10-18-10

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?

10-18-10

Through ED diagram Membrane notes

OUT C-note 220-221

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

Control 1 scoop 2 scoop 3 scoop

3 3 3 3

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

Control 3 month 6 month

25 25 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

Permeable substances 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