Megane-9

flat =Members= Janell Courtney Rachel Megane

=Characteristics of Woody Stems=


 * 1) Our twig is 6 years old. You can tell because there are 6 bundle scars. Group 2’’s twig is 5 years old.

10 The function of the lenticels is to exchange gasses between air and the inner tissues of the plant.
 * No, because each year each section grows less or more, so it do not grow the same each year.
 * 1) It doesn’t grow the same because each year the twig grows from the tree so it might not get as much supplies as it needs (i.e. water, food etc.)
 * 2) Our twig has 21 leaf scars.
 * 3) There are two leaf scars per node.
 * 4) Our leaf arrangement is opposite.
 * 5) Yes it grows the same amount each growing season.
 * 6) Yes, it has the same number of 7 bundle scars, and the arrangement is the same.
 * 7) Our lenticels are all over our leaf. They are abundant.

=Thumb War= ==

=Monocot and Dicot=


 * CORN SEED**

. Our corn seed was all starch because when we put the iodine on it, it didn’t change colors it stayed all black. Our corn seed has one young leaf. The part of the seed that is the seed coat is the outer shell. What we mean by outer shell is when the corn seed was soaked in iodine, the outside turned red (but not the inside) so the part that turned red is the seed coat. . The corn seed is monocot because it has one seed leaf.




 * BEAN SEED**

. Our bean seed is dicot because it has 2 seed leafs. You can’t open a corn seed like the bean seed because it is a whole different seed (in many ways to). For example it is a corn seed and it’s shaped different, has different parts (monocot has different parts than dicot), and it comes from a totally different plant. The bean and corn seed are different and you are able to do different things with each ( take the seed coat off the bean seed and not the corn seed) seed. . Our seed coat is the stuff we peeled off.




 * SPLIT PEA SEED**

. Our pea seed is dicot because it has to separate lobes to the cotyledon, which stores food.

dicot Stem slide

The difference between monocot and a dicot is: monocot has 1 cotyledon and dicot has 2 cotyledons.

monocot




 * Herbaceous Plants**

The differences between the two are: Herbaceous is any plant that starts in the ground continues to grow above ground and die above ground at the end of the plants growing season. Woody stems have nothing to do with gardening or planting at that. Herbaceous means that the plants are herb like. Examples that are monocots are Cannabis, sativa, and arundo donax. Examples of dicot herbaceous plants are : dwarf raspberry, Pennsylvania buttercup, meadow beauty, and the great water dock.


 * WOODY STEMS**

A woody stem is the stems of plants who have been growing for 2 years or more. Examples of woody stems are: a tree trunk, and a shrub Herbacous is a stems are plant structures that have been modified to serve the same function as leaves and occur in a number of different plant groups including Cactaceae and Euphorbiaceae..

=Characteristics of Live Lab= Flack a- looks like yeast is at the top of the flask just floating Flask b- looks like nothing is happening Flack c- bubbling at the top

Flask A- has risen since yesterday. Looks like the yeast has risen Flask b- has risen since yesterday. Molasses has risen to the top of the flask. Flack c- bubbles are gone. All three ingredients have come together and have risen to the top.




 * 1) ===== The bromothymol blue changed colors when Brandon breathed it in to the test tube because it was an acid so its ph balance was somewhere between 0 and 6.9 =====
 * 2) ===== The production of carbon dioxide indicates that CO2 rises to the top, and it also becomes acidic. =====
 * 3) ===== You can be sure that the yeast because of respiration produced the carbon dioxide. Respiration turn glucose into energy and oxygen to CO2. =====
 * 4) ===== They are reproducing asexually. =====
 * 5) ===== When Molasses and Water mix it produces quicker. =====

=ANIMAL AND PLANT CELLS LAB=









The shape of the cells are rectangles. They are arranged right next to each other.

=Cell Lab=



This is a picture of our three flasks before they over night. In flask a, there is salt solution with a potato. In flask b, there is a potato in tap water. In flask c, there is iodine and tap water. The bag outside of it is filled with starch.



These are the flasks after they have sat last night with the items in them.

DIFFUSION -

Diffusion occurred in beaker c. Diffusion is when something other than water move to a area with high concentration. In beaker c, the iodine, which is hypotonic went from outside the starch filled bag to inside because the starch is hypertonic so the iodine would move to inside because the starch is a higher concentration.

OSMOSIS- Osmosis occurred in beakers a and b. Osmosis is when water moves from a area of low concentration to a area of higher concentration. In beakers a, and b, the water and salt solution , which are hypotonic moved to the potatoes which are areas of higher concentrations.

=Cell Model=

=Protists Lab=

Daphnia



The size of it is 500m

Daphnia are sometimes referred to as "water fleas" They are 150 know species in North America Thy can range from.2 to 5 mm in length

"Daphnia." //Caudata.org//. Web. 02 Nov. 2011. .

Stentor

The size is 750m

Even though they are 2 mm long, they are the biggest known uni-cellular organisms. They can regenerate in small fragments and can grwo into full organisms. They react to outside disturbances by contracting into a ball form.

"Stentor (protozoa)." //Wikipedia, the Free Encyclopedia//. Web. 02 Nov. 2011. .

Paramecium



The size is190m

They are only .05 to .35 millimeters in length They move like caterpillars. Can be found in the “scums

http://en.wikipedia.org/wiki/Paramecium

=Cell Size Lab=



1. Compare and contrast the three cubes after they were sliced in half. All three “cells” had .05 cm of salt solution in it, but the smallest one was half covered because it was smaller compared to the biggest one which only had 1/6th covered with salt solution. The 2x2x2 “cell” only had 1/3 covered with salt solution. It seemed like the smallest one had the most salt solution in it, but it didn’t all of them had the same amount of diffusion.

2. Which "cell" seemed to be most and least efficient at getting outside substances into the cell? Explain. The 1x1x1 “cell” is the most efficient. It had the biggest ratio. The 3x3x3 “cell” was the least efficient because it’s ratio was 2:1. It had the lowest ratio, which means it was the least efficient.

3. Which of your calculations seems to explain what you observed in your cell models? Why do you think so? Surface Area to Volume Ratio. I think it’s Ratio because, the smallest one, that was more efficient with diffusion had the biggest ratio, and the biggest one which was the least efficient had the smallest ratio.

4. Speculate on a relationship between cell size and efficiency. Your statement should resemble a hypothesis. (Remember: Use an If....., then..... statement.) If the cell is smaller then it’ll be more efficient at diffusion than a bigger cell, which wouldn’t be affected as much. The solution would travel though the smaller cell farther than it would though the bigger cell.

Picture showing the "cells" after they soaked in salt solution for ten minutes and were cut in half.

=Catalase activity=

room temp. reaction



cold temp. reaction



warm temp. reaction



1. 2 H2O2 --> 2 H2O + 2

2. It belongs to the protein group because biomolecules are mostly composed of protein.

3. You can re use them because they don’t get changed. You can also reuse it because unless the molecule becomes denatured, you can still use it.

4. In warm we had a greater reaction with live than any other test with liver. In cold it didn’t bubble over like hot did.

5. The process the organism is in will be slowed down, or nothing will happen.



=HOW MANY DROPS OF WATER WILL FIT ON A PENNY?=

For all four of our test we had different out comes.

Regular Tap Water 1st test: 29 drops 2nd test 28 drops 3rd test: 62 drops 4th test 54 drops. Our rage of drops for the regular tap water is 43.

Our observation was that when you put the water in the middle of the middle of the penny after it all filled up, it was more prone to fall.

This is our penny. It has regular tap water and 40 drops of the water on it.

The soapy water also had different results for each test.

These are the test results for the soapy penny First test: 10 drops 2nd test: 14 drops 3rd test: 26 drops 4th test: 28 drops The average number of drops is 19.5



This is the soapy penny. It has 28 drops on it.

We found that the tap water penny held more than the soapy penny. When the soapy water reached the end of the penny, it would run off right away. The tap water formed a bubble around it.

=Light Intensity Activity=




 * 1) The best condition for the maximum ATP is a higher light intensity and a lower wave length.
 * 2) We think 160 for the wave length and 400 for the light intensity would make the most ATP.

= = = = =Chromatography Lab=

Megane and Courtney's Strip Length is 5cm Each individual section is 0.1 and 0.8

Rachel and Janell's Strip Length is 58mm Each individual section is 0.2 for yellow 0.5 for green yellow 0.8 for green

Our RF distance is 0.2 mm. Courtney and Megan’s RF distance was 0.9. When we put our leaf pigment strip into the ethanol it suddenly began to expand up the strip. It went up because the strip is a filter strip so it would filter up. As far as other group’s results to ours, some our big and some are smaller than ours, but they fall around the same category. Megane and Courtney’s strip was 0.9,0.8 and 0.1The Banana Peppers was 0.6, 0.2, 0.09, 0.07 and 0.1, which is a lot different from ours. It all depends on the strip and how much of the leaf pigments you put on the strip to how far it goes.