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Praxis Biology and General Science: Practice and Study Guide Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. The inside compartment of the endoplasmic reticulum which is fully separated from the cytoplasm that surrounds it is called _____.

Question 2 2. An assessment of energy use in a man-made structure used to evaluate energy consumption, identify places of energy loss, and provide information to improve energy efficiency is called a/an _____.

Question 3 3. Natural objects from space that enter Earth's atmosphere, heat up, grow bright, and fall to Earth are called _____.

Question 4 4. _____ are simple sugars in their simplest form which cannot be broken down further.

Question 5 5. A force is a push or pull exerted upon objects that interact with each other directly or at a distance. According to _____, an unbalanced force on an object will change the object's state of motion. The object will accelerate. For example, gravity causes objects to accelerate.

Question 6 6. When solvent molecules move across a semipermeable membrane, the process is known as _____.

Question 7 7. When charged particles move, they create _____.

Question 8 8. Tiny, infectious agents that are metabolically inert and only replicate in organic hosts, and which can infect bacteria, are called _____.

Question 9 9. The _____ is the part of the cerebral cortex that is associated with memory retrieval.

Question 10 10. As an alternative to traditional pesticides, scientists can utilize artificially created pest pheromones to lure pests into traps for removal or extermination. We call this alternative pesticide method _____.

Question 11 11. The _____ explains how we perceive changes in sounds when their sources are moving toward us, past us, or away from us. Even though the pitches of the sounds don't change, we hear them as if they do.

Question 12 12. When two amino acids exist side by side, then one gives away a hydrogen molecule while the other gives up both an oxygen and a hydrogen molecule, the remaining three molecules become H2O. When the water molecule leaves, the amino acids are fused together. This process creates what is called a _____.

Question 13 13. The _____ describes genotypic frequency in a population. For a sexually reproducing diploid organism, for example, when there are only two allelic possibilities for the gene, the equation can be written as p^2 + 2pq + q^2 = 1. P and q represent the allelic frequency of the two possible alleles for the gene in question--p is the dominant allele and q the recessive allele.

Question 14 14. _____ Theory posits that when the Earth was young, it spun so quickly that a piece of it dislodged and flew into space, where it eventually orbited the Earth as our Moon.

Question 15 15. When a military jet flies at the speed of sound, each sound wave has no time to get out of the next sound wave's path, thus they merge; and this creates a shock wave. When we hear this phenomenon, we call it a _____.

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Praxis Biology and General Science: Practice and Study Guide Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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