BIOS 252 Study guides, Class notes & Summaries

BIOS 252 CHAMBERLAIN UNIVERSITY EXAM 2023/2024 100% ACCURATE QUESTIONS AND ANSWERS EXPERT VERIFIED LATEST UPDATE

BIOS 252 COMPREHENSIVE EXAM 2023 LATEST UPDATE VERIFIED QUESTIONS AND ANSWERS| GUARANTEED PASS| LATEST UPDATE 2023/2024

Which of the following is not considered a region of the spinal cord? Sacral Thoracic Pelvic Cervical - ANSWER Pelvic The spinal cord is housed in what structure? The skull The ribs The vertebral canal The pelvic bowl - ANSWER The vertebral canal An image of a cross section of the spinal cord would show anterior (or ventral) horns. What is in that region? Cell bodies of motor neurons White matter

What happens in homogenization? - ANSWER The plasma membranes of cells can be ruptured so that the cell contents are released. What are the 4 commonly used homogenization procedures used? - ANSWER High-frequency sound (ultrasound) Mild detergent to make holes in the plasma membrane Force cells through a small hole using high presssure

digestive tract (aka GI tract) - ANSWER Covering an internal lumen (which is actually "outside" the body) The disassembly line of our body accessory digestive organs - ANSWER Teeth, pancreas, assisting in mechanical and chemical digestion Which of the following best describes the role of the esophagus in digestion? - ANSWER Connects the mouth to the stomach and has no role in chemical digestion It's role is just propulsion 3 roles of the stomach - ANSWER 1. Storage facility. Most ...

functions of the male reproductive system - ANSWER produce gametes (sperm) synthesis of androgens (males sex hormones) delivery of sperm into the female reproductive tract accessory male reproductive glands - ANSWER seminal vesicles prostate bulbourethral glands testes are external because - ANSWER sperm needs to be 3 degrees cooler than body temp to stay alive spermatogonia - ANSWER stem cells that reside at the periphery of the seminiferous tubules, undergoing mitosis steps of ...

kidney functions - ANSWER filter plasma and excrete toxic metabolic wastes; regulate blood volume, pressure, and osmolarity via water output; regulate electrolyte and acid-base balance; secrete erythropoietin; regulate Ca2+ homeostasis and bone metabolism by participating in synthesis of calcitriol; clear hormones and drugs from blood; detoxify free radicals; and help support glucose level in conditions of extreme starvation waste - ANSWER any substance that is useless to the body or present ...

What are the essential components of an experiment? - ANSWER -Reproducible -Reliable -Control -Well designed variables What is selective permeability? - ANSWER Not all substances pass through a membrane with equal ease. What is betacyanin and where is it found? - ANSWER It is the red pigment found in the large central vacuoles of beet roots. What is a tonoplast? - ANSWER A vacuole me

Is skeletal muscle always attached to bone? - ANSWER no, example is the tongue the sliding filament theory - ANSWER -sufficient evidence to prove theory -upon stimulation, the myosin heads bind to actin and sliding begins -thin filaments slide past thick ones -Z-disc becomes shorter -heads will leave one binding site and move to the next -elastic fibers bring the thin filaments back to their original state (elasticity) -A band stays the same -sarcomere shortens -myosin section becomes...

CNS - ANSWER brain and spinal cord PNS - ANSWER Cranial nerves and spinal nerves (nerves and sensory receptors) somatic nervous system - ANSWER division of PNS skeletal muscles (muscles attached to our bones). Diaphragm is somatic because it is skeletal but it is inside the body. autonomic nervous system - ANSWER division of PNS smooth (intestines, blood vessels) and cardiac (heart muscles) muscles, glands (cells or many cells that can synthesize and secrete molecules to the body) ...

Arctic ozone dent - ANSWER Area of stratosphere over arctic region where ozone concentrations are low Climate change - ANSWER Directional change in climate over a period of 3+ decades Greenhouse effect - ANSWER Warming of the earth by gasses in atmosphere that absorb and rereadiate infrared energy emitted by earth's surface Greenhouse gasses - ANSWER Atmospheric gases that absorb and reradiate the infrared radiation emitted by earth's surface (H2O, CO2, CH4, and N2O) Aerosols - ANS...

When compared to a classic lever system, the synovial joins our musculoskeletal system play the role of the______. - ANSWER fulcrum Which of the following events will occur when depolarizing graded potentials reach the membrane of the axon hillock, causing it's membrane potential to reach threshold? - ANSWER voltage-gated Na+ channels open rapidly The attachment of a muscle's tendon to the stationary bone is called the___; the attachment of the muscle's other tendon to the moveable bone...