Please look up google image in order to answer the questions: 1. Slide of potato
ID: 72196 • Letter: P
Question
Please look up google image in order to answer the questions:
1. Slide of potato cell stained with iodine
a. What molecule is stained by the iodine?
b. What kind of plastid contains the stained molecules?
2. Slide of cardiac muscle cell
a. What organelle do you see in these cells?
b. Are the cells cylinders or branched?
c. How are they similar to skeletal muscle?
3. electron microscope of DNA
Did you find images that look 3 dimensional?
How are these DNA images different than the light microscope images of DNA?
Explanation / Answer
1. a. Starch molecules are stained by iodine (amyloplasts). Iodine stains the starch molecules in blue black or purple colour.
b). Amloplasts contains the stained molecules because starch is stored in amyloplasts.
2). a). Nucleus. We can see the nucleus in the cardiac muscle cells.
b). Cardiac muscle cells are branched.
c). Both skeletal muscle and cardiac muscle cells have striations.