IN List 3 eukaryotic cell organelles. What are their purposes? (see page 219) What are some things your body needs to balance? (homeostasis) What happens if your body didn’t balance one of those things?

Through ED diagram Membrane notes OUT C-note

Experimental Design Diagram It is important to set up your experiment before jumping into something and not being organized. Look at the sample diagram and discuss Receive a sample experiment and complete the Experimental Design Diagram Attach the experiment and the sample EDD in you notebook

Notes Cornell note the following definitions: – Independent Variable – Dependant Variable – Control Group – Constant

Title Question Hypothesis IV Control1 scoop2 scoop3 scoop 3333 DV Constants Hot solutions Experiment How much does calcium Chloride change the temperature of water? If we add Calcium Chloride to water, then the temperature will change more as we add more CaCl. Amount of calcium chloride Average change in temperature Amount of water, time, initial temperature of water

Practice Compost and Bean Plants After studying about recycling, members of John’s biology class investigated the effect of various recycled products on plant growth. John’s lab group compared the effect of different aged grass compost on bean plants. Because decomposition is necessary for release of nutrients, the group hypothesized that older grass compost would produce taller bean plants. Three flats of bean plants (25 plants/flat) were grown for 5 days. The plants were then fertilized as follows: a 450 g of 3 month compost, b 450 g of 6 month compost and c 0 g of compost. The plants received the same amount of sunlight and water each day. At the end of 30 days the group recorded the height of the plants (cm).

Title Question Hypothesis IV Control3 month6 month 25 DV Constants Beans and Compost Which age of compost will cause the beans to grow the tallest? If we add different aged grass compost to bean plants, then the beans with the oldest compost will grow the tallest Aged compost Height of beans Amount of water, time, amount of light

Vocab Notes Quantitative -observations that involve measurements with standard scales *mass in grams Qualitative-observations that involve verbal descriptions and can be measured with nonverbal scales *color, warm, cold, small, big

Notes from “Membranes” Impermeable-must prevent most substances from being able to pass in or out of the compartment Permeable-allows substances to pass (water) Selectively -ability to regulate Permeablesubstances to pass

SP Cont.-cell membranes only let some things pass SP Cont.To be affective, prevents molecules from moving freely in or out

Lipids-fat molecules Lipid bilayer-cell membrane fat molecules arranged in 2 layers prevents water soluble molecules from passing Protein molecules-receptor proteins, allows specific molecules to move in or out of a cell

cytoskeletal proteins adhesion protein lipid bilayer recognition protein receptor protein cytoplasm active transporter (calcium pump) active transporter (ATPase pump) passive transporter