Chapter 3 Test: Cells the Living Units of Life

The basic unit of life is

• a cell

• a tissue

• an organ

• an organism

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idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells

• is the cell theory

• is the cell factor

• is the cellular composition

• is the theory of life

Over 200 different types of human cells. Types differ in size, shape, subcellular components, and functions

• cell diversity

• cell differentiation

• cell theory

• cell life

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The membrane at the boundary of every cell that acts as a selective barrier, thereby regulating the cell's chemical composition

• cell plasma

• cell membrane

• cell wall

• cell cycle

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A jellylike fluid inside the cell in which the organelles are suspended

• cell membrane

• cell junction

• cytoplasm

• cytology

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Control center of the cell

• mitochondria

• nucleus

• chloroplast

• cell membrane

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like tiny organs within cells.

• organelles

• organs

• cytoplasm

• nucleolus

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A selectively-permeable phospholipid bilayer forming the boundary of the cells

• cell wall

• cell membrane

• cell cytoplasm

• cell pores

mechanical barrier, selective permeability, electrochemical gradient, communication, cell signaling

• functions of the cell

• functions of the nucleus

• functions of the cell membrane

• functions of the cytoplasm

fluid within cells

• extracellular fluid

• intracellular fluid

• nucleus

• ribosomes