Daily TAKS Connection:Cellular Processes BIO(4): The student knows that cells are the basic structures of all living things and have specialized parts that perform specific functions, and that viruses are different from cells and have different properties and functions. The student is expected to: (B) Investigate and identify cellular processes including homeostasis, permeability, energy production, transportation of molecules, disposal of wastes, function of cellular parts, and synthesis of new molecules.
Construct a two tab foldable Materials: Foldable handout Scissors Pen Colored pencils/crayons Instructions: Cut each paper hamburger fold. You should have 4 ½ pieces of paper. Staple all sheets together Cut on dotted line at the top of each page so that you form “tabs” for each page. Foldable Activity
Record the following notes on each respective page Cell Notes Cell Parts • Nucleus- control center of the cell • Mitochondria- powerhouse produces energy; ATP; numerous in muscle cells • Chloroplast- site of photosynthesis contain green pigment called chlorophyll to trap sunlight • Ribosome- site of protein synthesis • Cell wall- only in plant cells; structure • Cell membrane- transport of into/out of cell • Flagella & Cilia- movement of the cell
Record the following notes on each respective page Cell Energy Notes Cell Energy Photosynthesis: CO2 + H2O + Energy C6H12O6 + O2 (Reactants) (Products) Respiration: C6H12O6 + O2 ATP + H20 + CO2 (Reactants) (Products) Depletion of oxygen results in production of lactic acid build-up (sore muscles)
Record the following notes on each respective page Cell Transport Notes Cell Transport Osmosis is the diffusion of water across a semi-permeable membrane called the lipid bilayer or cell membrane • Sit back and watch a movie! • Diffusionhttp://www.coolschool.ca/lor/BI12/unit4/U04L03/diffusion.swf • Osmosis http://www.stolaf.edu/people/giannini/flashanimat/transport/osmosis.swf
Record the following notes on each respective page Homeostasis Notes Homeostasis • If a cell becomes to large to carry out homeostasis, it divides into 2 identical cells (binary fission) • Dynamic Equilibrium is reached when concentrations are equal on both sides of the concentration gradient.
Question 1 Which would most likely cause the liquid in Tube A to rise? a. Starch concentrations being equal on each side of the membrane b. Water and starch volumes being the same c. Water passing from a region of lower starch concentration to one of higher starch concentration d. Solute in the tubes changing from a higher temperature to a lower temperature
Question 2 Why are photosynthesis and cellular respiration often considered opposites? a. Photosynthesis produces twice as many ATP molecules as cellular respiration does. b. Photosynthesis occurs during the day, and cellular respiration occurs at night. c. Water is released during photosynthesis and consumed during cellular respiration. d. Oxygen is produced during photosynthesis and used during cellular respiration.
Question 3 The picture shows a cell model and the solutions associated with it. In this situation the cell model will — a. gain mass c. increase in solute content b. shrink d. start to vibrate