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Jennifer Walos
Jennifer Walos- Physiology Ch. 1-6
| Question | Answer |
|---|---|
| Negative-feedback control systems and Positive feedback control systems... | Negative- Oppose a change Positive- Accelerate a change |
| What term describes a signal traveling toward a particular center or point of reference? | afferent |
| Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease? | Prion |
| If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? | Oxytocin would inhibit uterine contractions. |
| Which lipid is part of vitamin D | Steroids |
| A structural lipid found in the cell membrane is a | phospholipid and steroid |
| Uterus contraction during childbirth would be an example of what kind of feedback? | Positive feedback |
| T/F A triglyceride is composed of a glycerol molecule and three of the same type of fatty acid | FALSE |
| Term meaning "water loving" | Hydrophilic |
| A saturated fatty acid is one in which | all available bonds of its hydrocarbon chain are filled. |
| DNA base pairing molcules | Adenine is bound to Thymine |
| functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | Free radicals |
| meiosis is | four daughter cells that are haploid |
| Transcription can best be described as the | synthesis of mRNA. |
| DNA replication occurs in which interphase phase | S phase |
| RNA makes proteins by | Translation |
| Mitosis is subdivided into four phases | Prophase Anaphase Metaphase Telophase |
| NaCl would move through the cell membrane in which direction? | Both into and out of the cell |
| Ectoderm | Epidermis, glands on skin, some cranial bones, pituitary and adrenal medulla, nervous system, the mouth between the cheek and gums, the anus. |
| Medoderm | Connective tissues proper, bone, cartilage, blood, endothelium of blood vessels, muscle, synovial membranes, serous membranes lining body cavity, kidneys, lining of gonads |
| Endoderm | Lining of airways and digestive system except mouth and distal part of digestive system. |
| In which skin layer does the process of keratinization begin? | Stratum granulosum |
| The hair papilla consists of _____ tissue. | dermal |
| Basement membrane is composed of molecules made by what tissue | Epithelial and connective tissue |
| Why is cartilage slow to heal? | because it is semi-solid and flexible and because it does not have a blood supply |
| In bone growth, the medullary cavity is enlarged because of the activity of: | osteoclasts |
| T/F Because of how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. | TRUE |
| A contraction in which muscle length remains the same but muscle tension increases is called an | isometric contraction |
| The shoulder joint is an example of a _____ joint. | Multiaxial, freely movable, and ball and socket |
| An example of a pivot joint is(are) the: | head of the radius articulating with the ulna. |
| The substance that attracts oxygen in the myoglobin molecule is: | Iron |
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JenWalos
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