Biology

1. Biology Review!!!!! During FLEX time answer questions on paper

2. A cell from heart muscle would probably havean unusually high proportion of • lysosomes. • mitochondria. • mRNA. • Golgi bodies.

3. Series of events that cells go through as they divide and grow • Mitosis • Cell cycle • Cytokinesis • Cancer

4. The clear protein of an egg white becomesopaque and firm when cooked because the heat • mutates the DNA. • turns the protein into carbohydrates. • stops protein formation. • changes the protein structure.

5. Which of the following is NOT a phase of mitosis? • Anaphase • Metaphase • Telophase • Interphase

6. If a corn plant has a genotype of Ttyy, what arethe possible genetic combinations that could bepresent in a single grain of pollen from thisplant? • Ty, ty • TY, ty • TY, Ty, ty • Ty, ty, tY, TY

7. What happens to the chromosome number during meiosis? • It doubles. • It stays the same. • It halves. • It becomes diploid.

8. Smooth muscle is found in the • heart. • appendicular skeleton. • walls of blood vessels. • skeletal muscles.

9. A child has colorblindness. Which genotype-phenotype combination is NOT possible in the child's parents? • The father does not carry the allele and does not have colorblindness. • The mother carries one allele but does not have colorblindness. • The father carries one allele but does not have colorblindness. • The father carries one allele and has colorblindness.

10. During replication, which sequence of nucleotides would bond with the DNA sequence TATGA? • TATGA • UAUGA • ATACT • AUAGA

11. Having two identical alleles for a given gene • Phenotype • Hybrids • Genotype • Homozygous

12. Which of the following nucleotide(s) bond(s) with adenine? • thymine only • uracil only • cytosine and guanine • thymine and uracil

13. All of the following are important roles of the skeletal system EXCEPT • protection of internal organs. • facilitation of movement. • storage of mineral reserves. • regulation of body temperature.

14. Chromatids are attached to each other at the • nucleus. • centriole. • centromere. • cell plate.

15. 5' G T A _ _ _ A A 3' 3' C A T G C A T T 5' This segment of DNA has undergone amutation in which three nucleotides have beendeleted. A repair enzyme would replace themwith • CGT. • GCA. • CTG. • GTA.

16. Which cell structures are sometimes found attached to the endoplasmic reticulum? • Ribosomes • Mitochondria • Vacuoles • Nuclei

17. Animals cells have all of the following EXCEPT • mitochondria. • chloroplasts. • a nucleus. • a cell membrane.

18. After a volcanic eruption has covered an areawith lava, which of the following is the mostlikely order of succession in the repopulation ofthe area? • lichens grasses shrubs trees • mosses grasses lichens trees • grasses trees mosses lichens • shrubs grasses trees lichens

19. Which molecule in plant cells first captures theradiant energy from sunlight? • glucose • carbon dioxide • chlorophyll • adenosine triphosphate

20. A farmer's use of the best livestock for breeding is an example of • natural selection. • artificial selection. • fitness. • common descent.

21. Which of the following is NOT an example of a density-dependent limiting factor? • Natural disasters • Predators • Parasites • Competitors

22. Which is NOT an abiotic factor in an ecosystem? • Microorganisms • Light • Temperature • rainfall

23. Two pink-flowering plants are crossed. The offspring flower as follows: 25% red, 25% white, 50% pink. What pattern of inheritance does flower color in these flowers follow? • dominance • multiple alleles • incomplete dominance • recessiveness

24. Which scientist formulated the theory of evolution through natural selection? • Charles Darwin • James Hutton • Charles Lyell • Jean-Baptiste Lamarck

25. Number of individuals per unit area • Limiting factor • Population Density • Carrying capacity • Exponential growth

26. A group of individuals belonging to a single species that lives together in a defined area is termed a(an) • population. • ecosystem. • community. • biome.

27. Which one of the following is NOT an organic molecule found in living organisms? • protein • nucleic acid • carbohydrate • sodium chloride

28. RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA. • Mutation • Double helix • Protein synthesis • Transcription

29. Nucleotides consist of a phosphate group, a nitrogenous base, and a • fatty acid. • starch. • lipid. • 5-carbon sugar.

30. The principal pigment in plants that captures sunlight energy is • chlorophyll. • oxygen. • ADP. • ATP.

31. Each of the following aids in the process of digestion EXCEPT • teeth. • kidney. • stomach. • small intestine.

32. The main function of the digestive system is to • break down large, insoluble molecules into smaller, soluble molecules. • excrete oxygen and carbon dioxide. • synthesize minerals and vitamins needed for a healthy body. • add essential vitamins to blood.

33. Which of the following is NOT a characteristic of animals? • the ability to make their own food • the ability to move • eukaryotic cells • cells that lack cell walls

34. The process of decoding mRNA into a polypeptide chain is known as • transformation. • transpiration. • translation. • transcription.

35. Gap between two neurons • Synapse • Myelin sheath • Cerebrum • Cerebellum