APHY 101 IVYTECH test 1, midterm, test 3, final
Signs of aging at the cellular level are:
impaired cell division and the ability to break down and recycle worn cell parts.
In all organisms, the basic unit of structure and function is
The cell
The thoracic cavity lies _____________ the ...
APHY 101 IVYTECH test 1, midterm, test 3, final
Signs of aging at the cellular level are:
impaired cell division and the ability to break down and recycle worn cell parts.
In all organisms, the basic unit of structure and function is
The cell
The thoracic cavity lies _____________ the abdominopelvic cavity.
Superior to
The diaphragm separates the thoracic and the abdominopelvic cavities. T/F
True
Which action is the main function of the digestive system?
Absorption of nutrients
The oral, nasal, orbital, and middle ear cavities are in the dorsal cavity. T/F
False
The digestive system filters wastes from the blood. T/F
False
The elbow is distal to the wrist.
T/F
False
Which of the following characteristics of life and their descriptions are correct?
Circulation-the movement of substances in body fluids
The ears are lateral to the eyes.
T/F
True
In negative feedback mechanisms changes away from the normal state
stimulate changes in the opposite direction.
Homeostasis is the
tendency of the body to maintain a stable internal environment.
An anatomical section that separates the body into right and left portions is a __________ section.
sagittal
Which of the following lists best illustrates the idea of increasing levels of complexity?
,Organelles, cells, tissues, organs, organ systems
Which of the following is not true of organelles?
They are only in cells of humans
The anatomical term that indicates a structure close to the surface is
superficial
Nucleic acids are
composed of building blocks called nucleotides.
The secondary structure of a protein molecule is the result of
hydrogen bonds
A person with alkalosis has a blood pH less than 7.3. T/F
False
The formula H2O refers to
A molecule that contains two hydrogen atoms and one oxygen atom.
Which of the following is characteristic of carbohydrates?
all of the above
Which of the choices includes all acids?
Vinegar, grapes, tomatoes, and coffee
Lipids
All of the above
Electrolytes are substances that
ionize in water
An electrolyte ionizes in water.
T/F
True
The number of protons in an atom of an element always equals its atomic weight. T/F
False
A water solution that contains equal numbers of hydrogen ions and hydroxide ions is
neutral.
Which of the following substances is an element?
, Iron
Which of the following groups of compounds is hydrophobic?
Lipids
The atomic weight of an element whose atoms contain 8 protons, 8 electrons, and 8 neutrons is
16
A decomposition reaction can be symbolized by
AB → A + B.
The difference in hydrogen ion concentration between solutions with pH 4 and pH 5 is
tenfold
Chemistry is important to the study of physiology because
all of the above
Cancer can result if
mitosis is too frequent or does not stop.
In phagocytosis
a cell membrane engulfs solid particles.
If the concentration of glucose in the water outside of a cell is higher than the concentration inside
water will leave the cell by osmosis.
Cilia and flagella extend from certain cells, enabling them to move. T/F
True
Chromosomes duplicate during
Interphase
A cell that can divide to give rise to any cell type is
totipotent
During interphase, a cell rests. T/F
False
The organelle where energy is captured and stored in the chemical bonds of ATP is a
mitochondrion.
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Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not. T/F
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