The Scholar's Depot: Where Knowledge Meets Opportunity

Most of the chemical reactions involved in cellular metabolism are regulated by the body____ - enzymes True/false Intramembranous ossification occurs primarily in the skull of the fetus- True Each of the following is a primary tissue except one. Identify the exception. Muscle tissue Connective tissue Nerve tissue Epithelial tissue Adipose tissue- Adipose tissue Depolarization of the sarcolemma at the myoneural junction occurs when____ - Acetylcholine binds to the receptors on...

What is spiteful behavior? (Who is benefited and harmed?) Give an example. Do we see this in nature? - Actor and recipient are harmed. Humans only Explain Kin Selection (give an example): - Selection that acts on this indirect component of fitness. For example honeybees and other social insects) What is direct fitness? - A measure of your own reproduction What is indirect fitness? - A measure of your personal fitness that comes from the reproductive success of your kin Hamilton...

Microbiology - study of microbes Fluorescence - visualization of fluorescent molecules that become excited under UV light Direct immunofluorescence - fluorescent stains Transmission electron microscope - visualization of internal structures; electrons are transmitted through specimen Scanning electron microscope - 3D image of specimen; electrons bounce off surface of specimen (gold dust) Macronutrients - needed in large amounts; organic compounds Micronutrients - needed ...

Which statement is correct? A. All strains of the species Escherichia coli have virtually the same genome size And gene content. B. DNA replication in prokaryotes makes a lot of mistakes, leading to mutation rates Of 1/1000. C. DNA replication in prokaryotes requires no primer. D. DNA replication in prokaryotes occurs at a single replication fork because their DNA is linear E. DNA replication always proceeds from the 5'-phosphate of the incoming Nucleotide to the 3'-hydroxyl group of ...

_________ is the bending of light as it passes from one medium to another of a different density. A. Reflection B. Refraction C. Transmission D. Absorption E. Emission - B. What is the difference between simple staining and differential staining? A. Simple staining provides color to an organism, but doesn't allow for viewing any differences between organisms. B. Simple staining is better to use for bacteria, but differential staining is better to use for yeast. C. Differential stain...

Glucose is a sugar found in: - most organisms Fructose is a sugar found in: - fruit Galactose is a sugar found in: - milk Ribose is a sugar found in: - RNA Deoxyribose is a sugar found in: - DNA Sucrose is a combination of: - glucose and fructose Sucrose is _________ sugar. - table Lactose is a combination of: - glucose and galactose Lactose is __________ sugar. - milk Maltose is two _____________ units. - glucose Starch, glycogen, and cellulose are ______...

A bluish coloring of the skin that occurs as a result of extreme cold, or of circulatory or respiratory disorders is called_____________ - cyanosis Structure produce black, yellow-brown, or brown pigment in intracellular vesicles? - melanocytes The superficial layer of the dermis consists of ______________ - loose connective tissue Which is a major function of the skeletal system? - support of the body In addition to osseous tissue, a typical bone contains________ - other connec...

Chagas Disease - - most prevalent in Central and South America, spread by vector (insect, hematophagous assassin bug) - Results in acute infection of the heart, damaging myocardium - Progressive, chronic heart disease - infected myocardium is replaced by scar tissue, resulting in thinning walls of the heart - Class iia indication for ICD placement Crosstalk - inappropriate detection of a pacemaker-generated event in one channel by the sensing amplifier of the other channel that causes in...

Minute ventilation is the product of - respiratory rate and tidal volume. Can be triggered by arm movements Parallel Circuit resistance? - R1 * R2/ R1+ R2 Battery capacitance of a pacemaker is given in? - Current Excitable Gap - area of tissue in front of fibrillating wave that could trigger a wave front block and terminate the tachycardia Percent tilt of an ICD waveform? - decline in leading edge voltage at the time of truncation 1 French size = - .3 mm Will increase DFT...

How does an IRL detect atrial fibrillation? - A fib creates an irregularly irregular ventricular pattern, which can be distinguished from most other svts. Ilrs can only sense ventricular beats, so this is the method they use to detect AF Why does time of day matter when analyzing IRL brady reports? - Patient rates are likely to be much slower at night when they are sleeping and do not necessitate a pacemaker In a single chamber device, if the pacing rate is faster than the programmed bas...