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Nursing Elites

ATI TEAS 7

Chemistry

1. What is the functional group present in ethers?

Correct answer: C

Rationale: Ethers have the functional group -O-, representing an oxygen atom bonded to two alkyl or aryl groups. The other choices are associated with different functional groups.

2. What is the shape of the DNA molecule?

Correct answer: C

Rationale: Rationale: The shape of the DNA molecule is a double helix. This structure was first described by James Watson and Francis Crick in 1953. The double helix shape consists of two strands that are twisted around each other in a spiral. This shape allows DNA to be compactly stored within the cell nucleus and provides stability to the molecule. The other options (A) Linear, (B) Circular, and (D) Straight chain do not accurately describe the shape of the DNA molecule.

3. What mineral is essential for muscle function and nerve transmission?

Correct answer: A

Rationale: The correct answer is A: Calcium. Calcium is essential for muscle function and nerve transmission. Muscles require calcium to contract properly, and nerve cells use calcium ions to transmit signals throughout the body. Without an adequate amount of calcium, muscle cramps and nerve dysfunction can occur. Iron is important for oxygen transport in the blood, sodium and potassium are electrolytes important for fluid balance and nerve function, but they are not primarily responsible for muscle function and nerve transmission like calcium.

4. Identify the reflexive pronoun in the sentence: "She prepared herself for the presentation."

Correct answer: A

Rationale: "Herself" refers back to the subject "she," making it a reflexive pronoun.

5. Which kingdom primarily consists of multicellular, photosynthetic organisms with cell walls made of cellulose?

Correct answer: C

Rationale: Rationale: A) Animalia consists of multicellular organisms that lack cell walls and are heterotrophic. B) Fungi are multicellular organisms with cell walls made of chitin and are heterotrophic. C) Plantae primarily consists of multicellular, photosynthetic organisms with cell walls made of cellulose. This description fits plants. D) Protista is a diverse kingdom that includes unicellular and multicellular organisms with varying characteristics, but it does not primarily consist of multicellular, photosynthetic organisms with cell walls made of cellulose.

6. Identify the compound-complex sentence in the following options:

Correct answer: D

Rationale: A compound-complex sentence contains at least two independent clauses and at least one dependent clause.

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