.....Each of the following is an example of an inorganic compound, except
bases. |
||
rocks. |
||
salts. |
||
acids. |
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water. |
A.... Carbohydrates, lipids, and proteins are classified as
organic molecules. |
||
bases. |
||
acids. |
||
salts. |
||
inorganic molecules. |
B .... Which of the following substances would be most acidic?
white wine, pH = 3 |
||
tomato juice, pH = 4 |
||
urine, pH = 6 |
||
lemon juice, pH = 2 |
||
stomach secretions, pH = 1 |
C ... A(n) ________ removes hydrogen ions and a(n) ________ releases hydrogen ions.
base; acid |
||
compound; element |
||
molecule; acid |
||
element; compound |
||
acid; base |
D ... Because water has a high heat of vaporization it
serves as an excellent lubricant |
||
participates in chemical reactions |
||
dissolves many substances |
||
provides an excellent cooling mechanism |
E...If a substance has a pH that is greater than 7, it is
acidic. |
||
a salt. |
||
a buffer. |
||
neutral. |
||
alkaline. |
F ....The primary high energy molecule formed and used in the cell is
ATP |
||
DNA |
||
glucose |
||
RNA |
G...Hydrophilic molecules readily associate with
water molecules. |
||
hydrophobic molecules. |
||
lipid molecules. |
||
both A and B |
||
all of the above |
H...All of the following are true concerning enzymes, except that they
have an active site |
||
are proteins. |
||
are consumed during the reaction. |
||
affect the rate of a chemical reaction. |
||
function as biological catalysts. |
I....Which of the following statements about water is not correct?
can dissolve many substances |
||
is responsible for much of the mass of the human body |
||
is composed of polar molecules |
||
contains hydrogen bonds |
||
has a relatively low heat capacity |
In: Anatomy and Physiology
In: Anatomy and Physiology
A neuron is poisoned with a chemical, which is an inhibitor of the Na+-K+ ATPase. Explain what would happen to the resting membrane potential (RMP) of the cell (will it depolarize, hyperpolarize or remain the same). In your answer,
a.)identify the three factors that determine RMP in a neuron,
b.) identify whether each factor causes membrane potential to be more or less negative, and
c.) explain whether or not the chemical would affect each factor.
In: Anatomy and Physiology
In: Anatomy and Physiology
What role does the liver play in digestion (list and explain 3 or more things the liver does)? What happens to the body if the liver is not functioning well?
In: Anatomy and Physiology
1. What role does each of the cells below play in the maintenance of the alveolus?
great alveolar cell:
squamous alveolar cell:
alveolar macrophage:
2. In addition to classifying the respiratory anatomy according to location (upper and lower respiratory tract), we also classify respiratory anatomy according to function—the conducting and respiratory divisions. What is the essential difference between them? • Conducting division: • Respiratory division:
3. Which structures are part of the respiratory division?
4. During ventilation, where does O2 come from and where is it going?
In: Anatomy and Physiology
In: Anatomy and Physiology
3. What is the best means of including antioxidants in your diet?
In: Anatomy and Physiology
In: Anatomy and Physiology
A. Axillary B. femoral C. fibular D. obturator E. radial F. phrenic G. ulnar
______ Forms from the cervical plexus.
______ Damage to this nerve would prevent extension at the knee.
______ Stimulation of this nerve would trigger adduction at the hip.
______ Damage to this nerve might weaken flexion at the wrist.
A. ventral root B. ventral horn C. ventral ramus D. dorsal root E. dorsal horn F. dorsal ramus
______ Origin of somatic motor neurons.
______ Contains only sensory fibers.
______ Carries only fibers connecting to the central region of the back.
In: Anatomy and Physiology
This is for chapters 13, 14, 15, and 16 in the anatomy SALDIN textbook, I am really struggling please give as many details as possible I haven't been getting full credit from the answers I have received from here.. THANK YOU SO SO MUCH.
1. How does accommodation of muscle spindles figure in the importance of stretch routines as a warm-up for exercise?
2. Lionel suffered a ruptured artery in his middle cranial fossa. As a consequence a pool of blood compressed his left optic tract, destroying its fibers. What part of the visual field was blinded?
3. Ralph sustained a leg injury in a bowling accident and had to use crutches. Unfortunately, he never took the time to learn how to use them properly. After two weeks of use, he noticed his fingers were becoming numb and then noticed his arms were getting weaker and tingling. Explain what you think could be his problem.
4. After surgery, patients are often temporarily unable to urinate, and bowel sounds are absent. What division of the ANS is affected by anesthesia?
5. Describe how vibration of the tympanic membrane ultimately produces fluctuations of membrane voltage in a cochlear hair cell?
In: Anatomy and Physiology
A. Basal nucleus C. Hypothalamus E. Precentral gyrus G. Superior colliculus
B. Cerebellum D. Inferior colliculus F, Postcentral gyrus H. Insula
______ Primary sensory area.
______ Suppress unwanted motor activity.
______ Involved in auditory reflexes.
______ Controls some endocrine functions.
In: Anatomy and Physiology
a. Contain the pigmented protein hemoglobin
b. Are biconcave meaning that they have 2 nuclei
c. Transport oxygen, and are the most abundant of all the blood cells
d. All of the above are true concerning RBC’s
e. Only A & C are correct
In: Anatomy and Physiology
In: Anatomy and Physiology
Why can cancers of endocrine glands lead to hormonal imbalances?
In: Anatomy and Physiology