Physiology - TRUE or FALSE

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Chloride (Cl-) is necessary for muscle contraction, as well as for building strong bones.

FALSE NOTE: Chloride is necessary for nervous transmission.

Enzymes are protein catalysts that block a chemical reaction.

FALSE NOTE: Enzymes are protein catalysts, which increase the rate of chemical reactions without being affected by the reaction.

A cell performs all the activities necessary to maintain life except for excretion.

FALSE: A cell performs all the activities necessary to maintain life, including excretion.

A horizontal or transverse plane is any plane dividing the body into left and right portions.

FALSE: A horizontal or transverse plane divides the body into superior and inferior portions.

It is useful to describe the body as having imaginary curved geometric surfaces passing through it called planes.

FALSE: It is useful to describe the body as having imaginary flat geometric surfaces passing through it called planes.

Organs are organized into tissues.

FALSE: Tissues are organized into organs.

The ventral cavity contains organs of the nervous system.

FASLE: The ventral cavity contains organs that are involved in maintaining homeostasis or a constant internal environment.

Energy storage is the more common function of carbohydrates.

TRUE NOTE: Carbohydrates have two important functions: energy storage and cell strengthening. Energy storage is the more common function of carbohydrates.

The cells in muscle tissue are so long that they are often referred to as muscle fibers.

TRUE NOTE: Muscle tissue is characterized by elongated cells (so long, in fact, they are often referred to as muscle fibers).

Pleural is the term that refers to the covering of the lungs.

TRUE NOTE: Pleural is the term that refers to the covering of the lungs.

A midsagittal plane vertically divides the body through the midline into two equal left and right portions or halves.

TRUE NOTE: A midsagittal plane vertically divides the body through the midline into two equal left and right portions.

A sagittal plane is any plane parallel to the midsagittal or median plane, vertically dividing the body into unequal right and left portions.

TRUE NOTE: A sagittal plane is any plane parallel to the midsagittal or median plane, vertically dividing the body into unequal right and left portions.

ATP is the high-energy fuel molecule that the cell needs in order to function.

TRUE NOTE: ATP allows the body cells to do work.

Cardiac muscle is found only in the heart.

TRUE NOTE: Cardiac muscle is found only in the heart.

The organs of any cavity are referred to as the viscera

TRUE NOTE: The organs of any cavity are referred to as viscera.

The term parietal refers to the walls of a cavity.

TRUE NOTE: The term parietal refers to the walls of a cavity.

Our liver converts toxic ammonia to a harmless substance called urea through its enzymes.

TRUE NOTE: Through enzymes, the liver converts toxic ammonia to a harmless substance called urea.

Water serves as a medium or solvent in which other reactions occur, and water is referred to as the universal solvent.

TRUE NOTE: Water serves as a medium or solvent in which other reactions occur, and water is referred to as the universal solvent

19. The plasma membrane of cells is a selectively permeable membrane.

TRUE NOTE: The plasma membrane of cells is a selectively permeable membrane.


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