Biology 168 Test 1 CORRECT 100%
Levels of Organization - ANSWER Cell
tissue
organ
organ system
organism
Homeostasis - ANSWER ability to maintain internal stability
Positive feedback - ANSWER output enhances the original stimulus
ex. childbirth: oxytocin released w/ contractions. Ends oxytocin and positive feedback
when baby is born.
Negative Feedback - ANSWER Output reduces original effect of the stimulus
ex. thermostat set at 70. Heat turning on/off to maintain 70 degrees.
Frontal Plane - ANSWER
Transverse Plane - ANSWER
Sagittal Plane - ANSWER
Superior Plane - ANSWER head is superior to toes (above)
Inferior Plane - ANSWER toes are inferior to head (below)
Posterior Plane - ANSWER behind/bottom
Anterior Plane - ANSWER infront/ontop
Lateral Plane - ANSWER further from midline of the body
Medial Plane - ANSWER closer to midline of the body
Proximal Plane - ANSWER closest to point of reference
Distal Plane - ANSWER furthest from point of reference
Plasma Membrane definition - ANSWER selectively permeable to ions and organic
molecules. Controls movement of substances in and out of cells.
Plasma Membrane function - ANSWER To protect a cell from the surroundings.
, Why is Plasma Membrane Important? - ANSWER Without it, bad toxins and other
chemicals/viruses could get into cells easier.
What is the Plasma Membrane made up of? - ANSWER 2 layers of phospholipids,
cholesterol, glycolipids, and proteins
Passive Transport Definition - ANSWER Moving through the cell membrane with out
input of energy
When would cells use Passive Transport? - ANSWER diffusion of a cell across a
membrane
Active Transport Definition - ANSWER Materials move against concentration gradient
and energy is used.
When would cells use Active Transport? - ANSWER If cells need to go up concentration
gradient
Extracellular Matrix - ANSWER meshwork of proteins and carbs that binds cells or
divide tissues made of insoluble and soluble fibers.
Interstitial Fluid - ANSWER Fluid that surrounds the body's cells
Extracellular Matrix is produced by? - ANSWER fibroblasts, osteoblasts, chondrocytes
Components of nucleotide monomer - ANSWER nitrogenous base and a phosphate
group
lipolysis - ANSWER hydrolysis reaction resulting in the release of adipose connective
tissue into the blood
metabolism types - ANSWER anabolism and catabolism
where does metabolism occur - ANSWER in the body's cells
anabolism - ANSWER synthesis of larger molecules from smaller ones, dehydration
synthesis
catabolism - ANSWER hydrolysis, breakdown of large molecules
Glycolysis definition - ANSWER metabolic process that breaks down cars and sugars
through a series of reactions to either pyruvic acid or lactic acid. Releases energy for
body as ATP
Levels of Organization - ANSWER Cell
tissue
organ
organ system
organism
Homeostasis - ANSWER ability to maintain internal stability
Positive feedback - ANSWER output enhances the original stimulus
ex. childbirth: oxytocin released w/ contractions. Ends oxytocin and positive feedback
when baby is born.
Negative Feedback - ANSWER Output reduces original effect of the stimulus
ex. thermostat set at 70. Heat turning on/off to maintain 70 degrees.
Frontal Plane - ANSWER
Transverse Plane - ANSWER
Sagittal Plane - ANSWER
Superior Plane - ANSWER head is superior to toes (above)
Inferior Plane - ANSWER toes are inferior to head (below)
Posterior Plane - ANSWER behind/bottom
Anterior Plane - ANSWER infront/ontop
Lateral Plane - ANSWER further from midline of the body
Medial Plane - ANSWER closer to midline of the body
Proximal Plane - ANSWER closest to point of reference
Distal Plane - ANSWER furthest from point of reference
Plasma Membrane definition - ANSWER selectively permeable to ions and organic
molecules. Controls movement of substances in and out of cells.
Plasma Membrane function - ANSWER To protect a cell from the surroundings.
, Why is Plasma Membrane Important? - ANSWER Without it, bad toxins and other
chemicals/viruses could get into cells easier.
What is the Plasma Membrane made up of? - ANSWER 2 layers of phospholipids,
cholesterol, glycolipids, and proteins
Passive Transport Definition - ANSWER Moving through the cell membrane with out
input of energy
When would cells use Passive Transport? - ANSWER diffusion of a cell across a
membrane
Active Transport Definition - ANSWER Materials move against concentration gradient
and energy is used.
When would cells use Active Transport? - ANSWER If cells need to go up concentration
gradient
Extracellular Matrix - ANSWER meshwork of proteins and carbs that binds cells or
divide tissues made of insoluble and soluble fibers.
Interstitial Fluid - ANSWER Fluid that surrounds the body's cells
Extracellular Matrix is produced by? - ANSWER fibroblasts, osteoblasts, chondrocytes
Components of nucleotide monomer - ANSWER nitrogenous base and a phosphate
group
lipolysis - ANSWER hydrolysis reaction resulting in the release of adipose connective
tissue into the blood
metabolism types - ANSWER anabolism and catabolism
where does metabolism occur - ANSWER in the body's cells
anabolism - ANSWER synthesis of larger molecules from smaller ones, dehydration
synthesis
catabolism - ANSWER hydrolysis, breakdown of large molecules
Glycolysis definition - ANSWER metabolic process that breaks down cars and sugars
through a series of reactions to either pyruvic acid or lactic acid. Releases energy for
body as ATP
