# Straighterline BIO201L Lab 2 Cell Structure and Function Worksheet

Question # 00631711
Course Code : BIO201L
Subject: Biology
Due on: 01/15/2022
Posted On: 01/14/2022 08:29 PM
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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

 Radius (µm) Surface Area (µm2) Volume (µm3) Surface Area:Volume Ratio Time to Center of the Cell (s) 15 2,827.4 13,783.74 1:4875 0.075 30 11,309.7 110,269.9 1:9.75 0.15 45 25,446.9 372,160.92 1:14.625 0.225 60 45,238.9 882,159.22 1:19.5 0.3 75 70,685.8 1,722,967.2 1:24.38 0.375 90 101,787.6 2,977,287.36 1:29.25 0.45 105 138,544.2 4,727,822,1 1:34.13 0.525 120 180,955.7 7,057,273.74 1:50.94 0.6 135 229,022.1 10,048,344.8 1:43.88 0.675 150 2822,743.3 13,783,737.77 1:48.75 0.75

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?

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#### Straighterline BIO201L Lab 2 Cell Structure and Function Worksheet

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