Mohamed Abbas, a science teacher at Senioritis.io

Mohamed Abbas
June 20, 2023
Histology

Understanding the True Nature and Multiple Roles of Epithelial Tissue in Our Body.

Which statement is true about epithelial tissue?1.) epithelial tissue helps to protect the body from bacterial invasion2.) epithelial tissue can be glandular3.) epithelial tissue can be found...

Mohamed Abbas
June 20, 2023
Chemistry

Exploring Glycine: The Simplest and Smallest Amino Acid without a Chiral Center

What is the simplest amino acid? 1. Glycine, where R=H The simplest amino acid is glycine (Gly). Glycine is the only amino acid that does not have...

Mohamed Abbas
June 20, 2023
Medicine

The Truth about Insulin Sources: Debunking the Myth of Animal-Derived Insulin Still in Use in the US

True or False All US insulin products are from recombinant sources T False. Although most US insulin products are from recombinant sources, there are still some animal-derived...

Mohamed Abbas
June 20, 2023
Physiology

How does Cimetidine work to reduce stomach acid production?

A patient with a duodenal ulcer is treated successfully with the drug cimetidine. The basis for cimetidine’s inhibition of gastric H+ secretion is that it A. Blocks...

Mohamed Abbas
June 20, 2023
Public Health

Affordable Care Act’s Pay for Performance Incentive Programs for Improving Healthcare Quality

Which of the following are part of the Affordable Care Act (ACAs) pay for performance incentive programs: a. Hospital Value-Based Purchase Program b. Hospital Readmission Reduction Program...

Mohamed Abbas
June 20, 2023
Anatomy

Understanding Neuronal Communication: The Role of Threshold, Depolarization, and Frequency in Action Potential Initiation and Neurotransmitter Release

A series of local potentials causes the membrane potential to move to -80 mV. Predict the result.a. threshold is reachedb. depolarization occursc. the neuron is hyperpolarizedd. information...

Mohamed Abbas
June 20, 2023
Anatomy

Understanding Action Potential: How Sodium Ions Affect the Membrane Potential

Which of the following events is NOT a characteristic of an action potential?a. The plasma membrane becomes highly permeable to sodium ions and depolarization results.b. As sodium...

Mohamed Abbas
June 20, 2023
Anatomy

How Depolarization Triggers Action Potentials: Role of Voltage-Gated Sodium Channels in Electrically Excitable Cells

Which of the following situations occurs in electrically excitable cells?a. When Na+ ion channels open, K+ ion channels close.b. The sodium-potassium exchange pump moves sodium into the...