Ques:Q: Lipids are broken down by what? Read this paragraph and choose the correct option from the provided answers: Dehydration and hydrolysis reactions are catalyzed, or "sped up," by specific enzymes; dehydration reactions involve the formation of new bonds, requiring energy, while hydrolysis reactions break bonds and release energy. These reactions are similar for most macromolecules, but each monomer and polymer reaction is specific for its class. For example, in our bodies, food is hydrolyzed, or broken down, into smaller molecules by catalytic enzymes in the digestive system. This allows for easy absorption of nutrients by cells in the intestine. Each macromolecule is broken down by a specific enzyme. For instance, carbohydrates are broken down by amylase, sucrase, lactase, or maltase. Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases. Breakdown of these macromolecules provides energy for cellular activities. Choices: - hydrolysis - triglycerides - amino acids - lipases A:

Ans:lipases
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Ques:Q: Compared with the molecules of many other substances, molecules of water are strongly attracted to what? Read this paragraph and choose the correct option from the provided answers: Compared with the molecules of many other substances, molecules of water are strongly attracted to each other. How is this likely to affect the boiling point of water?. Choices: - hydrogen - helium - nothing - each other A:

Ans:each other
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Ques:Q: What is the term for flowering seed plants? Read this paragraph and choose the correct option from the provided answers: Angiosperms , or flowering seed plants, form seeds in ovaries. As the seeds develop, the ovaries may develop into fruits. Flowers attract pollinators, and fruits encourage animals to disperse the seeds. Choices: - spores - perennials - gymnosperms - angiosperms A:

Ans:angiosperms
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Ques:Q: What type of protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle? Read this paragraph and choose the correct option from the provided answers: The second main component of plasma membranes are the variety of proteins. A membrane protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle. Membrane proteins can be put into two groups based on how the protein is associated with the membrane: (1) integral membrane proteins and (2) peripheral membrane proteins. Choices: - amino acid - rod protein - conduction protein - membrane protein A:

Ans:
membrane protein
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