Biochem Exam 1

Which of the following is a feature of living organisms?

• Lack of complexity and organization

• Ability to self-replicate and adapt

• Inability to respond to environmental changes

• Absence of specific functions in body components

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What is the primary function of ribosomes in eukaryotic cells?

• Oxidize fatty acids

• Site of protein synthesis

• Degrade intracellular debris

• Support cell structure

Which organelle is responsible for oxidative phosphorylation in eukaryotic cells?

• Golgi apparatus

• Mitochondria

• Lysosome

• Nucleolus

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What is the role of the plasma membrane in eukaryotic cells?

• Site of ribosomal RNA synthesis

• Separates intracellular contents from the outside environment

• Processes and packages proteins

• Degrades intracellular debris

Which structure is specific to animal cells?

• Lysosome

• Chloroplast

• Cell wall

• Central vacuole

What is the primary function of chloroplasts in plant cells?

• Store water and nutrients

• Harvest sunlight and produce ATP and carbohydrates/sugars

• Provide structural support

• Degrade macromolecules

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NGSS.HS-LS1-5

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Which structure in plant cells is responsible for storing carbohydrate products of photosynthesis?

• Thylakoids

• Glyoxysome

• Starch granules

• Plasmodesma

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What is the role of the nucleoid in bacterial cells?

• Site of protein synthesis

• Stores water and metabolites

• Contains all genes (DNA), not separated by a membrane

• Provides structural support

Identify a function of proteins in cells.

• Store genetic information

• Harvest sunlight

• Serve as a structural element

• Degrade sugars

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NGSS.MS-LS1-2

What is one of the primary functions of nucleic acids?

• Act as structural components of cell walls

• Store and transmit genetic information

• Serve as energy-rich fuel stores

• Function as pigments

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