Answer Key 2012-2013 Summer School Assessment Biology Unit 1

3 Cell growth and the rate of cell division in multicellular organisms vary between different typesof cells. Organism growth and repair occur as cells progress through the different phases ofthe cell cycle. Why is the cell cycle important to the growth of organisms?ABCDThe cell cycle allows for all genetic information to be copied before cell division occurs sothat each daughter cell has everything it needs to survive.The cell cycle allows for new genetic information to be processed so that the daughtercells can be altered to meet new needs of the organism.The cell cycle allows cells to grow to larger sizes to accommodate the increase in size ofthe organism as the organism grows.The cell cycle allows for the organism to make its own food when food sources arescarce.Page 2Biology © Houston ISD – Curriculum 2012 – 2013

4 Organic compounds found in living organisms are called biomolecules. Study the incompletetable below comparing the structures of the four groups of biomolecules found in livingorganisms.Which table below correctly matches the biomolecules with their subunits?Page 3Biology © Houston ISD – Curriculum 2012 – 2013

5 A biological supply company is advertisingthe synthesis of a new compound.Scientists note that when the compound isadded to a particular chemical reaction, thereaction rate increases dramatically. Thecompound is likely a –ABClipidproteinnucleic acid6 Protein molecules are made up of oxygen,hydrogen, carbon, and nitrogen. Themolecules are needed by organisms forgrowth, for repair, and for creatingenzymes. Which of the followingorganelles are involved in the synthesisand packaging of proteins in an animalcell?ABRibosomes, vacuoles, nucleusRough endoplasmic reticulum,mitochondria, lysosomesDcarbohydrateCCell membrane, golgi apparatus,nucleusDGolgi apparatus, rough endoplasmicreticulum, ribosomesBE SURE YOU HAVE RECORDED ALL OF YOURANSWERS ON THE ANSWER DOCUMENTPage 4Biology © Houston ISD – Curriculum 2012 – 2013