Wednesday the 13th

Today in 2nd period biology we discussed the Kidney. Some of the notes for today are the following...

The kidney

- Removes metabolic waste and helps to maintain homeostasis (i.e. keeps salt and water levels in balance)

- Three major steps the kidneys preform are...

- Filtering blood

- Reabsorbing nutrients

- Collection and excretion

- The nephron

-Basic unit of the kidney

- Filtration

- water, Urea, glucose, salts, amino acids and vitamins filter into nephron

- Reabsorption

- needed materials reenter the blood stream

- Collection and

- concentrated urine is collected and leaves the kidney

The second half of class we saw a urine demonstration were we tested for glucose.

There is no homework due tomorrow but there is a test friday on digestion and excretion. The homework that was due today was the kidney dissection lab on pages 23-28 in the unit packet.

IZZY IS OUR NEXT SCRIBE

Friday's Class

August, 27th

On class Friday we started off discussing our first scribe post and completed "a star and a wish" on it. We then went over the homework (p.9, 10, and 19-21 in our unit packet). We reviewed what variables, a control group, and a hypothesis are. Mrs. Stein later told us that we would be able to get a homework pass if we stopped by and let her get to know us and vice versa. Later we were introduced to our next lab the "rip-o-meter lab" in which we test how much weight a leaf can hold before it tears, we were told that we should bring leaves in on monday so that we could start the testing. At the end of class we were assigned the homework which was reading section 1.1 and writing six types of questions and answers on the material and to bring in leaves for our lab.

The next scribe will be Gianna.