ATI TEAS 7
ATI TEAS 7 Version 1 Science Questions
Extract:
Question 1 of 5
A group of students performed an experiment to test terminal velocity, which is the greatest speed obtained by a falling object. The students dropped different numbers of coffee filters and measured the resulting terminal velocity. Which of the following conclusions is supported by the data in the following data table?
Correct Answer: D
Rationale: The correct conclusion supported by the data is that heavier objects fall faster than lighter objects. Heavier objects experience a greater gravitational force, causing them to fall faster. This aligns with the concept of terminal velocity, which is the maximum speed a falling object can reach when the force of gravity is balanced by air resistance. Due to the stronger pull of gravity on heavier objects, they can overcome air resistance more effectively and reach terminal velocity faster compared to lighter objects.
Extract:
Question 2 of 5
What is the function of a totipotent cell?
Correct Answer: B
Rationale: Totipotent cells possess the remarkable ability to differentiate into any cell type in the body, encompassing both embryonic and extraembryonic cell varieties. This quality is crucial in the early stages of embryonic development, facilitating the generation of all cell lineages and tissues. Unlike pluripotent or multipotent cells, totipotent cells exhibit the most extensive differentiation potential, playing a vital role in the organism's development from a single fertilized egg cell.
Question 3 of 5
Which of the following cell types produce and release antibodies?
Correct Answer: C
Rationale: Plasma B cells are specialized cells that are responsible for producing and releasing antibodies. These antibodies play a vital role in the immune response by recognizing and neutralizing harmful pathogens like bacteria and viruses. Helper T cells aid in activating B cells and other immune cells, cytotoxic T cells are involved in eliminating infected or abnormal cells, and natural killer cells are part of the innate immune system, targeting virus-infected and tumor cells.
Question 4 of 5
What is the atomic number of an atom that has 12 protons and 12 neutrons?
Correct Answer: C
Rationale: The atomic number of an element is determined by the number of protons in its nucleus. In this case, the atom has 12 protons, which directly corresponds to its atomic number. Neutrons have no impact on the atomic number; they contribute to the atomic mass. The atomic number uniquely identifies an element based on the number of protons in its nucleus. Therefore, the correct answer is 12, as it represents the number of protons in the nucleus and defines the element, regardless of the presence of neutrons.
Extract:
Question 5 of 5
Which of the following structures is correctly associated with its immune function?
Correct Answer: C
Rationale: The spleen is responsible for filtering blood and removing germs, making option C the correct association of structure and immune function.