Straighterline BIO201L Lab 2 Cell Structure and Function Worksheet

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Pre-Lab Questions:

1.            Identify the major similarities and differences between prokaryotic and eukaryotic cells.

 2.           Where is the DNA housed in a prokaryotic cell? Where is it housed in a eukaryoticcell?

3. Name three structures which provide support and protection in a eukaryotic cell.

Experiment 1: Cell Structure and Function

Post-Lab Questions

1. Labeleachofthearrowsinthefollowingslideimages:

A-

B-

 Onion root tip, 1000x.

1. Whatisthedifferencebetweentheroughandsmoothendoplasmicreticulum?

3.            Would an animal cell be able to survive without a mitochondria? Why or whynot?

4.            What is the function of alysosome?

Experiment 2: Exploring Cell Size

Record the cell radius and time to center of the cell in Table 2. Then, calculate the surface area, volume, and surface area:volume ratio (equations provided below).

Table 2: Surface Area and Volume in Relation to Cell Size

Post-Lab Questions

1.            Createagraphofthetimetothecenterofthecellasafunctionofthesurfacearea:volume ratio.

 2.           Howdidthesurfaceareaaffectthediffusionofthespheresorblocksrepresentingasimple cell? What about the volume? What about the surface area to volume ratio? Which of these had the greatest effect on the diffusion of the spheres orblocks?

3.            How does this experiment demonstrate the need for larger cells to divide?