Biology Unit 6

Big Idea:

The cell cycle is the series of events that take place in a cell leading to its division and duplication of DNA to produce new cells.

Student Expectations:

Priority TEKS

B.4A compare and contrast prokaryotic and eukaryotic cells , including their complexity, and compare and contrast scientific explanations for cellular complexity

B.4B investigate and explain cellular processes, including homeostasis and transport of molecules

B.5A describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication and mitosis, and the importance of the cell cycle to the growth of organisms

B.5B describe the roles of DNA, ribonucleic acid (RNA), and environmental factors in cell differentiation; and

B.5C recognize that disruptions of the cell cycle lead to diseases such as cancer.

Focus TEKS

B.6C explain the purpose and process of transcription and translation using models of DNA and RNA

B.6G recognize the significance of meiosis to sexual reproduction.

Ongoing TEKS

7.12F Recognize that according to cell theory all organisms are composed of cells and cells carry on similar functions, such as extracting energy from food to sustain life

7.14B Compare the results of uniform or diverse offspring from sexual reproduction or asexual reproduction

7.14C Recognize that inherited traits of individuals are governed in the genetic material found in the genes within chromosomes in the nucleus

B.2B know that hypotheses are tentative and testable statements that must be capable of being supported or not supported by observational evidence. Hypotheses of durable explanatory power that have been tested over a wide variety of conditions are incorporated into theories

B.2C know scientific theories are based on natural and physical phenomena and are capable of being tested by multiple independent researchers. Unlike hypotheses, scientific theories are well established and highly reliable explanations, but they may be subject to change as new areas of science and new technologies are developed

B.2D distinguish between scientific hypotheses and scientific theories

B.2E plan and implement descriptive, comparative, and experimental investigations, including asking questions, formulating testable hypotheses, and selecting equipment and technology

B.2F collect and organize qualitative and quantitative data and make measurements with accuracy and precision using tools such as data-collecting probes, standard laboratory glassware, microscopes, various prepared slides, stereoscopes, metric rulers, balances, gel electrophoresis apparatuses, micropipettes, hand lenses, Celsius thermometers, hot plates, lab notebooks or journals, timing devices, Petri dishes, lab incubators, dissection equipment, meter sticks, and models, diagrams, or samples of biological specimens or structures

B.2G analyze, evaluate, make inferences, and predict trends from data

B.2H communicate valid conclusions supported by the data through methods such as lab reports, labeled drawings, graphic organizers, journals, summaries, oral reports, and technology-based reports

B.3E evaluate models according to their limitations in representing biological objects or events

Student Learning Targets:

• I will describe the stages and events of the cell cycle.
• I will recognize the stages of mitosis through microscopic analysis.
• I will describe factors that affect the regulation of the cell cycle.
• I will recognize that disruptions in the cell cycle can lead to diseases such as cancer.

Essential Questions:

• Why is cell cycle important to the growth of an organism?
• In what ways do specialized cells relate to cell division and cell differentiation?
• What role do DNA and environmental factors play in cell differentiation?
• What are the possible effects of disruptions in the cell cycle?

Extra Information:

Adopted Textbook: Biology, Houghton Mifflin Harcourt, Holt McDougal

District Grading Policy

Texas Gateway Online Resource Center