ATI TEAS 7
Chemistry
1. Which of the following is a characteristic of alkenes?
- A. They have a double bond between carbon atoms.
- B. They are saturated hydrocarbons.
- C. They contain only single bonds.
- D. They are derivatives of ammonia.
Correct answer: A
Rationale: Alkenes have a double bond between carbon atoms, making them unsaturated hydrocarbons. The other choices do not accurately describe alkenes.
2. Which type of RNA carries the genetic code from DNA to ribosomes?
- A. Ribosomal RNA (rRNA)
- B. Transfer RNA (tRNA)
- C. Messenger RNA (mRNA)
- D. Deoxyribonucleic acid (DNA)
Correct answer: C
Rationale: Rationale: - Messenger RNA (mRNA) carries the genetic information from DNA in the cell's nucleus to the ribosomes in the cytoplasm, where protein synthesis occurs. - Ribosomal RNA (rRNA) is a component of the ribosomes where protein synthesis takes place. - Transfer RNA (tRNA) is responsible for bringing amino acids to the ribosomes during protein synthesis. - Deoxyribonucleic acid (DNA) is the genetic material that contains the instructions for building and maintaining an organism. DNA is transcribed into mRNA before being translated into proteins.
3. Which of the following is a characteristic of alkenes?
- A. They have a double bond between carbon atoms.
- B. They are saturated hydrocarbons.
- C. They contain only single bonds.
- D. They are derivatives of ammonia.
Correct answer: A
Rationale: Alkenes have a double bond between carbon atoms, making them unsaturated hydrocarbons. The other choices do not accurately describe alkenes.
4. What are the building blocks of proteins?
- A. Sugars
- B. Fatty acids
- C. Amino acids
- D. Nucleotides
Correct answer: C
Rationale: Rationale: Proteins are macromolecules made up of long chains of amino acids. Amino acids are the building blocks of proteins and are linked together through peptide bonds to form polypeptide chains, which then fold into specific three-dimensional structures to carry out various functions in the body. Sugars (A) are the building blocks of carbohydrates, fatty acids (B) are the building blocks of lipids, and nucleotides (D) are the building blocks of nucleic acids like DNA and RNA.
5. What type of waves require a medium (solid, liquid, or gas) to propagate?
- A. Transverse waves
- B. Longitudinal waves
- C. Electromagnetic waves
- D. Surface waves
Correct answer: B
Rationale: Longitudinal waves require a medium (solid, liquid, or gas) to propagate because the particles in the medium move parallel to the direction of the wave. Transverse waves, on the other hand, do not require a medium and can propagate through a vacuum. Electromagnetic waves also do not require a medium for propagation, as they consist of oscillating electric and magnetic fields. Surface waves are a combination of both longitudinal and transverse waves and also require a medium to propagate.
6. The final sentence suggests that the debate surrounding UBI necessitates
- A. Focusing on the potential cost savings for governments compared to existing welfare programs.
- B. Prioritizing the opinions of economists and financial experts over those of social scientists and philosophers.
- C. Engaging in thoughtful and informed discussions considering both the economic and ethical implications.
- D. Dismissing the concerns of critics and implementing UBI as a rapid solution to poverty and inequality.
Correct answer: C
Rationale: The emphasis on "complex interplay" and "careful consideration" suggests a call for nuanced and multifaceted discussions, aligning with C.
Similar Questions
Access More Features
ATI TEAS Premium Plus
$150/ 90 days
- Actual ATI TEAS 7 Questions
- 3,000 questions with answers
- 90 days access
ATI TEAS Basic
$99/ 30 days
- 3,000 Questions with answers
- 30 days access