Add-on optional assignment:

Class,

Share with me ay words of wisdom you have learned in your time.  You can write them on the assignment you turn into me.  I will take the stuff you share and post it on my blog.

Here's two of my favorites:
Best piece of advice I ever got:  never lose your sense of humor
Favorite saying:  A ship is safest at bay, but that is not what ships are made for.

Last assignment!!!!!

Choose one of the following questions and turn in your thoughtful, original answer by your last day.

This will count as your final, which is awesome because its easy!

Question 1:  If earth's axis spun perfectly up and down, how would life be different?  (explain 5 biological examples)

Question 2:  If there were no moon, how would life on our planet been different? (explain 5 biological examples)

Question 3:  If life were discovered on another planet in another solar system, most of what we've learned would be useless. What ideas would still apply? (Explain three biological examples)

Once you've done this, congratulations!  You are now done with IB Biology


U 1      :-)

linear magnification site

Here's a helpful review of how to estimate size in a microscope image.

Two down, One to go!!!

The Draws!!!!

Here they are.  Get your pencils out:

1.   Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. (2.2.1)
2.  Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell.(2.3.1) 
3.   Draw and label a diagram to show the structure of membranes. The diagram should show the

phospholipid bilayer, cholesterol, glycoproteins, integral AND peripheral proteins.  (2.4.1) 
4.   Draw and label water molecules to show their polarity and hydrogen bond formation. (3.1.4)

5.   Draw and label a diagram of the carbon cycle to show the processes involved  (5.2.1)
6.    Draw and label a graph showing a sigmoid (S-shaped) population growth curve. (5.3.2)
7. Draw and label a diagram of the digestive system. Include the mouth, esophagus, stomach, small intestine, large intestine, anus, liver, pancreas gall bladder.  (6.1.4)

8.   Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves, and the route of blood through the heart. (6.2.1)
9.  Draw and label a diagram of the ventilation system, including trachea, lungs, bronchi, bronchioles alveoli with details (6.4.4)
10. Draw and label the structure of a motor neuron, include; dendrites, cell body with nucleus, axon, myelin sheath, nodes of Ranvier, motor end plates (6.5.2)
11.  Draw and label diagrams of the adult male reproductive systems (6.6.1)

12.  Draw and label diagrams of the female reproductive systems (6.6.1)

13.  Draw and label the structure of a peptide bond between two amino acids. (7.4.5)

14.  Draw and label the structure of a mitochondrion as seen in electron micrographs (8.1.3)
15.  Draw and label the structure of a chloroplast as seen in electron micrographs (8.2.1)

16.  Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant (9.1.1)
17.  Draw and label the structure of a dicotyledonous animal-pollinated flower. Limit the diagram to sepal, petal, anther, filament, stigma, style, ovary (9.3.1) 
18.   Draw and label the external and internal structure of a named dicotyledonous seed  (9.3.3)
19.   Draw and label a diagram to show the structure of a sarcomere, including Z lines, actin filaments, myosin filaments with heads, the resultant light and dark bands. (11.2.6)
20.  Draw and label the structure of the kidney.  Include the cortex, medulla, pelvis, ureter, renal blood vessels (11.3.2)
21.  Draw and label the structure of a mature sperm and egg. (11.4.6)
22.  Draw and label a reflex arc for a pain withdrawal reflex, including the spinal cord and its spinal nerves, the receptor cell, sensory neuron, relay neuron, motor neuron effector. (E.1.3)

 

Happy Biology weekend!!!

Hello all,

Our goals for this weekend are to learn about the heart (statements 6.2.1 to 6.2.4)
.

Here's a link to the animation I used in class about muscle contraction.  I hope you find it to be a useful review.

Kei$ha says learning IB Biology makes you famous!

how a muscle contracts!

check out this site!

Muscles and kidneys!

Hello gang!

Tonight's assignment should be easier to do than last night's readings.

1.  Watch this video on how a sarcomere contracts.  From this you should know:
a.  what defines a sarcomere
b.  the two main proteins in a sarcomere
c.  What it means if a sarcomere is closed
d.  Which of the proteins is active when the sarcomere is closing.


In addition, there are two remaining ideas from the assessment statements RE kidneys:

1.  How do the levels of protein, glucose, and urea compare in the:
a.  blood plasma
b. glomerulus filtrate
c.  urine

2.  the role of alpha and beta cells in the pancreas RE to insulin and glucagon

Muscles!!

Class,

Please review the basics of how a muscle cell is organized.  This includes Myofibrils, Sarcoplasmic reticullum, nuclei, and the various bands from a sarcolemma.  We will be reviewing it in class, but here's a pretty good site.  Start at paragraph 5 "a closer look at muscle anatomy shows..."

You can then look at the section on sliding filament theory. 

Thanks.

Weekend Biology fun!!

1.  You can finish the take home test, if not done.

2.  Diabetes assignent:  read page 1008 in our textbook.  Pay particular attention to the diagram on page 1008.  After having done this, you should be able to:
a.  tell the difference between type 1 (insulin) and type 2 (lifestyle) diabetes
b.  explain the role of both insulin and glucagon
c.  tell why untreated diabetics have glucose in their urine

I have diabetes, too

Kidneys kidneys and more kidneys!

Cool way to end the week:  Dissection!  Tomorrow we will be looking at the gross anatomy of the kidney.

Homework for tonight:  please do pages 280-281 in your orange book, related to kidney function.

Kidneys!!!

At this point we are done with plants.  In class we reviewed three things abotu plant roots:
1.  How plants absorb h2o (transpiration pull)
2.  How they ACTIVELY bring in ions at the roots
3.  How they work with fungi.

Then we starter kidneys!
Here's the site to watch and ENJOY!!!  Try your hand at the three question quiz, too


Here's another good animation to help you understand.
By the way, the plant quiz deadline has been moved to MONDAY from FRIDAY.

Plants plants plants!

Hello all and good luck with your high stakes testing!

Today in class we reviewed how flowers have evolved to manipulate organisms into pollinating.

We also reviewd Pr ---> Pfr light cycles (see poinsettia question below).

Homework:  General review.
Tomorrow I will give a take home quiz on plants.  It will be on tubes (xylem and phloem) flowers, seeds, and leaves.  The quiz is due on Friday.  Extras can be found by the blue assessment packs in room 232.

Good luck and I'll see you when I see you.