which term describes the ability of a substance to conduct electricity
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ATI TEAS 7

TEAS 7 science quizlet

1. Which term describes the ability of a substance to conduct electricity?

Correct answer: C

Rationale: Conductivity is the correct term used to describe the ability of a substance to conduct electricity. Reactivity is the measure of a substance's tendency to undergo chemical reactions. Density refers to the mass per unit volume of a substance, while viscosity is a measure of a fluid's resistance to flow. In the context of conducting electricity, conductivity is the most appropriate term as it directly relates to the substance's electrical conductive properties.

2. Which layer of the skin is responsible for new skin cell production?

Correct answer: B

Rationale: The correct answer is B, Stratum basale. The stratum basale, also known as the basal layer or stratum germinativum, is the deepest layer of the epidermis and is responsible for new skin cell production through cell division. It contains basal cells that continuously divide to produce new keratinocytes, which move up through the layers of the epidermis. Choice A, Stratum corneum, is the outermost layer of the epidermis consisting of dead cells filled with keratin. It serves a protective function but is not involved in new skin cell production. Choice C, Stratum granulosum, is a layer of the epidermis where keratinocytes undergo changes in their structure and composition. It is involved in the process of keratinization but not in new skin cell production. Choice D, Stratum spinosum, is a layer of the epidermis where cells become interconnected by desmosomes. While it plays a role in providing strength and support to the epidermis, it is not primarily responsible for new skin cell production.

3. Which muscular tube carries urine from the kidneys to the bladder?

Correct answer: B

Rationale: The correct answer is B: Ureter. The ureter is the muscular tube that carries urine from the kidneys to the bladder. The nephron is the functional unit of the kidney responsible for filtering blood and producing urine. The urethra is the tube that carries urine from the bladder out of the body. The glomerulus is a network of capillaries in the nephron where filtration of blood occurs.

4. Which of the following are functions of the liver?

Correct answer: D

Rationale: The liver performs various essential functions in the body. It supports waste disposal by breaking down toxins and producing bile to eliminate waste, aids in blood clotting through the synthesis of plasma proteins like fibrinogen, and emulsifies fats by producing bile that helps in fat digestion. All the statements accurately describe functions of the liver, making option D 'All of the above' the correct choice. Option A is incorrect as it oversimplifies the waste disposal function without mentioning the breakdown of toxins. Option B is incorrect as it only focuses on blood clotting and not the other functions of the liver. Option C is incorrect as it solely emphasizes fat emulsification and does not cover the liver's other crucial roles.

5. Where does visual processing begin in the eye?

Correct answer: C

Rationale: Visual processing begins in the retina, not the cornea, optic nerve, or eyelid. The retina is a layer of tissue at the back of the eye that contains photoreceptor cells responsible for converting light into neural signals that are then sent to the brain for processing. The cornea is the transparent outer layer of the eye that helps focus light, but it does not process visual information. The optic nerve transmits visual information from the retina to the brain, it does not initiate visual processing. The eyelid is a protective covering for the eye and is not involved in visual processing.

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