Cell Biology Multiple Choice Questions

Questions and Answers

To produce proteins

To protect and support the cell (correct)

To prevent oxygen from entering the cell

To control what enters and leaves a cell

Ribosome

Mitochondrion

Nucleus (correct)

Chloroplast

To control the multiplication of the cells

To produce proteins

To control which substances can enter or leave the cell (correct)

To form a hard outer covering for the cell

Plant cells contain chloroplasts while animal cells do not Signup and view all the answers

Vacuoles Signup and view all the answers

Having a true nucleus Signup and view all the answers

Responding to stimuli Signup and view all the answers

It allowed for the discovery of cells Signup and view all the answers

Study Notes

Cell Wall: Provides protection and support to the cell, giving it structure.
Nucleus: Known as the cell's control center; regulates cellular activities and stores genetic information.
Cell Membrane: Selectively permeable barrier that controls the entry and exit of substances in and out of the cell.

Electron Microscope: Magnification occurs when an electron beam creates a detailed image of the specimen.
Microscope Invention: Enabled the discovery of cells as basic units of life.

Cell Theory Principle: All cells arise from pre-existing cells, emphasizing the continuity of life.
Notable Misconception: Only living organisms, not nonliving matter, can produce cells.

Plant vs. Animal Cells: Plant cells contain chloroplasts for photosynthesis and have a rigid cell wall; animal cells lack these features.
Lysosomes: More prevalent in animal cells than in plant cells, aiding in waste breakdown.

Vacuoles: Serve as storage units for food, nutrients, and waste products in the cell.
Mitochondria and Chloroplasts: Mitochondria are the powerhouse of the cell, while chloroplasts enable photosynthesis in plant cells.

Eukaryotic Kingdoms: Includes Fungi and Animalia, characterized by complex cells with a nucleus.

Key characteristics include growth, response to stimuli, and reproduction; genetic material is fundamental but lacking a structural distinction in all living organisms.