the cell showed the radioactivity to be concentrated in the i. rough ER. ii. peroxisome. iii. smooth ER. iv. central vacuole. v. Nucleust. Which of the following is true of methanotrophs? i. Many may grow on methanol, formate, or methylamine. ii. They can grow on methane. iii. They are unable to grow using carbon compounds that contain a carbon-carbon bond. iv. All of the above are true. v. More than one of the above, but not all are true.u. Biologists sometimes divide living organisms into two groups: autotrophs and heterotrophs. How do these two groups differ? i. They use different sources of energy. ii. They use different electron acceptors. iii. They use different sources of carbon. iv. They differ in the way they generate ATP.v. Which of the following protists causes the human disease malaria? i. Giardia ii. Plasmodium iii. Trichomonas iv. Leishmaniaw. Which of the following characteristics is true of all protists? i. contains a nucleus ii. very small iii. unicellular iv. has a cell wall v. photosyntheticx. Which of the following statements about prokaryotic cells is false? i. Prokaryotes are permanently haploid ii. Prokaryotes lack a cytoskeleton iii. Prokaryotes lack membrane-bound organelles
iv. Prokaryotes undergo rapid mitosis y. In animals, why are fungal infections such as athlete’s foot so much harder to curethan bacterial infections? i. Fungi and animals are more closely related than bacteria and animals. ii. Fungi are part of a younger evolutionary lineage than bacteria. iii. Fungi are more highly evolved than bacteria. iv. Fungi are a source of many antibiotics that work against bacteria.III. CRITICAL THINKING. Analyze your answers and write them down correctly. (25 Points Total) 5. In what way is sex separate from reproduction in prokaryotes? Argument your answer. (5 Points) 6. Describe the importance of Prophase I in meiosis for genetic diversity. (5 Points Total) 7. Describe the role of Oxygen in the metabolism of Eubacteria. Argument your answer. (5 Points Total)
8. Which is the reason that Gram Positive and Gram Negative Bacteria have different staining colors? Argument your answer. (5 Points Total)9. Name the structures and their functions in the following image. (5 Points Total)