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P final exam 1-50
| Question | Answer |
|---|---|
| The body’s thermostat is located in the: | hypothalamus |
| Positive-feedback control systems: | accelerate a change |
| Of the 11 major body systems, which is the least involved in maintaining homeostasis? | reproductive |
| Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: | viruses |
| Negative-feedback mechanisms: | minimize changes in blood glucose levels. maintain homeostasis. are responsible for an increased rate of sweating when air temperature is higher than body temperature. ALL OF THE ABOVE ARE CORRECT |
| Which of the following may put one at risk for developing a given disease? | Environment Stress Lifestyle All of the above |
| Shivering to try to raise your body temperature back to normal would be an example of: | the body trying to maintain homeostasis. a negative-feedback mechanism. both A & C!!! |
| 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 |
| The contraction of the uterus during the birth of a baby is an example of _____ feedback. | positive |
| The term that literally means self-immunity is: | Autoimmunity |
| The normal reading or range of normal is called the: | set point |
| Of the 11 major body systems, which is the least involved in maintaining homeostasis? | reproductive |
| Pathogenesis can be defined as: | the course of disease development. |
| Negative-feedback control systems: | oppose a change |
| Intrinsic control: | is sometimes called autoregulation |
| Which level of protein structure refers to the number, kind, and sequence of amino acids? | primary |
| Which lipid is part of vitamin D? | steroids |
| If one side of a DNA molecule is CTAGGCTG, the other side would be: | GATCCGAC. |
| Which of the following is not true of both triglycerides and phospholipids? | They both contain a hydrophobic and hydrophilic end. |
| Peptide bonds join together molecules of: | amino acids |
| Unsaturated fats: | will kink or bend because of the double bonds between the carbon atoms. |
| DNA | is a double helix strand of nucleotides |
| A _____ is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | free radical |
| Which lipid acts as a “tissue hormone”? | Prostaglandin |
| Amino acids frequently become joined by: | peptide bonds |
| Sometimes referred to as animal starch, _____ is the main polysaccharide in the body. | glycogen |
| The formation of sucrose involves the removal of a molecule of water. This is called: | dehydration synthesis |
| Which energy-releasing or energy-transferring molecule does not contain a nucleotide? | Creatine phosphate |
| The alpha helix is an example of which level of protein structure? | secondary |
| The element that is present in all proteins but not in carbohydrates is: | nitrogen |
| Hematopoietic tissue can be found in the: | bones |
| Which type of tissue has the greatest capacity to regenerate? | epithelial |
| Which of the following vitamins is(are) absorbed through the skin? | itamin A Vitamin D Vitamin K ALL OF THE ABOVE |
| Which of the following is not a characteristic of skeletal muscles? | Having one nucleus per cell |
| Which of the following epithelial functions is a primary activity of glandular epithelium? | secretion |
| Which is not a function of connective tissue? | communication |
| Basement membrane is composed of molecules made by _____ tissue. | connective epithelial Both B and C are correct. |
| Which of the following is not a characteristic of connective tissue? | Typically holds its cells together tightly by means of desmosomes |
| Which tissue is most likely to form a keloid scar as it heals? | connective |
| Which is not a function of epithelial tissue? | assimilation |
| The hypodermis: | connects the dermis to underlying tisssues |
| Which cells help destroy pathogens and damaged tissue in the brain? | Microglia |
| Connective tissue forms from stem cell tissue called: | mesenchyme |
| The papillary layer of the dermis: | produces the ridges that make fingerprints. |
| Which of the following is not a characteristic of muscle tissue? | Cells are separated by a large quantity of extracellular matrix |
| Calcification of the organic bone matrix occurs when | complex calcium salts are deposited in the matrix. |
| Until bone growth in length is complete, a layer of the cartilage, known as the _____, remains between the epiphysis and diaphysis. | epiphyseal plate |
| In intramembranous ossification, the process of appositional growth refers to the: | addition of an outside layer of osseous tissue on flat bones. |
| Please select the bone positioned most superiorly on the human skeleton | frontal |
| The humerus articulates proximally with the clavicle. | False |
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