Science Practice Tests

Science Practice Tests -1Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction o...
Author: Brent Russell
5 downloads 0 Views 139KB Size
Science Practice Tests

-1Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Table of Contents Table of Contents................................................................................................ 2 Science Test 1 ..................................................................................................... 3 Answer Key for Science Test 1 ............................................................................................................ 8

Science Test 2 ..................................................................................................... 9 Answer Key for Science Test 2 .......................................................................................................... 14

Science Test 3 ................................................................................................... 15 Answer Key for Science Test 3 .......................................................................................................... 20

-2Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Science Test 1 Answer each question carefully using your science knowledge. The correct answers are found after the section. 1. Which of the following cannot be considered a major tissue type? A. Nerve tissue B. Muscle tissue C. Connective tissue D. Extracellular tissue 2. Which of the following atoms is denoted by the symbol K? A. Potassium B. Calcium C. Sodium D. Helium 3. Which of the following represents the chemical formula for Ammonia? A. NH4 B. NH3 C. NH2 D. NH1 4. Ions that have a net negative charge are called? A. Anions B. Cations C. Molecules D. Protons 5. Which of the following atoms is the most numerous in the body? A. Chlorine B. Nitrogen C. Hydrogen D. Calcium 6. Which of the following is the correct formula for pH? A. pH = -log[H+] B. pH = +log[H+] C. pH = 10/-log[H+] D. pH = 10/-log[H+] 7. Using percent of body weight calculations, which of the following categories is found in the highest concentration in the body? A. Nucleic acids B. Lipids -3Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

C. Carbohydrates D. Proteins 8. The three dimensional shape of a molecule is known as __________. A. Conformation B. Association C. Alignment D. Coagulation 9. Which of the following bases is not associated with deoxyribonucleic acid (DNA)? A. Adenine B. Thymine C. Uracil D. Cytosine 10. Which of the following bases is not associated with ribonucleic acid (RNA)? A. Adenine B. Thymine C. Uracil D. Guanine 11. The atomic weight of an atom is the ratio of an atom’s mass compared to ____ atom? A. Hydrogen B. Carbon C. Helium D. Potassium 12. What is the characteristic number of covalent bonds that carbon forms? A. 1 B. 2 C. 3 D. 4 13. DNA (Deoxyribonucleic acid) consists of ___ chains of nucleotides coiled together. A. 1 B. 2 C. 3 D. 4 14. Alkaline solutions have a pH that falls in which of the following ranges? A. < 7.0 B. >7.0 C. 5 15. Which of the following is not considered a major class of biological units? A: Viruses B: Eukaryotic cells C: Prokaryotic cells D: Cytosol cells 16. Which of the following is not considered a function of the plasma membrane in cells? A. Connecting cells together with junctions B. Determining if chemical messengers are present C. Manufacture proteins D. Regulate flow of nutrients into and out of cell 17. Which of the following cellular organelles is considered the protein manufacturing center of a cell? A. Ribosomes B. Endoplasmic Reticulum C. Golgi Apparatus D. Nucleus 18. One ____ is the heat required to increase the temperature of water 1 degree if 1 gram of water is present on the Celsius scale. A. Kilocalorie B. Calorie C. Joule D. Ampere 19. Which of the following reactions most appropriate matches the following definition: at a state of chemical equilibrium, the product of the reaction has required almost all of the reactants. A. Irreversible reaction B. Reversible reaction C. Combination reaction D. Catalyst reaction 20. In humans, the primary molecule of energy transfer is considered? A. ATP B. ADP C. CP D. K 21. In which of the following stages of glucose breakdown is the most energy produced? A. Glycolysis -5Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

B. Krebs Cycle C. Oxidative Phosphorylation D. Citric Acid Cycle 22. Arterioles, venules, and capillaries are collectively known as _____. A. Macrocirculation B. Microcirculation C. Pulmonary trunk D. Hydrostatic gradient 23. Which of the following systems carries blood that is low on oxygen to the lungs? A. Pulmonary arteries B. Pulmonary veins C. Systemic system D. Systemic arteries 24. Blood entering the right ventricle in the heart during normal circulation goes to the ____ next. A. Right atrium B. Left atrium C. Left ventricle D. Lungs 25. Blood entering the left ventricle in the heart during normal circulation goes to the ____ next. A. Lungs B. Systemic circulation C. Right ventricle D. Right atrium 26. Which of the following is not a function of the kidneys? A. Assists in the regulation of blood pressure B. Gluconeogenesis C. Regulation of water balance in the body D. Secreting enzymes 27. Which of the following tissue structures is not considered part of the urinary system? A. Ureter B. Urethra C. Bladder D. Pancreas 28. Which of the following tissue structures is not considered part of the gastrointestinal system? -6Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

A. B. C. D.

Kidney Liver Gallbladder Pancreas

29. The point in a female’s menstrual cycle that is most correlated with pregnancy is? A: Secretory phase B: Proliferative phase C: Ovulation D: Follicular ovarian phase 30. Plasma cells make _____ in the body. A. Antibodies B. Plasma C. Renin D. Insulin

-7Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Answer Key for Science Test 1 1. D 2. A 3. B 4. A 5. C 6. A 7. D 8. A 9. C 10. B 11. B 12. D 13. B 14. B 15. D 16. C 17. A 18. B 19. A 20. A 21. C 22. B 23. A 24. D 25. B 26. D 27. D 28. A 29. C 30. A

-8Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Science Test 2 Answer each problem carefully. The correct answers are found after the section. 1. The compound NaCl stands for: A. Sodium Chloride B. Sodium Chlorine C. Niabium Chloride D. Niabium Chlorine 2. Household ammonia and human blood are considered which of the following? A. Acids B. Bases C. Salts D. Electrolytes 3. Human blood is what percent water? A. 55.4% B. 68.3% C. 84.9% D. 91.5% 4. Which of the following terms matches the given definition? ______ is the changing of substances into a different form that entered the body. A. Absorption B. Circulation C. Assimilation D. Responsiveness 5. When atoms of different elements combine which of the following is formed? A. Compounds B. Isotopes C. Electrons D. Molecules 6. Which of the following reaction terms correlates with the given chemical reaction? AB + CD → AD + CB A. Decomposition reaction B. Synthesis reaction C. Exchange reaction D. Structural reaction 7. Which of the following reaction terms correlates with the given chemical reaction? AB → A + B A. Decomposition reaction -9Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

B. Synthesis reaction C. Exchange reaction D. Structural reaction 8. Which of the following is considered the firmest type of connective tissue? A. Hyaline cartilage B. Bone C. Ligaments D. Elastic cartilage 9. Which of the following is not a characteristic of smooth muscle? A. Involuntary muscle contraction B. Found in blood vessels C. Cells lack striations D. Presence of an intercalated disk 10. Which of the following appropriate indicates the correct sequence of mitosis? A. Telophase, Anaphase, Metaphase, Prophase B. Anaphase, Metaphase, Telophase, Prophase C. Prophase, Metaphase, Telophase, Anaphase D. Prophase, Metaphase, Anaphase, Telophase 11. At what point during Mitosis does the chromosome (chromatids) separate? A. Metaphase B. Anaphase C. Telophase D. Prophase 12. The process of a white blood cell (WBC) engulfing a bacterial cell is ______. A. Phagocytosis B. Osmosis C. Transfusion D. Active transport 13. What is considered the building blocks of protein? A. Enzymes B. Nucleic acids C. Amino acids D. Chromatids 14. Which of the following is not a characteristic of proteins? A. Energy source B. Function as hormones C. Structural components D. Breakdown fats - 10 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

15. Lactose is considered a ________. A. Simple sugar B. Double sugar C. Triple sugar D. Expanded sugar 16. Is the following statement true or false? The increase in momentum by one body is equal to the momentum decreased by the other body. A. True B. False 17. Is the following statement true or false? Momentum is the product of the velocity and mass of an object. A. True B. False 18. Is the following statement true or false? Power is the rate at which work is done. A. True B. False 19. Is the following statement true or false? Inertia is an object’s resistance to change in motion. A. True B. False 20. Which of the following corresponds with the statement: An object will continue in a state of rest, unless it is acted upon by an unbalanced force. A. Newton’s third law of motion B. Newton’s second law of motion C. Newton’s first law of motion D. Charles law 21. Homeostasis control of body functions is done through a system known as? A. Positive feedback B. Negative feedback C. Stop controls D. Transitional control 22. Different tissues make up ______. A. Organelles B. Organs C. Macromolecules D. Proteins 23. Which of the following is not considered an organ? - 11 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

A. B. C. D.

Skin Femur Kidney Nerve cells

24. Which of the following is not considered part of the endocrine system? A. Hormones B. Parathyroid C. Adrenal glands D. Smooth muscle 25. All of the following are considered part of which organ system? (skin, sweat glands, and nails) A. Endocrine B. Skeletal C. Integumentary D. Muscular 26. Atoms that gain or loose electrons are called ____. A. Isotopes B. Molecules C. Ions D. Neutrons 27. The atomic number of an element is classified by the number of _____ in the atoms. A. Protons B. Neutrons C. Ions D. Electrons 28. How many electrons are found in the second shell of atom, if the atom is filled to capacity in the second shell? A. 2 B. 6 C. 8 D. 12 29. Elements are made of small particles known as? A. Ions B. Protons C. Molecules D. Atoms 30. The nucleus of an atom is made of ____ and _____. A. Protons and Neutrons - 12 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

B. Protons and Electrons C. Neutrons and Electrons D. Neutrons and Isotopes

- 13 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Answer Key for Science Test 2 1. A 2. B 3. D 4. C 5. A 6. C 7. A 8. B 9. D 10. D 11. B 12. A 13. C 14. D 15. B 16. A 17. A 18. A 19. A 20. C 21. B 22. B 23. D 24. D 25. C 26. C 27. A 28. C 29. D 30. A

- 14 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Science Test 3 Answer each problem carefully. The correct answers are found after the section. You are allowed 60 minutes to complete this test. 1. When the chromosomes line up in mitosis this is known as which phase? A. Telophase B. Anaphase C. Metaphase D. Prophase 2. Which cellular organelle contains enzymes that are considered digestive? A. Golgi Apparatus B. Lysosomes C. Nucleus D. Ribosomes 3. Organs repair themselves through a process of? A. Meiosis B. Mitosis C. Cellular differentiation D. Transformation 4. Which of the following is considered a model for enzyme action? A. Lock and Key model B. Enzyme interaction model C. Transformation model D. Transcription model 5. Which of the following statements about enzymes is not true? A. Enzymes are catalysts. B. Almost all enzymes are proteins. C. Enzymes operate most efficiently at optimum pH. D. Enzymes are destroyed during chemical reactions. 6. Which of the following statements about prostaglandins is not true? A. Prostaglandins promote inflammation. B. Prostaglandins can only constrict blood vessels. C. Prostaglandins are made in the renal medulla D. Prostaglandins can lead to pain and fever. 7. Cholesterol that is known as (LDL) stands for: A. Low-density lipoproteins B. Low-density lysosomes C. Level-density lipoproteins D. Level-density lysosomes - 15 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

8. Hardening of the arteries is known as: A. Atherosclerosis B. Venous narrowing C. Micro-circulation D. Hypertension 9. The top number on a blood pressure reading indicates: A. Diastolic pressure B. Transient pressure C. Optimum pressure D. Systolic pressure 10. Litmus paper that is blue will turn/stay _____ in the presence of a strong base. A. Orange B. Red C. Blue D. Green 11. Breathing properly requires the presence of what compound that affects surface tension of alveoli in the lungs? A. Potassium B. Plasma C. Surfactant D. Sodium Chloride 12. Which of the following is not considered a function of the kidneys? A. Secretion B. Reabsorption C. Transport D. Filtration 13. The functional unit of the kidney is known as? A. Medulla B. Glomerulus C. Pyramid D. Nephron 14. Which of the following formulas indicate the ideal gas law? A. PV= knT or PV=RnT B. V=kT C. PV = k D. KTV =PR 15. Which of the following is not considered a characteristic or property of a gas? - 16 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

A. B. C. D.

Volume Mass Pressure Particles

16. Which of the following is described in the definition: An object immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object? A. Archimedes’ principle B. Charles’ law C. Boyle’s law D. Anderson’s principle 17. Liquids that evaporate quickly are known as _____ liquids. A. Viscous B. Volatile C. Evaporative D. Transient 18. High frequency sound waves are known as: A. Fundamental waves B. Overtones C. Consonance waves D. Dissonance waves 19. The first American to win a Nobel Prize was ______ for measuring the speed of light. A. Albert Einstein B. Albert Michelson C. Grimaldi D. Thomas Young 20. What anatomical structure connects the stomach and the mouth? A. Trachea B. Spinal column C. Hepatic duct D. Esophagus 21. The movement of food through the intestines is known as: A. Peristalsis B. Ileum translation A. Microvilli propulsion B. Flexure propulsion 22. The enzyme maltase does the following: A. Breaks down lactose to glucose - 17 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

B. Turns glucose into maltose C. Breaks down maltose to glucose D. Turns glucose into lactose 23. High levels of bilirubin in the blood stream can result in: A. Uric acid overexposure B. Jaundice C. Bile salt production D. Hepatic mutation 24. The symbol B on the periodic table stands for: A. Beryllium B. Boron C. Barium D. Berkelium 25. The symbol Mn on the periodic table stands for: A. Magnesium B. Molybdenum C. Manganese D. Margon 26. The symbol Ca on the periodic table stands for: A. Calcium B. Carbon C. Cobalt D. Chlorine 27. The symbol Br on the periodic table stands for: A. Beryllium B. Boron C. Barium D. Bromine 28. Vinegar is also known as: A. Acetic acid B. Acetone acid C. Sulfuric acid D. Ascorbic acid 29. A Lewis acid is a/an ____ pair acceptor. A. Neutron B. Proton C. Electron D. Ion - 18 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

30. _____ reactions produce heat. A. Endothermic B. Exothermic C. Hydrogen D. Buffered

- 19 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.

Answer Key for Science Test 3 1. C 2. B 3. B 4. A 5. D 6. B 7. A 8. A 9. D 10. C 11. C 12. C 13. D 14. A 15. D 16. A 17. B 18. B 19. B 20. D 21. A 22. C 23. B 24. B 25. C 26. A 27. D 28. A 29. C 30. B

- 20 Copyright © Mometrix Media. You have been licensed one copy of this document for personal use only. Any other reproduction or redistribution is strictly prohibited. All rights reserved.