Take Practice Test: On a separate sheet of paper write down numbers 1-60. 1. 2. 3. through 60. Indicate which ones you got correct with + or - . Use the grade breakdown to check your score.
This is the Benchmark Grade Breakdown Grade # Correct Points Earned A 57-60 171-180 B 51-56 153-168 C 42-50 126-150 D 35-41 105-123 F 0-34 0-102
Focus on: Investigation & Experimentation (I & E)Hypothesis#3, #4, #7, #12 Fair Test #10, Macromolecules#17, #18 Building blocks, Proteins #20, #21, #23, Enzymes#28, #29, #30, #32 Cell Biology #36 Golgi, #37 Smooth & Rough ER Difference, #39 Viruses Differ, #41 Animal & Plant Cell Differ, #43 Polar Hydrophilic & Non-Polar hydrophobic end of cell membrane, #44 Surface Area & Volume, #54 Cell Membrane, Photosynthesis #55 Chloroplast Function, #56 Calvin Cycle / Light Independent Reactions / Dark Reactions, #58 Gas from Photosynthesis
A B D C 1.( I & E 1a) Of the different graphs above, which one looks like the graph we saw in our CBL results of temperature? A. Pie Chart B. Bar Graph C. line Graph D. Scatter Graph
A B C D 2.( I & E 1a) What is the item labeled B in the group above? A. Graduated Cylinder B. Erlenmeyer Flask C. Beaker D. Tongs E. Test tube
3. (I&E 1.f.) A group of scientist observe that tomatoes grow best when treated with fertilizer. One states that fertilizer helps to promote plant growth. This statement is an example of the following? • A. ConclusionB. Theory • C. HypothesisD. Observation
4. (I&E 1.f.) It is important to remember, that a set of ideas can become theory if which of the following occurs? • Some evidence supports the idea. • The idea is debated in the scientific community and the idea is deemed true. • C. Scientist believe idea is true & will not change over time. • D. Idea is widely demonstrated over time & idea continues to have consistent results, observations, and trends.
A B D C 5.( I & E 1a) Which graph above, shows the parts of the whole? A. Pie Chart B. Bar Graph C. line Graph D. Scatter Graph
A B D C 6.( I & E 1a) Of the different graphs above, which one would be best in comparing the results of our graphing calculator data that shows variation in plants emissions of O2? A. Pie Chart B. Bar Graph C. line Graph D. Scatter Graph
7. (I&E 1.f.) A hypothesis is a proposed answer to a science question or problem that must meet the following? • It has to be narrow in focus. • It must be tested in a controlled experiment. • C. It was tested using one variable or factor difference and all other factors are unchanged or constant. • D. All of the above must be true.
8. (I&E 1.g.) Despite the fact that scientific models are helpful, in observing trends and making the best guess decisions for future use, they are limited. Which of the following would be the most important model limitation for population growth? • Models do not take into account food sources. • Models do not account for variables that change population sizes. • C. Models do not account for diseases. • D. Models do not account for living space.
9. (I & E 1.a.): In an experiment scientist used a CBL & Graphing Calculator interface to graph temperature changes over a certain period of time. What would be plotted on the X-axis? • Time • B. Temperature • C. Date • D. Nothing
10. (Inv. & Exp.1j) In order for an experiment to be fair and valid, all but one variable should be similar and controlled. In an experiment of growing bread mold; a piece of bread must be moisten with 10 ml of water, and placed in dark for 1 week. In this experiment what will make the results unreliable? • There is no clear single test variable. • The age of the bread. • C. Placing bread in the dark for 1 week. • D. This is a reliable test!!!
11. (I&E 1.j.) After any experiment and before drawing any conclusions all scientist must do the following? • Retest but use a different variable. • Retest with an additional variable change. • C. Retest without any changes. • D. All of the above
12. (I&E 1.f.) Which of the following is true about a theory? • It has been tested once and once is enough. • It is not considered to be a reliable idea. • C. It is well tested and is consistent with known evidence. • D. It is an educated guess the a science question or concern.
13. (I&E 1.j.) In a controlled experiment, a control group is predetermined not to receive the test condition. A control group or constant helps scientist to identify the response to the variable that is being ________ ? • Focused on. • Controlled • C. Tested • D. None of the above.
Standard 1H 14. (1h) What is the name of the molecule that is made from dehydration synthesis of glucose? A. monosaccharide B. polysaccharide C. polymer D. monomer
15. What are the major components of lipids? A. Amino acids B. Nucleotides C. Monosaccharides D. Fatty acids
16. (1h) Which of the following is common among monomers? A. They contain many different substances. B. They have only one bond. C. One organic compound only. D. They bond with monomers of the same type.
Standard 1H 17. Macromolecules are made from? A. Many different substances. B. Complex chemicals. C. One organic compound only. D. simple molecules.
Standard 1H 18. Which molecule is correctly paired with its building block ? A. Nucleic Acid & fatty acid B. Fat & glucose C. DNA & Nucleotide D. Polysaccharide & amino acid
Standard 1H 19. Which of the following describes the process where simple materials are chemically combined to form more complex materials. A.synthesis B. hydrolysis C. aminothesis D. macromoleculosis
Standard 4E & 4F 20. Which of the following, is not a means by which proteins can be different? A. The kinds of amino acids. B. The number of amino acids. C. The sequence of amino acids. D. The ribosomes that help manufacture proteins are mutated.
Standard 4E & 4F 21. What is the molecule made from amino acids? A. Carbohydrate B. Nucleic Acid C. Lipids D. Proteins
Standard 4E & 4F 22. The chemical and physical properties of proteins are determined by? A. The number of amino acids B. The order of amino acids C. The kinds of amino acids D. The number, order and kinds of amino acids.
Standard 4E & 4F A B C D 23. Which level of protein structure gives proteins there final shape?
Standard 4E & 4F A B 24. Which of the following is the only structure that does not use hydrogen bonds to maintain its structure? C D
Standard 4E & 4F A B C D 25. Which of the following is a tertiary structure of protein?
Standard 4E & 4F 26. Which of the following segments of a protein is/are the same as: Valine-Valine-Glycine-Phenylalanine-Valine? A. Glycine-Valine –Glycine-Phenylalanine-Valine B. Glycine-Glycine-Valine Phenylalanine-Valine C. Valine-phenylalanine-Glycine-Valine- Valine
Standard 4E & 4F 27. What type of bond holds the amino acids together in a protein? A. Amino Covalent Bonds B. Hydrogen Bonds C. Ionic Bonds D. Peptide Bonds
28. Pepsin is an enzyme that works in the acid environment of the stomach. Why would it not work in the basic environment of the small intestine? A. Pepsin works in acid environment. B. Pepsin works in pH over 7. . C. Pepsin works in pH 7 only. . D. Pepsin works in both acid & base environment.
Standard 1B Review 29. Enzymes affect the reactions in living things by changing? A. The pH of reactions B. The ionic conditions of reactions. C. The products being made. D. The speed of the reaction.
Standard 1B Review 30. How do enzymes affect biochemical reactions? A. They are needed for reactions. B. They decrease the reaction rate. C. They raise the activation energy. D.They bind with reactant to lower activation energy and speed up reactions.
Standard 1B 31. A scientist planted 20 seeds in containers and placed in rooms of different temps. She observed a rate increase in germination as temp went up, which could be explained by what? A. Peptidosis B. Acids C. Bases D. enzymes
32. Which statement best describes, What higher temp & lower pH could do to a river? A. It could increase enzyme activity. B. Enzyme activity will remain constant. C. Enzyme activity would be inhibited. D. This would only make proteins stronger.
33. Which factor most likely accounts for change in rate of enzyme action as temp goes from 40o to 60o? A. Excess acid building up. B. Not enough substrate is present at higher temps. C. The high temp causes the shape of enzyme to be altered and be ineffective.
A. B. 34. Certain enzymes work best within an acidic or basic environment. This concept is seen in which graph above? A. B.
Standard 1B Review 35. All enzymes are? A. Carbohydrates B. Fats C. Lipids D. Proteins
36. Which of the following would best be compared to the post office of the cell? • smooth ER • nucleus • mitochondria • golgi apparatus
37. (1e) What is the main difference between the two types of endoplasmic reticulum? • one makes, the other transports protein. • one helps make protein, the other modifies lipids. • One has ribosomes, the other has cytoplasm. • All of the Above
38. Once the protein that will be used by other cells leaves the rough endoplasmic reticulum, it will be further processed in the _______? • smooth ER • nucleus • mitochondria • golgi apparatus
39. This is how viruses differ from Prokaryotic cells? • Viruses do not replicate on their own • Viruses lack protein • Viruses have a nucleus • viruses are eukaryotic cells
40. Some newly discovered cells are found not to have any membrane-bound organelles. What type of cells are they? • Eukaryotic • Viruses • Prokaryotic • animal cell
41. Students analyze two drawings of cells to determine which is the plant and which is the animal cell. Which of the following is found in plant cells only? • Rough ER • Cell Membrane • Chloroplast • Mitochondria
42. (1c) Which of the following is true of prokaryotic cells and not eukaryotic cells? • They assemble amino acids into proteins. • They are mostly viruses. • They contain RNA only. • They are mostly bacteria.