DAT Study guides, Class notes & Summaries

Office Emergency Routine - ANS What routine is followed in order to prevent a minor emergency from becoming serious? each person performs assigned functions - ANS During an office emergency routine which members of the dental team have a role? -notify dentist of the emergency -administer basic life support if necessary -retrieve emergency kit -retrieve oxygen tank -retrieve hard backboard -assist dentist by preparing emergency drugs - ANS What roles does the...

The resting potential of a neuron arises due to which of the following? A. the concentration of potassium ions in the extracellular space is greater than the concentration of sodium ions inside the axon. B. the concentration of potassium ions in the extracellular space is less than the concentration of sodium ions inside the axon. C. The concentration of potassium ions in the extracellular space is equal to the concentration of sodium ions inside the axon. D. the concentration of sodium io...

assumptions of an ideal gas - ANS - ALL (g) molecules are in constant, rapid, and random motion - there are NO attractive OR repulsive forces between the gases - the V of the molecules is negligibly small compared to the V of the (g) - All collisions within the (g) are perfectly elastic What best explains why bromine is a liquid and iodine is a solid at STP? - ANS London dispersion forces increase as molar mass increases; greater the forces the higher the MP accurately...

If tan θ = 5/12 and sin θ > 0, then cos θ = ? a. -5/12 b. 12/13 c. 13/12 d. -12/13 e. 0 - ANS b. 12/13 tanθ = opp/adj = 5/12 c = sqrt(5^2 + 12^2) = sqrt(25 + 144) = sqrt(169) = 13 cosθ = adj/hyp = 12/13 If 60% of x equal to 30% of 20, then what is the value of (x + 5)^2? a. 25.25 b. 26 c. 26.01 d. 2025 e. 225 - ANS e. 225 0.6x = (0.3) x 20 → x = 10 (x + 5)^2 → (10 + 5)^2 = (15)^2 = 225 In the xy-plane, the point (4,3) and (3,2) are on li...

What does the endodermis do? - ANS regulates passage of substances from the soil into the vascular cylinder What is allelopathy? - ANS the chemical inhibition of one plant (or other organism) by another, due to the release into the environment of substances acting as germination or growth inhibitors. What is intraspecific competition? - ANS competition between members of the same species What is a deuterostome? - ANS blastopore becomes anus What is...

Albumin - ANS Family of globular proteins that are the most common protein found in blood plasma. It binds water, cations, fatty acids. Main function is to regulate osmotic pressure of the blood Chymotrypsin - ANS Is a digestive enzyme that is secreted by the duodenum. Breaks down proteins and polypeptides. Tyrosinase - ANS rate-limiting enzyme for controlling the production of melanin. Dynein - ANS is known as a "motor protein." used in chromosomal...

Who designed the Sorority Pin of Delta Sigma Theta? - ANS Founder Madree Penn White. What Greek letters are on the pin? - ANS D S T (Delta, Sigma, Theta) How many jewels are in the Sigma? - ANS 9 What do the jewels on Sigma represent? - ANS The Nine Cardinal Virtues What are the Nine Cardinal Virtues? - ANS Compassion, Courtesy, Dedication, Fellowship, Fidelity, Honesty, Justice, Purity, Temperance Which one of Delta Sigma Theta's pres...

Where is antidiuretic hormone stored in the body? A. Thyroid B. Pancreas C. Pineal gland D. Posterior pituitary E. Anterior pituitary - ANS D An otherwise healthy mother who consumes insufficient dietary vitamin B has four offspring that all produce insufficient growth hormone. What is the most likely connection? A. Epistatic link B. Polygenic link C. Common pleiotropic allele D. Epigenetic link E. No link, it was random - ANS D Which of the following transports...

A father's age is twice the sum of the ages of his four sons. In 30 years, the total of the sons' ages will be twice the age of their father. How old is the father now? a) 24 b) 48 c) 32 d) 40 e) 36 - ANS d) 40 If the sum of the four son's ages is x at present, the father's age is 2x. In 30 years, the total of the son's ages will be x+4×30=x+120, whereas the father's age will be 2x+30. Therefore, x+120=2(2x+30), which yields x=20, and hence, the father's age at present i...

An organism is found during a biopsy of lung tissue. It is determined to belong to the genus Streptococcus and is known to cause tuberculosis. What type of organism is this? - ANS Bacteria A botanist has discovered a new plant and notes that it is predominantly found in its gametophyte form. Which category does this plant most likely belong to? - ANS Bryophyte In the fetal circulatory system, the ductus venosus allows blood to bypass? - ANS Liver What would be...