The Lowest Level of Biological Organization That Can Perform All

question 36

Multiple Choice

The lowest level of biological organization that can perform all the activities required for life is the

• A)organelle-for example, a chloroplast.
• B)cell-for example, a skin cell.
• C)tissue-for example, nervous tissue.
• D)organ system-for example, the reproductive system.
• E)organism-for example, an amoeba, dog, human, or maple tree.

Understand the relationship between enzyme-substrate ratio and reaction rates.

Explain how cells modify metabolic pathways to adapt to changing conditions.

Identify the characteristics and effects of enzymes with multiple active sites.

Recognize the importance of vitamins as coenzyme precursors and the consequences of their deficiencies.

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Definitions:

Visual Stimulus

Any object, environment, or image that elicits a visual response or reaction by being perceived through the sense of sight.

Nervous System

The network of nerve cells and fibers that transmits nerve impulses between parts of the body, coordinating bodily functions and responses.

A-delta Fibres

Myelinated nerve fibers primarily involved in the transmission of sharp, acute pain signals to the brain.

C fibres

Slow-conducting nerve fibers involved in transmitting thermal, mechanical, and chemical pain stimuli to the central nervous system.