what type of particle carries no charge and mediates the strong nuclear force between protons and neutrons
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ATI TEAS 7

Mometrix TEAS 7 science practice test

1. What type of particle carries no charge and mediates the strong nuclear force between protons and neutrons?

Correct answer: C

Rationale: The correct answer is C: Gluon. Gluons are the particles responsible for mediating the strong nuclear force between protons and neutrons. They are the carriers of this force. Choice A, Electron, is incorrect as electrons are negatively charged. Choice B, Photon, is incorrect as photons are chargeless particles of light. Choice D, Neutrino, is incorrect as neutrinos are neutral particles with minimal mass and weak interactions with matter, not involved in mediating the strong nuclear force between protons and neutrons.

2. What does cytokinesis refer to?

Correct answer: B

Rationale: Cytokinesis refers to the division of the cytoplasm of a parental cell between two daughter cells during cell division. It ensures that each daughter cell receives its share of organelles and cytoplasmic components necessary for cellular functions. Choice A, division of the nucleus, is incorrect as this process is known as mitosis. Choice C, separation of chromosomes, is incorrect as it refers to the process of chromatid separation during mitosis. Choice D, formation of spindle fibers, is incorrect as spindle fibers are involved in mitosis to separate chromosomes, not in cytokinesis.

3. What is the muscular tube that connects the outer surface to the cervix in a woman's birth canal referred to as?

Correct answer: C

Rationale: The correct answer is C, 'The vagina.' The muscular tube that connects the outer surface to the cervix in a woman's birth canal is called the vagina. The vagina serves as the passageway for menstrual flow, sexual intercourse, and childbirth. The cervix, not the uterus, connects the vagina to the uterus. The ovaries, on the other hand, are the organs responsible for producing eggs and female hormones, but they are not the muscular tube connecting the outer surface to the cervix in the birth canal.

4. How can you differentiate between a bacterial and viral infection based solely on symptoms?

Correct answer: A

Rationale: It is impossible to differentiate between a bacterial and viral infection based solely on symptoms because many symptoms overlap between the two types of infections. Symptoms like fever, cough, and others can be present in both bacterial and viral infections. Additional diagnostic tests such as cultures or blood tests are often needed to determine the cause of the infection accurately. Relying only on symptoms can lead to misdiagnosis and inappropriate treatment. Choices B, C, and D are incorrect because they oversimplify the differentiation process and do not encompass the complexity of symptoms associated with bacterial and viral infections. While it is true that bacterial infections may respond to antibiotics and some differences in symptoms may be observed between bacterial and viral infections, these are not definitive indicators without proper diagnostic tests.

5. A person who carries a pathogen but does not exhibit any symptoms is considered:

Correct answer: A

Rationale: An asymptomatic carrier is a person who carries a pathogen, such as a virus or bacterium, without showing any symptoms of the infection. Despite lacking symptoms, asymptomatic carriers can still transmit the pathogen to others, potentially causing illness in those they contact. This term specifically pertains to infected individuals who do not manifest symptoms, distinguishing them from symptomatic carriers who do exhibit signs of the infection. Option A is the most fitting choice as it accurately characterizes a person carrying a pathogen without displaying symptoms. B) Opportunistic pathogen: This term describes pathogens that typically do not cause disease in healthy individuals but can be pathogenic in those with weakened immune systems. C) Nosocomial infection: This term refers to infections acquired in a hospital or healthcare facility. D) Vector-borne disease: This term relates to diseases transmitted to humans by vectors like mosquitoes or ticks.

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