ATI TEAS 7
ATI TEAS Science Questions Questions
Question 1 of 5
Which cellular organelle is used for digestion to recycle materials?
Correct Answer: B
Rationale: The lysosome is the correct cellular organelle used for digestion to recycle materials. Lysosomes contain enzymes that break down waste materials, cellular debris, and ingested substances. This process helps in recycling nutrients and maintaining cellular homeostasis. The Golgi apparatus is involved in processing and packaging proteins, the centrioles play a role in cell division, and the mitochondria are responsible for energy production. However, none of these organelles are primarily used for digestion and recycling of materials within the cell.
Question 2 of 5
Find the lowest coefficients that will balance the following combustion equation: __C H + __O2 → __CO2 + __H2O
Correct Answer: C
Rationale:
To balance the combustion equation CxHy + O2 → xCO2 + y/2 H2O, we need to balance the carbon and hydrogen atoms. The balanced equation for the given combustion is: 2C H4 + 9O2 → 2CO2 + 4H2O. This means that the correct coefficients are 2:9:10:4, which corresponds to choice C.
Choice A (1:5:5:2) does not balance the equation correctly, choice B (4:10:20:8) has excessive oxygen and does not balance the equation, and choice D (2:5:10:4) does not provide the correct ratio of oxygen to balance the equation.
Question 3 of 5
Which part of the brain controls the pituitary gland and regulates hunger, thirst, and body temperature?
Correct Answer: B
Rationale: The correct answer is B - Hypothalamus. The hypothalamus plays a crucial role in controlling the pituitary gland and regulating essential functions such as hunger, thirst, and body temperature. It acts as a vital link between the nervous system and the endocrine system, contributing to the maintenance of homeostasis in the body.
Choice A, the Thalamus, is incorrect as it is primarily involved in relaying sensory information to the cerebral cortex.
Choice C, the Medulla oblongata, is not responsible for regulating hunger, thirst, and body temperature; instead, it controls autonomic functions like breathing and heart rate.
Choice D, the Cerebellum, is primarily associated with coordination and balance, not the regulation of endocrine functions or basic physiological needs.
Question 4 of 5
Which of the following compounds often contains a carboxyl group?
Correct Answer: C
Rationale: The correct answer is C: Amino Acids. Amino acids, the building blocks of proteins, contain both an amine group and a carboxyl group. The carboxyl group (-COOH) is crucial for the structure and function of proteins as it participates in peptide bond formation. Carbohydrates and DNA do not typically contain carboxyl groups as a functional group. Glycolipids consist of a carbohydrate chain linked to a lipid, but they do not inherently contain a carboxyl group.
Question 5 of 5
Where does sperm production occur?
Correct Answer: D
Rationale: Sperm production occurs in the seminiferous tubules within the testes. These tubules are responsible for spermatogenesis, the process of sperm creation. The prostate gland and seminal vesicles contribute to seminal fluid production, while the scrotum houses the testes but does not produce sperm.
Therefore, choices A, B, and C are incorrect as they are not sites for sperm production.