Miller and Levine Biology
Miller and Levine Biology
1st Edition
Joseph S. Levine, Kenneth R. Miller
ISBN: 9780328925124
Textbook solutions

All Solutions

Page 279: Test Practice

Exercise 1
Step 1
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The genome contains information about the synthesis of proteins. After the process of transcription, proteins are made in a translation process that occurs in the ribosomes. Ribosomes that are attached on the endoplasmic reticulum makes that part of this organelle granulated. Protein enters this organelle, where its structure may be altered. Ribosomes of the endoplasmic reticulum make proteins for the cell membrane or the ones that develop functions outside of the cell. Ribosomes that are free in the cytoplasm make proteins that remain inside the cell. Protein molecules come out of endoplasmic reticulum in a vesicle and go to the Golgi apparatus. They are altered, stored or prepared to be released from the cell in this very organelle.
Result
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A ribosomes, rough endoplasmic reticulum, Golgi apparatus
Exercise 2
Step 1
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Photosynthesis is a process where the light energy is converted to chemical energy. Plants contain a green pigment that is called chlorophyll which absorbs light, lose an electron after which a chain reaction starts. In the final process, a chemical reaction between phosphorus molecule, light, ADP, NADP, and water molecule result in NADPH, ATP, hydrogen ions and molecules of oxygen. The chlorophyll is found in chloroplasts of plant cells, especially in leaves.
Result
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D. add chloroplasts because leaves are where photosyntesis occurs
Exercise 3
Step 1
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The DNA molecule that is found in the nucleus of a cell contains information about the synthesis of proteins. After the process of transcription, proteins are made in a translation process that occurs in the ribosomes.
Result
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E protein synthesis because DNA in the nucleus contains the instructions for making proteins
Exercise 4
Step 1
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When found in water, the plant cells react by enlargement of the central vacuole, that push the cell contents toward the cell wall.
Result
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C the central vacuole in the cells increases in size
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