centrioles are structures involved in cell divisio 6844987

ATI TEAS 7

Mometrix TEAS 7 science practice test

1. Centrioles are structures involved in cell division. What is their specific role?

A. Forming the nuclear envelope
B. Replicating DNA
C. Organizing microtubules during cell division
D. Protein synthesis

Correct answer: C

Rationale: Centrioles are involved in organizing microtubules during cell division, specifically in forming the mitotic spindle. The mitotic spindle is crucial for the proper alignment and separation of chromosomes during cell division, ensuring the accurate distribution of genetic material to daughter cells. Choice A, forming the nuclear envelope, is incorrect as centrioles do not have a direct role in this process. Choice B, replicating DNA, is incorrect as centrioles are not involved in DNA replication. Choice D, protein synthesis, is incorrect as centrioles do not play a role in protein synthesis.

2. What is the process of converting simple sugars into complex carbohydrates called?

A. Glycolysis
B. Gluconeogenesis
C. Krebs cycle
D. Oxidative phosphorylation

Correct answer: B

Rationale: Gluconeogenesis is the correct answer. It is the process of synthesizing glucose from non-carbohydrate sources, such as amino acids or glycerol. A) Glycolysis is the process of breaking down glucose into pyruvate to produce energy. C) The Krebs cycle, also known as the citric acid cycle, generates energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins. D) Oxidative phosphorylation is the final stage of cellular respiration where ATP is produced using energy derived from the electron transport chain. Therefore, choices A, C, and D are not the processes involved in converting simple sugars into complex carbohydrates.

3. Which of the following is the most likely setting of the scenario below? Walking along the Thames, Julianna saw a sign advertising a fish and chips shop. Since she felt a bit peckish, she made her way over to the queue.

A. Chicago, United States
B. Vienna, Austria
C. Tokyo, Japan
D. London, England

Correct answer: D

Rationale: The mention of the Thames, fish and chips, and queue strongly indicates a British setting. Fish and chips are a traditional British dish, and the Thames is a famous river in London, England. Additionally, forming a queue is a common practice in England. Therefore, based on these cultural clues, London, England, is the most likely setting of the scenario. Choices A, B, and C are incorrect as they do not align with the specific cultural references mentioned in the scenario.

4. What does the term 'solute' refer to in a solution?

A. The substance present in the largest amount
B. The substance that dissolves in the solvent
C. The liquid portion of the solution
D. The temperature at which the solution freezes

Correct answer: B

Rationale: In a solution, the term 'solute' specifically refers to the substance that dissolves in the solvent to create a solution. The solute is typically present in a smaller amount compared to the solvent. Option B correctly identifies the solute as the substance that undergoes dissolution in the solvent, making it the correct choice. Choices A, C, and D are incorrect. Choice A is actually describing the solvent, which is the substance present in the largest amount in a solution. Choice C refers to the solvent, not the solute. Choice D is unrelated to the term 'solute' as it describes the colligative property of freezing point depression, not the solute itself.

5. Which of the following root words means far?

A. tele
B. trans
C. post
D. ante

Correct answer: A

Rationale: The correct answer is 'tele,' which means far. This root word is commonly found in words like 'telephone' and 'television,' where 'tele' indicates a distance or far-reaching transmission. 'Trans' (choice B) means across or beyond, not specifically far. 'Post' (choice C) means after or later, and 'ante' (choice D) means before or prior, neither of which conveys the meaning of far.