EcologyDNA and Proteins Cell Structure and Function Cellular Energy Variety 100 200 300 400 500
100 All the members of one species that live in the same area are a(n)___. a.population. b.ecosystem. c.community. d.niche.
200 Which of these organisms is a secondary consumer?
300 Why is nitrogen fixation an important part of the nitrogen cycle?
400 In the energy pyramid to the right, which group of organisms contain the greatest amount of energy?
500 During which year did the population grow the fastest?
100 What is produced as a result of transcription? A.Two identical DNA molecules B.RNA molecules C.Amino Acid chains D.Mitosis
200 What is the name of the process depicted in the image below?
300 What is the DNA strand that codes for the following two amino acids? tryptophan-methionine
400 Which figure in the diagram represents an Okasaki fragment?
500 Which enzyme(s) is(are) responsible for attaching nucleotides to nucelic acids? A.DNA polymerase B.DNA helicase C.DNA ligase D.RNA polymerase E.A and B F.C and D G.B and C H.A and D
100 If you observe several cells without nuclei under the microscope, you are probably observing? a.eukaryotic cells. b.prokaryotic cells. c.animal cells. d.plant cells.
200 Water freely moves in and out of the cell membrane. What is the best description of this process? A.Active transport B.Diffusion C.Endocytosis D.Abiotic movement
300 Which macromolecules make up most of the cell membrane?
400 Which structures are shared by all prokaryotic cells, all eukaryotic cells and viruses? a.nucleic acids and proteins b.nucleic acids and cell walls c.nucleus and nucleic acids d.proteins and a nucleus
500 What is the name of the macromolecule that makes up hair, nails, antibodies and enzymes?
100 The reactants in photosynthesis are: a.CO 2 + H 2 O. b.CO 2 + H 2. c.C + O 2. d.C + H 2.
200 In a plant, the pigment in the chloroplast that absorbs light energy is the___. a.ATP b.chlorophyll c.ribolyll d.glucose
300 Which of the following are produced after the breakdown of glucose in the mitochondria? a.ATP + O 2 + H 2 O. b.CO 2 + H 2 O + ATP. c.CO 2 + O 2 + H 2. d.ATP + O 2 + C 6 H 12 O 6.
400 Which of the following molecules contains the most energy? A.AMP B.ADP C.ATP D.Glucose
500 The type of sugar produced by photosynthesis is ___. Glucose Deoxyribose Ribose Sucrose None of the above
100 Rewrite this piece of DNA with a point mutation. Underline where the mutation is located. GAGAGAGA
200 What are three differences between DNA and RNA?
300 Rewrite this piece of DNA with a frameshift mutation. TATATATATA
400 Describe the role of tRNA in the process of translation.
500 Which of the following statements about enzymes is NOT true? a.Enzymes work best at a specified pH b.Temperature has no affect on enzyme activity. c.Enzymes are proteins. d.Enzymes are organic catalysts.