Prentice Hall Brief Review: The Living Environment 2019
ISBN: 9781418292164
Textbook solutions
All Solutions
Section 1.2: Cells: The Basic Structure of Life
Exercise 11
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The answer is 1. Cell membrane separates the inside contents of a cell to the outside. This is composed of a lipid bilayer which protects it from the outside. Being a lipid, the cell membrane becomes a semi permeable membrane.
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1
Exercise 12
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The answer is 1. Organelles are living components that have a certain function while inclusions, on the other hand, are non living components or stored nutrients located in the cytoplasm.
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1
Exercise 13
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The answer is 3. The major function of the nucleus is the storage of the cell’s genetic material and is the one responsible for DNA replication.
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3
Exercise 14
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The answer is 1. The major function of the nucleus is the storage of the cell’s genetic material and is the one responsible for DNA replication.
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1
Exercise 15
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The answer is 3. A vacuole is located in the cytoplasm and has wastes or food. inside these storage sacs. These vacuoles are also designed to digest and pump out water.
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3
Exercise 16
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The answer is 3. A ribosome combines together amino acids by attaching to a part of the mRNA and a complementary amino acid on a tRNA molecule. They are the one responsible for synthesizing protein.
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3
Exercise 17
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The answer is 3. Mitochondria, this is the part of the cell structure that house the reactions that release energy from nutrients. They are known as the powerhouse of the cell.
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Exercise 18
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The answer is 2. Chloroplast is the one responsible for producing food for the plant cell. It is considered as one of the parts that are essential to the cell.
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2
Exercise 19
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The answer is 2. A ribosome combines together amino acids by attaching to a part of the mRNA and a complementary amino acid on a tRNA molecule. They are one responsible for protein synthesis.
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2
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