TEAS Science Practice Test #5 2 Flashcards
6 cards from real TEAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 TEAS Science Practice Test #5 2 flashcards as text
What is the role of the cerebellum in the brain?
Answer: To coordinate voluntary movement, balance, and posture
The cerebellum (Latin for "little brain") is located at the back of the brain and is responsible for coordinating voluntary movements, maintaining balance and posture, and fine-tuning motor activity for smooth, precise movement.
Which of the following correctly describes an "exothermic" chemical reaction?
Answer: A reaction that releases energy (heat) to the surroundings
An exothermic reaction releases energy (usually as heat) to the surroundings, so the products have less energy than the reactants. Combustion (burning) and many oxidation reactions are exothermic. Endothermic reactions absorb energy.
Which blood vessels carry oxygenated blood from the lungs to the heart?
Answer: Pulmonary veins
Pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart — the only veins in the body that carry oxygenated blood. Pulmonary arteries carry deoxygenated blood from the right ventricle to the lungs.
What is the term for an organism that can cause disease in a host?
Answer: Pathogen
A pathogen is any microorganism (bacterium, virus, fungus, parasite) capable of causing disease in a susceptible host. Pathogens overcome host defenses and damage tissues, triggering symptoms of infection.
Which property of water makes it an effective solvent for biological molecules?
Answer: Its polar nature and ability to form hydrogen bonds
Water is a polar molecule with a slight negative charge on the oxygen and slight positive charges on the hydrogens. This allows it to form hydrogen bonds with and dissolve other polar and ionic molecules, making it the "universal solvent" for biological processes.
During which phase of mitosis do the chromosomes line up along the middle of the cell?
Answer: Metaphase
During metaphase, chromosomes align at the cell's equatorial plate (metaphase plate) in the middle of the cell, attached to spindle fibers. This alignment ensures equal distribution of chromosomes when the cell divides.