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Questions and Answers

What is the main purpose of homeostasis?

To prevent any external factors from affecting the body

To only focus on maintaining internal stability

To adjust to changing external conditions while maintaining internal stability (correct)

To keep the body in a constant state without any changes

Which type of cells lack a nucleus and are simpler in structure?

Eukaryotic cells

Cells with selective permeability

Cells with membrane-bound organelles

Prokaryotic cells (correct)

What is the role of cholesterol in biological membranes?

Provides energy for cellular activities

Not present in most prokaryotes

Acts as a structural component in all types of cells (correct)

Helps in long-distance cell-cell communication

Which cellular component is responsible for functional separation within the cell?

Nuclear membrane Signup and view all the answers

What do eukaryotic cells have that prokaryotic cells lack?

Membrane-bound organelles Signup and view all the answers

What is the key characteristic of plasma membranes in cells?

Consist of integral and peripheral proteins Signup and view all the answers

What is the primary function of the Golgi apparatus in a cell?

Protein processing, posttranslational modifications, and packaging of proteins for transport Signup and view all the answers

What is the primary role of mitochondria in a cell?

Oxidation of carbohydrates and lipids to produce energy Signup and view all the answers

Which of the following is not a key player in cellular energy metabolism?

Photosynthesis Signup and view all the answers

What is the primary function of lysosomes in a cell?

Digestion of macromolecules Signup and view all the answers

What is the energy currency molecule used in cells?

Adenosine Triphosphate (ATP) Signup and view all the answers

Which of the following energy sources can be metabolized through the process of beta-oxidation?

Ketone bodies Signup and view all the answers