ATI TEAS 7 SCIENCE PRACTICE QUESTIONS AND
ANSWERS 100% CORRECT!
, Define "gene" - ANSWER Genes are protein-coding segments of DNA
Define "centromere" - ANSWER The centromere is the area that connects the
chromosome to the spindle fibers during mitosis and meiosis
Define "DNA polymerase" - ANSWER DNA polymerase is an enzyme that replicates
DNA in chromosomes.
Define "transcription factor" - ANSWER Transcription factor is a protein that controls the
rate of transcription.
Which of the following is true for a sodium atom? (A) It has more neutrons than protons,
(B) It has an equal number of neutrons and electrons, (C), It has a valence of 11, or (D)
It has an atomic mass of 34? - ANSWER (A) It has more neutrons than protons. An
atom of sodium has 12 neutrons and 11 protons. An atom of sodium has a valence of 1.
Sodium has an atomic mass of 23.
What is this structure and where does blood flow from it? - ANSWER The blood vessels
represent the pulmonary arteries, which carry blood to the lungs where gas exchange
occurs.
The pulmonary veins deliver blood to the ____. - ANSWER Left ventricle
The vena cava delivers blood to the ____. - ANSWER Right ventricle
The carotid arteries rising from the aorta deliver blood to the ___. - ANSWER Brain
10^4 meters in kilometers is: - ANSWER 10,000 meters or 10 kilometers
10^-1 hectometers in kilometers is: - ANSWER 0.1 kilometer
10^9 micrometers in kilometers is: - ANSWER 1 kilometer
10^6 centimeters in kilometers is: - ANSWER 10 kilometers
Loss of the myelin sheath surrounding neurons results in which of the following? (A)
Neurons lose the ability to metabolize glucose, (B) The neurons die within a short period
ANSWERS 100% CORRECT!
, Define "gene" - ANSWER Genes are protein-coding segments of DNA
Define "centromere" - ANSWER The centromere is the area that connects the
chromosome to the spindle fibers during mitosis and meiosis
Define "DNA polymerase" - ANSWER DNA polymerase is an enzyme that replicates
DNA in chromosomes.
Define "transcription factor" - ANSWER Transcription factor is a protein that controls the
rate of transcription.
Which of the following is true for a sodium atom? (A) It has more neutrons than protons,
(B) It has an equal number of neutrons and electrons, (C), It has a valence of 11, or (D)
It has an atomic mass of 34? - ANSWER (A) It has more neutrons than protons. An
atom of sodium has 12 neutrons and 11 protons. An atom of sodium has a valence of 1.
Sodium has an atomic mass of 23.
What is this structure and where does blood flow from it? - ANSWER The blood vessels
represent the pulmonary arteries, which carry blood to the lungs where gas exchange
occurs.
The pulmonary veins deliver blood to the ____. - ANSWER Left ventricle
The vena cava delivers blood to the ____. - ANSWER Right ventricle
The carotid arteries rising from the aorta deliver blood to the ___. - ANSWER Brain
10^4 meters in kilometers is: - ANSWER 10,000 meters or 10 kilometers
10^-1 hectometers in kilometers is: - ANSWER 0.1 kilometer
10^9 micrometers in kilometers is: - ANSWER 1 kilometer
10^6 centimeters in kilometers is: - ANSWER 10 kilometers
Loss of the myelin sheath surrounding neurons results in which of the following? (A)
Neurons lose the ability to metabolize glucose, (B) The neurons die within a short period
