In the Cell Types Gizmo, you will use a light microscope to compare and contrast different samples. On the LANDSCAPE tab, click on the Elodea leaf. (Turn on Show all samples if you can’t find it.) Switch to the MICROSCOPE tab to observe the sample as it would appear under the microscope. By default, this microscope is using 40x magnification.
Drag the Coarse focus slider until the sample is focused as well as possible. Then, improve the focus with the Fine focus slider. Select the 400x magnification. If necessary, adjust the fine focus. The individual chambers you see are cells, the smallest functional unit of an organism. Click on the show labels button.
Question 1
1.
State four structures that are found in an elodea leaf.
Question 2
2.
Observe: An organelle is a cell structure that performs a specific function. Observe the samples below under the highest magnification. Click the Show labels checkbox to label the organelles.
Question 3
3.
State 3 organelles you see in the mouse skin.
Question 4
4.
State 3 organelles you see in the fly muscle
Question 5
5.
State 3 organelles you see in the maple leaf
Question 6
6.
State 3 organelles you see in the protista
Question 7
7.
State 3 organelles you see in the fungi
Question 8
8.
What do all of these samples have in common?
In eukaryotic cells, genetic material is contained inside a distinct, membrane-bound nucleus. Plant and animal cells are classified as eukaryotes.
Observe: Click on the cow and observe E. coli under the highest magnification. Notice the microscope magnification is larger for this organism, and notice the scale bar is smaller.
Question 9
9.
What organelles are present in E.coli?
Question 10
10.
What organelle is missing from E.coli?
Question 11
11.
Question 12
12.
Question 13
13.
Joelle and Marcus are arguing about the cell structures in living things. Marcus says all cells have the same structures, while Joelle says that some cells have different structures. They each want to prove they are right. Andre’ was tired of listening to them argue and told them they needed to “prove it”.
The following questions are about the human neuron.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
Question 18
18.
Question 19
19.
The following questions are about microalgae
Question 20
20.
Question 21
21.
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
The following questions are about protista.
Question 26
26.
Question 27
27.
Question 28
28.
Question 29
29.
Question 30
30.
Question 31
31.
The following questions are about fungus.
Question 32
32.
Question 33
33.
Question 34
34.
Question 35
35.
Question 36
36.
The following questions are about the human red blood cell
Question 37
37.
Question 38
38.
Question 39
39.
Question 40
40.
Question 41
41.
Question 42
42.
The following questions are about Human skin cells
Question 43
43.
Question 44
44.
Question 45
45.
Question 46
46.
Question 47
47.
Question 48
48.
Question 49
49.
Marcus says all cells have the same structures, while Joelle says that some cells have different structures. After collecting evidence, do you agree with Joelle or Marcus? Why? Share your evidence to support your reasoning. You need at least 2 pieces of evidence.
According to the microscope image, are elodea eukaryotic or prokaryotic cells?
prokaryotic
eukaryotic
What type of cell are E.coli?
prokaryotic
eukaryotic
Compare: Look at the Sand/silt sample under the microscope.Turn on Show labels. Does sand//silt have any internal structures?
yes
no
Do you think sand is alive?
yes
no
Click on the human neuron, do human neurons have a chloroplast?
yes
no
Click on the human neuron, do human neurons have a nucleus?
yes
no
Click on the human neuron, do human neurons have a cell membrane?
yes
no
Click on the human neuron, do human neurons have a cytoplasm?
yes
no
Click on the human neuron, do human neurons have a cilia/flagellum?
yes
no
Click on the human neuron, do human neurons have a cell wall?
yes
no
Click on the microalgae, do microalgae have a chloroplast?
yes
no
Click on the microalgae, do microalgae have a nucleus?
yes
no
Click on the microalgae, do microalgae have a cell membrane?
yes
no
Click on the microalgae, do microalgae have a cytoplasm?
yes
no
Click on the microalgae, do microalgae have a cilia/flagellum?
yes
no
Click on the microalgae, do microalgae have a cell wall?
yes
no
Click on the protista, do protista have a chloroplast?
yes
no
Click on the protista, do protista have a nucleus?
yes
no
Click on the protista, do protista have a cell membrane?
yes
no
Click on the protista, do protista have a cytoplasm?
yes
no
Click on the protista, do protista have cilia/flagellum?
yes
no
Click on the protista, do protista have cell wall?
yes
no
Click on the fungus, do protista have chloroplast?
yes
no
Click on the fungus, do protista have nucleus?
yes
no
Click on the fungus, do protista have cell membrane?
yes
no
Click on the fungus, do protista have cilia/flagelllum?
yes
no
Click on the fungus, do protista have cell wall?
yes
no
Click on the human red blood cell, do human red blood cell have chloroplast.
yes
no
Click on the human red blood cell, do human red blood cell have a nucleus
yes
no
Click on the human red blood cell, do human red blood cell have a cell membrane?
yes
no
Click on the human red blood cell, do human red blood cell have cytoplasm?
yes
no
Click on the human red blood cell, do human red blood cell have cilia/flagellum?
yes
no
Click on the human red blood cell, do human red blood cell have cell wall?
yes
no
Click on the human skin cell, do skin cells have chloroplast?
yes
no
Click on the Human skin cell, do skin cells have a nucleus?
yes
no
Click on the Human skin cell, do skin cells have a cell membrane?
yes
no
Click on the Human skin cell, do skin cells have cytoplasm?
yes
no
Click on the Human skin cell, do skin cells have cilia/flagellum?
yes
no
Click on the Human skin cell, do skin cells have a cell wall?