which of the following is not a function of the endocrine system
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ATI TEAS 7

Mometrix TEAS 7 science practice test

1. Which of the following is NOT a function of the endocrine system?

Correct answer: D

Rationale: The endocrine system is responsible for producing hormones that regulate various bodily functions such as growth, metabolism, mood, and more. Facilitating digestion through muscle contractions is primarily the role of the muscular and nervous systems, not the endocrine system. Therefore, option D is the correct answer as it does not align with the functions typically attributed to the endocrine system. Choices A, B, and C are functions that are indeed associated with the endocrine system, making them incorrect answers in the context of this question.

2. What is the term for the number of moles of solute per liter of solution?

Correct answer: A

Rationale: Molarity is the correct term for the number of moles of solute per liter of solution. It is expressed as moles of solute divided by liters of solution. Molality (B) is similar but is moles of solute per kilogram of solvent. Normality (C) is the number of equivalents of solute per liter of solution, and Concentration (D) is a general term for the amount of solute present in a given quantity of solution. Therefore, the correct answer is A, molarity, as it specifically refers to moles of solute per liter of solution.

3. What is the periodic table?

Correct answer: A

Rationale: The periodic table is a tabular arrangement of the chemical elements, organized based on their atomic number, electron configurations, and recurring chemical properties. Elements are placed in rows (periods) and columns (groups) with similar properties. The elements are listed in order of increasing atomic number, which is the number of protons in the nucleus of an atom. This arrangement reveals a periodic repetition of chemical properties, forming the basis of the periodic law. Choice B, which suggests arranging elements based on increasing atomic mass, is incorrect because the periodic table is primarily organized by atomic number, not atomic mass. Choices C and D are also incorrect as the periodic table is not based on reactivity or color of elements, but rather on atomic number and properties.

4. What is the name of the monthly cycle in females that prepares the body for potential pregnancy?

Correct answer: B

Rationale: The correct answer is B, the menstrual cycle. The menstrual cycle is the monthly series of changes that occur in the female reproductive system, preparing the body for potential pregnancy. One of the key events in this cycle is the thickening of the uterine lining in anticipation of receiving a fertilized egg. If fertilization does not occur, this thickened lining is shed during menstruation. Choices A, C, and D are incorrect. The ovulation cycle specifically refers to the release of the egg from the ovary, not the entire monthly reproductive cycle. The implantation cycle is the phase when a fertilized egg attaches to the uterine lining, not the overall monthly cycle. The gestation cycle pertains to the period of development from conception to birth, not the cycle preparing for potential pregnancy.

5. What is the primary function of red blood cells in the cardiovascular system?

Correct answer: A

Rationale: Red blood cells, also known as erythrocytes, play a crucial role in the cardiovascular system by primarily transporting oxygen from the lungs to the body's tissues and organs. This essential function is carried out through the interaction of hemoglobin, a protein within red blood cells, which binds to oxygen in the lungs and releases it in the body's tissues. Choices B, C, and D are incorrect. Red blood cells are not actively involved in fighting infections, regulating blood clotting, or eliminating waste products from the body.

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