BSCI124 Straney Test 1 Sample Questions 5 The meristem is the part of the plant where a cell division takes place b water is moved through the root c leaf hairs are formed d DNA is found e sugar is moved from roots to the leaves 6 A system of tubes in the plant constructed from cells in such a way as to allow sugar to move in the plant is the a palisade parenchyma b xylem c phloem d cortex e epidermis 7 Most photosynthesis in the plant takes place in cells closely stacked together called the a epidermis b meristem c xylem d phloem e palisade parenchyma 8 Stomata in the leaf open to allow which of the following into the leaf a water b sugars c carbon dioxide for photosynthesis d light e oxygen needed for photosynthesis 9 Cortex cells in stem and roots function to a DNA b store substances such as starch c absorb water from the soil d move sugars e move water 10 Starch glycogen and cellulose are a polysaccharides made from glucose b monosaccharides made from glucose c proteins d lipids e DNA 11 Information is stored in the cell as a a sequence of amino acids in proteins b a sequence of amino acids in DNA c lipids d a sequence of nucleotide bases in DNA e a sequence of amino acids in RNA 12 Ribosomes allow the translation of information in which of the following processes a lipid protein b RNA protein c RNA DNA d DNA RNA e protein DNA 13 The purpose of sexual reproduction is to a produce offspring that are exactly the same b produce offspring that are different from each other and the parents c produce offspring faster than asexual reproduction d produce new cells for growth e duplicate nuclei 14 In respiration the third step called electron transport has the purpose of a converting energy stored as ATP into NADH using CO2 b releasing CO2 c splitting glucose into ethanol in the absence of oxygen d converting energy stored as NADH into ATP using oxygen 15 The dark reaction of photosynthesis a is totally unknown and so is named the dark reaction b splits glucose into CO2 and stores energy as ATP and NADH c uses energy stored in ATP and NADPH to produce sugar from CO2 d directly uses light falling upon the leaves energy to make sugar in one step e uses chlorophyll to absorb light energy and stores energy as ATP and NADPH 16 A certain plant has a total number of 30 chromosomes in each leaf cell The number of chromosomes in each gamete pollen grain or ovule is a 5 b 10 c 15 d 20 e 40 20 Twenty different amino acids can be linked together in an almost infinite variety of combination to form a long chain called a a nucleic acid b carbohydrate c lipid d DNA e protein 21 You would think that a plant can survive in a sealed jar in light while an animal can not because a Photosynthesis and respiration require oxygen b plants do not respire they only perform photosynthesis c plant only perform glycolysis and so do not need oxygen d photosynthesis produces oxygen and uses carbon dioxide while respiration uses oxygen and releases carbon dioxide e plants require no source of energy to survive 43 A system of tubes in the plant constructed from dead cells in such a way as to allow water to move in the plant is called the 44 The organelle in which photosynthesis takes place within plant cells is called the 45 A change in the DNA sequence in a cell s DNA is called a GENETICS WORKSHEET I MONOHYBRID CROSSES and INCOMPLETE DOMINANCE 1 Most individuals of a certain wild flower have white petals but a few are blue Crosses have shown that the blue color is due to a recessive allele Use W for white and w for blue a What is the genotype of a blue flowered plant and what gametes would it produce as a result of meiosis b What is are the genotype s of each of a blue flowered plant s parents c If a blue flowered plant has two white flowered parents and the parents produced many offspring what fraction of them would you expect to be blue d If a blue flowered plant is crossed with its white flowered parent what fraction of their offspring would have the genotype ww e If two blue flowered plants cross what fraction of their offspring will be blue White 2 Four o clocks exhibit incomplete dominance Thus if a plant with red flowers is crossed with a plant with white flowers the offspring will all produce pink flowers What offspring would you expect if you crossed a red flowered plant with a pink flowered plant II DIHYBRID CROSSES 3 In Jimsonweed purple flower color P is dominant over white p and spiny pods S over smooth pods s These pairs of alleles are not linked A Jimsonweed of genotype PPss is crossed with one of ppss What is the genotype of the F1 generation The phenotype Answers TO sample test 1 5 A 6 C 7 E 8 C 9 B 10 A 11 D 12 B 13 B 14 D 16 C 20 E 21 D 43 XYLEM 44 CHLOROPLAST 45 MUTATION KEY TO GENETICS WORKSHEET 1 a ww only one type w b each is either Ww or ww c 1 4 d e 100 0 2 red pink 3 Ppss all are purple flowers smooth pods 15 C
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