Chapter 8 Test - Cells

Which of the following statements is part of the cell theory?

• Cells are composed mostly of empty space.
• Cells are generally large enough for the unaided eye to see.
• All cells are produced from existing cells.
• Only animals are made up of cells.

The cells of all organisms contain DNA. In cells of which of the following groups is the cellular DNA enclosed in a nucleus?

• bacteria
• eukaryotes
• prokaryotes
• viruses

A number of scientists made contributions to cell theory. Which scientist was the first to use a light microscope to observe cells in a slice of cork?

• Anton van Leeuwenhoek
• Matthias Schleiden
• Robert Hooke
• Theodor Schwann

Use the image to answer the question: The cell is ____________ because it ____________.

• prokaryotic, does not contain a nucleus
• eukaryotic, does contain a nucleus
• prokaryotic, does contain a nucleus
• eukaryotic, does not contain a nucleus

All cells contain cell membranes. Which of the following describes the composition of cell membranes?

• Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell.
• Cell membranes are composed of cellulose, which provide rigidity for the cell.
• Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell.
• Cell membranes are composed of lipid molecules, which provide a flexible structure.

Which organelles allow plants to support heavy structures such as leaves and flowers?

• the cell membranes because they regulate what enters and leaves the cells
• the chloroplasts because they convert sunlight into chemical energy
• the Golgi apparatus because it packages proteins for storage in the cells
• the vacuoles because they are filled with fluid, which provide rigidity

A structure within a eukaryotic cell that carries out specific activities inside the cell is called a(n)

• nucleus
• cytoplasm
• organelle
• membrane

The organelle that modifies, sorts, and packages proteins into vesicles is the

• endoplasmic reticulum
• ribosome
• Golgi Apparatus
• lysosome

Plant cells have a large membrane-bound compartment in which water, waste, and nutrients can be stored. This compartment is called the

• mitochondria
• chloroplast
• Golgi Apparatus
• vacuole

Removing materials from a cell in vesicles is called

• diffusion
• exocytosis
• endocytosis
• osmosis