what is the main function of the large intestine
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Nursing Elites

ATI TEAS 7

Practice TEAS Science Test

1. What is the main function of the large intestine?

Correct answer: B

Rationale: The main function of the large intestine is to absorb water and form feces from waste material. Choice A is incorrect because the absorption of proteins primarily occurs in the small intestine. Choice C is incorrect as the production of enzymes for digestion mainly takes place in the pancreas and small intestine. Choice D is incorrect as the storage of fat is not a primary function of the large intestine.

2. What are the components of the female internal genitalia and their functions?

Correct answer: C

Rationale: The correct answer is C. The ovaries are responsible for producing eggs (ova) and hormones (estrogen and progesterone). They are essential for reproduction, including the release of eggs for fertilization and for regulating the menstrual cycle. The fallopian tubes, as mentioned in choice A, transport eggs from the ovaries to the uterus for potential fertilization. The vagina, described in choice B, serves as the birth canal and also connects the uterus to the external environment. The cervix, as stated in choice D, is the lower part of the uterus that connects it to the vagina and also plays a role in protecting the uterus from infections and serving as a passage for menstrual flow.

3. What is the relationship between work and the displacement of an object?

Correct answer: B

Rationale: Work is directly proportional to displacement. In physics, work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Therefore, work is directly proportional to displacement. Choice A is incorrect because work is dependent on both force and displacement. Choice C is incorrect because work is not inversely proportional to displacement; it is directly proportional. Choice D is incorrect because work is indeed related to displacement, as described in the definition of work in physics.

4. Which process allows for the movement of large molecules, such as proteins and polysaccharides, across the cell membrane?

Correct answer: A

Rationale: Endocytosis is the process by which cells engulf large molecules or particles by wrapping the cell membrane around them to form a vesicle that is brought into the cell. This mechanism facilitates the movement of large molecules like proteins and polysaccharides across the cell membrane. Exocytosis involves the release of large molecules or particles from the cell, opposite to the scenario described in the question. Active transport requires energy to move molecules against their concentration gradient and is not primarily used for transporting proteins and polysaccharides. Facilitated diffusion entails the movement of molecules aided by transport proteins but is not the primary mechanism for transporting large molecules such as proteins and polysaccharides.

5. What is the Pauli exclusion principle?

Correct answer: B

Rationale: The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers. This principle leads to the rule that electrons must have opposite spins when occupying the same orbital. Therefore, electrons cannot occupy the same orbital with the same spin, as stated in option B. Option A is incorrect as it refers to the Aufbau principle, which describes the order in which electrons fill orbitals based on increasing energy. Option C is incorrect as it provides the formula for the maximum number of electrons in an orbital based on the energy level, not the Pauli exclusion principle. Option D is incorrect as it describes Coulomb's law, which deals with the electrostatic force between charged particles, not the Pauli exclusion principle.

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