ATI TEAS 7
ATI TEAS Science Questions Questions
Question 1 of 5
Which type of tissue connects muscles to bones?
Correct Answer: B
Rationale: The correct answer is B: Tendons. Tendons connect muscles to bones, not bones to muscles. They play a crucial role in transmitting the force generated by muscles to move bones, enabling movement. Ligaments (choice
A) connect bones to bones, providing stability to joints. Cartilage (choice
C) is a connective tissue found in joints, providing cushioning and flexibility. Muscles (choice
D) are responsible for generating force through contraction but do not directly connect muscles to bones.
Question 2 of 5
Which two types of elements are most likely to form an ionic bond?
Correct Answer: D
Rationale: Ionic bonds typically form between a metal, which donates electrons from its s orbital, and a nonmetal, which accepts electrons into its p orbital. This transfer of electrons leads to the formation of an ionic bond.
Choice A is incorrect as elements in the same period may vary significantly in their properties.
Choice B is incorrect because ionic bonds are usually formed between a metal and a nonmetal, not two nonmetals.
Choice C is incorrect because transition metals generally form complex ions through the sharing of electrons, not typical ionic bonds.
Question 3 of 5
Which valve prevents the return of blood into the right ventricle?
Correct Answer: A
Rationale: The correct answer is A: Pulmonary semilunar valve. The pulmonary semilunar valve is located between the right ventricle and the pulmonary artery. It opens to allow blood to be pumped into the pulmonary artery but closes to prevent blood from returning back into the right ventricle. The aortic semilunar valve is located between the left ventricle and the aorta. The tricuspid valve is located between the right atrium and right ventricle, and the mitral valve is located between the left atrium and left ventricle.
Therefore, the pulmonary semilunar valve is the specific valve responsible for preventing the backflow of blood into the right ventricle during the cardiac cycle.
Question 4 of 5
Which of the following nucleic acids carries the genetic information copied from DNA to the ribosomes?
Correct Answer: B
Rationale: The correct answer is B: mRNA. Messenger RNA (mRN
A) is responsible for carrying the genetic information copied from DNA to the ribosomes for protein synthesis. mRNA serves as a temporary copy of the genetic instructions stored in DNA and acts as a messenger between the nucleus and ribosomes in the cytoplasm where protein synthesis occurs. While rRNA (ribosomal RN
A) and tRNA (transfer RN
A) play essential roles in the process of translation at the ribosomes, mRNA is the nucleic acid directly involved in carrying the genetic code for protein synthesis.
Therefore, choices A, C, and D are incorrect as DNA is the original genetic material, rRNA is a component of the ribosomes, and tRNA carries amino acids during protein synthesis, respectively.
Question 5 of 5
Which property remains constant despite possible changes to the element?
Correct Answer: A
Rationale: The correct answer is 'Atomic number' (
A). The atomic number of an element remains constant as it defines the number of protons in the nucleus, which does not change despite various chemical reactions or physical processes affecting the element. The number of protons in the nucleus determines the identity of the element, and this fundamental property remains unchanged even if the element undergoes chemical reactions, forms ions, or changes its physical state.
Choices B, C, and D are incorrect because the number of electrons (
B) can change in chemical reactions, atomic mass (
C) can vary with isotopes, and isotopic form (
D) refers to variations in the number of neutrons in the nucleus, which can result in different isotopes of an element.