Friday, January 29, 2010

CANCER: Uncontrolled cell division


Click here to access various video clips about cancer from the National Institute of Health.

Thursday, January 28, 2010

MITOSIS: CELLS ALIVE

Click here for a great animation on mitosis. Scroll down to read about what happens during each stage in mitosis. Recall: iPMATc.

Wednesday, January 27, 2010

MITOSIS

Click here for a narrated animation on mitosis.
You can take a quiz (3 questions) after watching the animation. How did you do?

Saturday, January 23, 2010

MIDTERM REVIEW 4: GLUCOSE SONG

Sing along, :-)

MIDTERM REVIEW 3: ENDOCRINE SYSTEM, INSULIN



Click here to see an animation on how insulin works.

How does insulin maintain constant levels of glucose in blood?

Wednesday, January 20, 2010

MIDTERM REVIEW 2: ENDOCRINE SYSTEM.

How does insulin maintain constant blood glucose levels?
What is the difference between type 1 and type 2 diabetes?
In the cells, what organelle will use glucose as fuel to produce energy?

Friday, January 15, 2010

MIDTERM REVIEW 1: HOW DO CELLS OBTAIN ENERGY?

This video clip illustrates the mechanisms of photosynthesis and cellular respiration. It introduces ATP, the universal energy carrier molecules that supply energy-hungry reactions. It also shows the structure and function of Chloroplasts and Mitochondria, energy transforming organelles.

After watching the video clip, you can answer the following questions for a great review on cellular respiration and photosynthesis:
1. List at least four life activities that require energy.
2. What type of energy do cells use?
3. How does ATP provide the energy needed for chemical reactions?
4. Where is the energy stored in the ATP molecule?
5. Where is ATP produced?
6. What molecules diffuse into the mitochondria?
7. Write down the chemical equation for cellular respiration.
8. How many ATP molecules can a cell produce under anaerobic conditions? And, under aerobic conditions?
9. What type of organic molecule is ATP synthase?
10. What molecules diffuse out of the mitochondria?
11. Write down the chemical equation for photosynthesis.
12. Why are plants autotrophs?
13. What colors of light does chlorophyll absorb?
14. What colors of light does chlorophyll reflect?
15. Where do the light reactions for photosynthesis occur?
16. Why are photosynthesis and cellular respiration considered to be coupled reactions?

Monday, January 11, 2010

Thursday, January 7, 2010

ALLERGIES


Click here for a video clip on allergies.

1. How are histamines produced?
2. What do histamines provoke in the human body?

HOW DO VACCINES WORK?

Click here to watch a video clip on how vaccines work.

1. What is a vaccine?
2. How does a vaccine work?

IMMUNE RESPONSE

Click here to watch a video clip on the immune response.

1. Where do B cells (B lymphocytes) develop?
2. Where do T cells (T lymphocytes) develop?
3. How do B cells work?
4. How do T cells work?

Tuesday, January 5, 2010

EARTHWORM DISSECTION

Are you curious about the earthworm dissection lab? get the heads-up on tomorrow's lab. Click here for a virtual earthworm dissection. Check the virtual lab manual for instructions. Enjoy it!