What is the relationship between viruses and their host cells during replication?
A. Viruses use the host’s replication processes to produce progeny virus particles.
B. Viruses divide inside the host cell to produce progeny virus particles.
C. Viruses have their own replication processes and do not need the host cell.
D. Viruses infect the host cell and destroy it completely.
Viruses use the host’s replication processes to produce progeny virus particles.
Viruses are obligate intracellular parasites, meaning that they require a host cell to replicate.
They hijack the host cell’s machinery to produce new virus particles.
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Choice B is incorrect because viruses do not divide inside the host cell.
Instead, they use the host cell’s machinery to produce new virus particles.
Choice C is incorrect because viruses do not have their own replication processes and rely on the host cell for replication.
Choice D is incorrect because while some viruses may destroy the host cell during replication, this is not always the case and is not the primary relationship between viruses and their host cells during replication.
Therefore, the Correct Answer is A.
More Questions on TEAS 7 Science
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Q #1: Which hormone is responsible for the development of female secondary sexual characteristics such as breast development, menstrual cycle, and widening of hips?
A. Progesterone
B. Testosterone
C. Estrogen
D. FSH
Answer Explanation
The correct answer is choice C. Estrogen.
Estrogen is a steroid hormone responsible for the development of female secondary sexual characteristics such as breast development, menstrual cycle, and widening of hips.
Choice A, Progesterone, is not the correct answer because it is required to maintain pregnancy and delivery.
Choice B, Testosterone, is not the correct answer because it is a hormone produced by the testes which controls the development of male secondary sexual characteristics.
Choice D, FSH (Follicle Stimulating Hormone), is not the correct answer because it stimulates the growth of ovarian follicles in females and regulates spermatogenesis in males.
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Q #2: Which subatomic particle contributes to the positive charge of an atom?
A. Proton
B. Neutron
C. Electron
D. Nucleon
Answer Explanation
Protons contribute to the positive charge of an atom.
Protons are subatomic particles with a positive charge found in the nucleus of an atom.
Choice B is incorrect because neutrons are neutral and do not have a charge. Choice C is incorrect because electrons have a negative charge.
Choice D is incorrect because nucleons refer to both protons and neutrons, but only protons contribute to the positive charge of an atom.
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Q #3: Which of the following structures in the nephron is responsible for reabsorbing ions, water and nutrients?
A. Distal tubule
B. Proximal tubule
C. Glomerulus
D. Loop of Henle
Answer Explanation
Proximal tubule
The proximal tubule is responsible for reabsorbing all the nutrients and most of the water.
Choice A is incorrect because the distal tubule is not primarily responsible for reabsorbing ions, water and nutrients.
Choice C is incorrect because the glomerulus is responsible for filtering fluid and solutes out of the blood to form a glomerular filtrate.
Choice D is incorrect because the Loop of Henle is not primarily responsible for reabsorbing ions, water and nutrients.
