BIOS 251 EXAM 2 EXAM LATEST

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BIOS 251 EXAM 2 EXAM LATEST

ACTUAL QUESTIONS AND CORRECT VERIFIED

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Movement of water across semipermeable membrane from low solute concentration to high solute concentration - ANSWER-Osmosis

Solutions have high ECF osmolarity, water moves out of cell, cell shrinks - ANSWER- Hypertonicity

Solutions have same osmolarity, no net movement of water in or out of cell - ANSWER- Isotonicity

Solutions have low ECF osmolarity, water moves into the cell causing swelling and potential bursting - ANSWER-Hypotonicity

What tonicity are most intravenous (IV) solutions? - ANSWER-Isotonic Solution

Utilizes energy to move substances against the concentration gradient; from lower to higher concentration 1 / 3

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Depends on factors: ATP, Membrane proteins, Concentration of molecules, Membrane potentials - ANSWER-Active Transport

Movement of material that is due to the electrochemical gradient established by primary active transport - ANSWER-Secondary Active Transport

Process by which a cell takes material into the cell by infolding of the cell membrane (uses ATP)

• ANSWER-Endocytosis

Process by which a cell releases large amounts of material (Uses ATP) - ANSWER-Exocytosis

A type of endocytosis that means "cell drinking", brings fluids into cell - ANSWER-Pynocytosis

Gel-like fluid within cells; also known as cytosol - ANSWER-Intracellular Fluid (ICF)

Fluid outside cells; sometimes called tissue fluid, and includes plasma - ANSWER-Extracellular Fluid (ECF)

Glands that secrete substances outward through a duct - ANSWER-Exocrine Glands 2 / 3

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Glands that produce sweat; found over most of the body. Found in the dermis; sometimes hypodermis. - ANSWER-Eccrine Glands or Merocrine Glands

Sweat glands in the pubic and underarm areas that secrete thicker sweat, that produce odor when come in contact with bacteria on the skin - ANSWER-Apocrine Glands

Ductless glands that empty their hormonal products directly into the blood.

For example: thyroid, adrenal, and pituitary glands - ANSWER-Endocrine Glands

Exocrine glands whose secretions are made up of disintegrated cells.

For example: oil glands of scalp and skin, and glands of eyelids - ANSWER-Holocrine Glands

Sheets of tightly packed cells that covers body surfaces, lines body cavities, and forms glands - ANSWER-Epithelial Tissue

• Single layer of flattened cells
• Permits rapid diffusion or transport of substances
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