Essentials Of Human Cell Biology

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1. What is the main function of the nucleus in a cell?

Stores energy for the cell

Produces proteins for the cell

Contains genetic materialcontrols the activities of the cell

Regulates cell division processes

The nucleus is responsible for controlling the activities of the cell by regulating gene expression and directing protein synthesis.

Explanation

The nucleus is responsible for controlling the activities of the cell by regulating gene expression and directing protein synthesis.

About This Quiz

Explore the intricate world of human cells with our focused educational content designed for level B2 learners. This resource enhances understanding of cell structure, function, and processes, essential for students pursuing studies in biology and related fields.

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2. What is the function of the cell membrane?

Regulates cell division

Produces energy for the cell

-holds the cell together -controles what goes in and out

Stores genetic information

The cell membrane primarily functions to maintain the structural integrity of the cell and regulate the passage of molecules in and out of the cell.

Explanation

The cell membrane primarily functions to maintain the structural integrity of the cell and regulate the passage of molecules in and out of the cell.

3. What is the primary function of ribosomes?

Lipids

Carbohydrates

Proteins

Nucleic Acids

Ribosomes are responsible for protein synthesis in cells.

Explanation

Ribosomes are responsible for protein synthesis in cells.

4. What process occurs in the mitochondria?

Excretion to remove waste products from the cell.

Respiration-to release energy needed for the cell to work.

Protein synthesis to produce amino acids for growth.

Photosynthesis to convert sunlight into energy.

Mitochondria are known as the powerhouse of the cell where cellular respiration takes place to generate ATP for energy.

Explanation

Mitochondria are known as the powerhouse of the cell where cellular respiration takes place to generate ATP for energy.

5. What is found in the cytoplasm and what is its primary function?

Stores genetic material and regulates cell growth.

Conatains enzymeswhere chemical reactions happen

Aids in protein synthesis and cellular respiration.

Provides structural support and protects the cell from external environment.

The cytoplasm is a jelly-like substance that fills the cell and contains enzymes where various chemical reactions take place, contributing to the cell's metabolism and function.

Explanation

The cytoplasm is a jelly-like substance that fills the cell and contains enzymes where various chemical reactions take place, contributing to the cell's metabolism and function.