TEAS Test 7 science quizlet

TEAS Test 7 science quizlet Related

Review TEAS Test 7 science quizlet related questions and content

How can the periodic table be used to predict the charge of an ion formed by an element?

  • A. Look for elements with similar atomic weights.
  • B. Identify the group number, which corresponds to the typical ionic charge.
  • C. Calculate the difference between protons and electrons.
  • D. Analyze the element's position within the period.
Correct Answer: B

Rationale: The group number of an element on the periodic table corresponds to the number of valence electrons it has. Elements in the same group tend to form ions with the same charge. For example, elements in Group 1 typically form ions with a +1 charge, while elements in Group 17 typically form ions with a -1 charge. Therefore, by identifying the group number of an element, one can predict the typical ionic charge it will form. Choices A, C, and D are incorrect because predicting the charge of an ion is mainly based on the element's position in the periodic table, particularly the group number, which indicates the number of valence electrons and the typical ionic charge it may form.

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What is the term for the tiny particles that make up atoms?

  • A. Protons
  • B. Electrons
  • C. Neutrons
  • D. Subatomic particles
Correct Answer: D

Rationale: The correct answer is 'Subatomic particles.' Subatomic particles are the tiny components that constitute atoms, including protons, neutrons, and electrons. Protons and neutrons are located in the nucleus of an atom, while electrons revolve around the nucleus. Choices A, B, and C specifically refer to individual subatomic particles but do not encompass the complete range of particles within an atom.

What is the tough, fibrous connective tissue that attaches muscle to bone?

  • A. Fascia
  • B. Perimysium
  • C. Tendon
  • D. Ligament
Correct Answer: C

Rationale: Tendons are the correct answer as they are the tough, fibrous connective tissues that attach muscle to bone. They play a crucial role in transmitting the forces generated by muscle contraction to the bones, facilitating movement. Fascia surrounds muscles and provides support, perimysium is the connective tissue sheath around muscle fibers, and ligaments connect bone to bone, stabilizing joints, which makes them distinct from tendons.

Tendonitis is an inflammation of which part of the body?

  • A. Muscles
  • B. Tendons
  • C. Ligaments
  • D. Cartilage
Correct Answer: B

Rationale: Tendonitis specifically refers to the inflammation of tendons, which are the thick cords that connect muscles to bones. The correct answer is tendons. Choice A, muscles, are not affected in tendonitis, but rather in myositis, which is the inflammation of muscles. Ligaments (Choice C) connect bones to other bones, while cartilage (Choice D) is a smooth and flexible tissue that covers the ends of bones at a joint. Therefore, the correct term for inflammation of tendons is tendonitis.

Which element is a critical component of DNA and RNA, essential for storing and transmitting genetic information?

  • A. Oxygen
  • B. Carbon
  • C. Nitrogen
  • D. Hydrogen
Correct Answer: B

Rationale: Carbon is the correct answer as it is a critical element in DNA and RNA, forming the backbone of these molecules. Its ability to form diverse bonds allows for efficient storage and transmission of genetic information. Oxygen, nitrogen, and hydrogen are also present in DNA and RNA but do not serve as the primary backbone element for these molecules. Oxygen is involved in the structure but not as the backbone element. Nitrogen is present in the bases of nucleotides, and hydrogen bonds help stabilize the structure.

Which type of muscle is characterized by involuntary contractions, is striated, and is primarily found in the heart?

  • A. Skeletal muscle
  • B. Smooth muscle
  • C. Cardiac muscle
  • D. Elastic muscle
Correct Answer: C

Rationale: The correct answer is C, Cardiac muscle. Cardiac muscle fits the description provided in the question as it exhibits involuntary contractions, striations, and is predominantly located in the heart. Skeletal muscle, while also striated, is voluntary and not involuntary like cardiac muscle. Smooth muscle lacks striations and is typically found in the walls of internal organs. Elastic muscle is not a recognized type of muscle tissue in human anatomy, making it an incorrect choice.

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