Practice Science TEAS Test

Correct Answer: B

Rationale: Rationale: Sulfur (atomic number 16) typically has 16 protons and 16 electrons in a neutral state. A negative ion gains an electron, so it would have 16 protons, 16 neutrons, and 17 electrons to maintain charge neutrality. Therefore, choice B (16 neutrons, 17 electrons) is correct. Choices A, C, and D are incorrect as they do not account for the addition of an extra electron in the negative ion, resulting in an incorrect number of electrons.

Correct Answer: B

Rationale: The correct answer is B: Lipids. Lacteals are lymphatic vessels located in the small intestine that absorb dietary fats (lipids) and fat-soluble vitamins. They play a crucial role in the absorption and transport of lipids into the bloodstream. Carbohydrates are primarily absorbed in the form of glucose through the villi, not the lacteals. Proteins are broken down into amino acids and absorbed through the villi as well. Nonpolar nutrients, while including lipids, are a broad category that may not specifically refer to lipids being absorbed by lacteals.

Correct Answer: C

Rationale: The correct answer is C: Parietal lobe. The parietal lobe is responsible for processing sensory information, perception of stimuli, and spatial reasoning. It integrates information from different senses to create a coherent understanding of the world around us. The frontal lobe (A) is mainly involved in executive functions and motor control. The occipital lobe (B) is primarily responsible for processing visual information. The temporal lobe (D) is associated with auditory perception, memory, and language processing. Therefore, the parietal lobe is the most suitable choice for sensation, perception, and spatial reasoning.

Correct Answer: D

Rationale: The correct answer is D because anatomical terms use specific directions to describe relationships between body parts. In this case, "lateral" refers to the side of the body, so the thumb being on the lateral aspect of the hand is accurate. The other choices are incorrect because they do not follow anatomical terminology standards. Choice A incorrectly compares the shoulder joint to the neck using proximity, not specific directional terms. Choice B uses "superior" incorrectly to describe the elbow joint in relation to the shoulder. Choice C inaccurately compares the thoracic and cervical vertebrae using the term "superior," which is not anatomically correct in this context.

Correct Answer: D

Rationale: The correct answer is D: Pyruvic acid. In glycolysis, glucose is broken down into pyruvic acid. This process generates ATP and NADH as well. Lactic acid (A) is produced in anaerobic conditions, not at the end of glycolysis. ATP (B) is produced during glycolysis but is not the end product. NADPH (C) is not the end product of glycolysis, it is produced in the pentose phosphate pathway.