Additional Study Questions for Module 2

The basic unit of structure and function in the human body is:

• Tissue

• Organ

• Cell

• atom

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Differentiated is defined as:

• Made different or specialized

• Kept the same

• Ignored or neglected

• Combined together

Different cell types differ from one another in which of the following ways?

• They have different structures and functions.

• They all have the same structure and function.

• They are all the same size and shape.

• They contain identical genetic material.

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The three major parts of every cell are:

• Cell membrane, cytoplasm, nucleus

• Cell wall, mitochondria, ribosome

• Chloroplast, vacuole, lysosome

• Golgi apparatus, endoplasmic reticulum, centriole

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An organelle is defined as:

• A specialized structure within a cell that performs a specific function.

• A type of tissue found in animals.

• A molecule that carries genetic information.

• A process by which cells divide.

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The cell membrane is selectively permeable and is made of which of the following?

• It is made of a phospholipid bilayer and controls what enters and leaves the cell.

• It is made of cellulose and allows all substances to pass freely.

• It is made of proteins only and blocks all molecules.

• It is made of DNA and is impermeable to water.

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The major classes of biomolecules found in the plasma/cell membrane and their functions include:

• Lipids, proteins, and carbohydrates, which provide structure, transport, and cell recognition.

• Nucleic acids, lipids, and vitamins, which provide genetic information and energy.

• Proteins, nucleic acids, and minerals, which provide enzymatic activity and bone structure.

• Carbohydrates, vitamins, and hormones, which provide energy storage and signaling.

Ribosomes are responsible for which function and where are they typically found?

• Protein synthesis; found in the cytoplasm and on the endoplasmic reticulum

• Energy production; found in the mitochondria

• DNA replication; found in the nucleus

• Lipid storage; found in the Golgi apparatus

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The two types of endoplasmic reticulum and their functions are:

• Rough ER (protein synthesis) and Smooth ER (lipid synthesis)

• Rough ER (lipid synthesis) and Smooth ER (protein synthesis)

• Rough ER (energy production) and Smooth ER (photosynthesis)

• Rough ER (cell division) and Smooth ER (waste removal)

The functions of vesicles include:

• Transporting substances within the cell

• Producing energy for the cell

• Controlling cell division

• Synthesizing DNA

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