Biology Basics Unit Review Guide
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1 I. Write the scientific term for each of the following statements: 1. The lab equipment that used to determine acidity or alkalinity of the solutions. 2. The sciences that are mainly concerned with the study of non-living objects. 3. It is a proposed explanation based on evidences that can be investigated further to prove it right or wrong. 4. It is scientific procedure that is carried out to validate whether a hypothesis is correct or not. 5. The series of steps that engineers follow to come up with the solution of the problem. 6. The first step in the technological design process in which the engineers highlight the problem. 7. The smallest building block unit of the life. 8. The bond in which the electrons are unequally shared between the two atoms of different elements. 9. The process in which the chemical bonds between atoms are formed or broken. 10. The bond that responsible for the unique properties of water. 11. A long chain of repeating molecules. 12. The molecule that formed when two monosaccharides join via a condensation reaction. ( ) 13. The chemical signals that released by endocrine cells. 14. The building blocks of the nucleic acids. 15. A chemical reaction which break down the polymer. II. Multiple Choice: choose the letter of the best answer. 1. The object in the following picture is. a) the Conical flask b) Measuring cylinder c) Beaker d) Volumetric flask Copyright iteachly.com 1
2 2. is the laboratory equipment that used to measure the volume of a liquid in ml. a) Conical flask b) Beaker c) Graduated cylinder d) Dropper 3. What does this safety symbol stand for? a) Electric shock b) Poison c) Explosive d) Flammable and Combustible 4. The is mainly concerned with the study of living organisms. a) Social sciences b) Formal sciences c) Life sciences d) Physical sciences 5. is the final step of the scientific method that explain the evaluated result obtained from the experimental findings and observation. a) Evaluation b) Hypothesis c) Interpretation d) Observation 6. refer to the tendency of atoms to prefer eight electrons in their outer most shell. a) Electronegativity b) Octet rule c) Hydrogen bonding d) Van der Waals forces Copyright iteachly.com 2
3 7. is the property that makes water able to dissolve many compounds. a) Polarity b) High boiling point c) Neutral d) High melting point 8. are the building blocks of the protein molecules. a) Nucleic acids b) Amino acids c) Monomers d) Nucleotides 9. What is the function of enzymes? a) Quick energy b) Movement c) Serve as thermal insulator d) Lower the activation energy 10. function as energy store at mammalian muscles. a) Starch b) Glucose c) Glycogen d) Cellulose III. Compare between: 1. Monosaccharides and disaccharides. Copyright iteachly.com 3
4 2. Polar and nonpolar covalent bonds. 3. Science and technology. 4. Social sciences and formal sciences. 5. Saturated and unsaturated fatty acids. IV. Enumerate the technological design process steps. Copyright iteachly.com 4
5 V. What is the relationship between glucose, fructose, and sucrose? VI. Each sentence below describes a step of the scientific method. Match each sentence from column A with a step of the scientific method listed in column B. Column A 1. Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. 2. Jonathan s data showed that household cockroaches moved away from raw cucumber slices 3. Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed 4. Justin wondered if dyes could be taken out of plant leaves, flowers, and stems Column B A. Recognize a problem B. Form a hypothesis C. Test the hypothesis with an experiment D. Draw conclusions VII. Draw the general chemical structure of an amino acid. And discuss how amino acids. Copyright iteachly.com 5
6 VIII. Matching Type: Match the statement from (Column A) that best define the symbol in (Column B). Column A Column B 1. Toxic material 2. Hot surface A. 3. Radioactive 4. Explosive material B. 5. High voltage C. D. E. IX. Why is the water molecule polar? What are the consequences of this property? Copyright iteachly.com 6
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