which macromolecule will always contain nitrogen

ATI TEAS 7

Practice TEAS Science Test

1. Which macromolecule will always contain nitrogen?

A. Fatty acid
B. Protein
C. Lipid
D. Carbohydrate

Correct answer: B

Rationale: The correct answer is B: Protein. Proteins always contain nitrogen, as it is a key element in amino acids, the building blocks of proteins. Fatty acids (choice A), lipids (choice C), and carbohydrates (choice D) do not always contain nitrogen. Fatty acids consist of long chains of hydrocarbons, lipids are mainly composed of carbon, hydrogen, and oxygen, and carbohydrates are composed of carbon, hydrogen, and oxygen as well, but not nitrogen.

2. Which of the following examples would be a good transition sentence?

A. You will have an instructor and a syllabus with a list of the books you will need to read.
B. Taking a course online is in many ways similar to taking a course in a traditional classroom setting.
C. You will even have class discussions and one-on-one meetings with your professor.
D. However, online students often work entirely from home, which is just one part of what makes online learning different.

Correct answer: D

Rationale: The sentence 'However, online students often work entirely from home, which is just one part of what makes online learning different.' provides a contrast and smoothly transitions to a discussion of what makes online learning distinct from traditional classroom settings. Choice A talks about the components of a course but does not transition to a new point. Choice B discusses similarities between online and traditional courses, which does not transition to a new topic. Choice C focuses on interactions with professors but does not transition to a new idea.

3. Which of the following is NOT a prewriting strategy?

A. Brainstorming
B. Visual mapping of ideas
C. Asking questions
D. Organizing writing into paragraphs

Correct answer: D

Rationale: The correct answer is D. Organizing writing into paragraphs is a component of drafting, which occurs after prewriting. Prewriting involves generating ideas, organizing thoughts, and outlining content before beginning the actual writing process. Choices A, B, and C are all prewriting strategies. Brainstorming helps in generating ideas, visual mapping assists in organizing thoughts spatially, and asking questions helps in exploring different angles of the topic before structuring the content. Therefore, organizing writing into paragraphs is the only option that does not directly relate to prewriting.

4. Neurons, the functional units of the nervous system, belong to which tissue type?

A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
D. Nervous tissue

Correct answer: D

Rationale: Neurons are the functional units of the nervous system and are specialized cells that transmit nerve impulses. They belong to nervous tissue, which is the primary tissue type of the nervous system. Nervous tissue is composed of neurons and supporting cells called neuroglia. Choices A, B, and C are incorrect because epithelial tissue functions mainly in covering and lining body surfaces, connective tissue provides support and structure, and muscle tissue is responsible for movement. Neurons, being the basic functional units of the nervous system, are specifically classified under nervous tissue.

5. The patient was experiencing intraocular pressure. Based on the analysis of word parts, what is the meaning of 'intraocular' as used in the sentence above?

A. Within the eyes
B. Between the eyes
C. Above the eyes
D. Below the eyes

Correct answer: A

Rationale: The term 'intraocular' is derived from 'intra-' meaning within and 'ocular' referring to the eyes. Therefore, 'intraocular' means within the eyes. Choice A is correct. Choices B, C, and D are incorrect as they do not accurately reflect the meaning of 'intraocular' based on the analysis of word parts.