What is the total magnification of the microscope with having a ocular lens of 10X and objective lens of 40X?
Total magnification = 400X
Name one advantage of microscope in field of physiology?
To observe objects that are too small to be seen with the naked eye, for abnormalities in function or count.
Draw or paste what your cheek cells looked like?
See attachment
Name one function of mitosis?
Tissue repair / replacement (TOAD- Organismal Growth, Asexual Reproduction, Development (embryo))
Name the 4 phases of mitosis:
1.
2.
3.
4.
Prophase
Metaphase
Anaphase
Telophase
What did the water bath experiment show you? How is that similar to our body operation of homeostasis?
The temperature regulation in the water bath experiment is similar to body homeostatic controls, receptors,
control center and effector communications occurred in both. Water bath, water at room temperature normal
state, heat applied receptors communicate rise in temperature triggers control center to reach boiling point, once
boiling occurs, heat is turned off effector and water will slowly return to room temperature.
What was your resting Pulse rate? Fil lout the table below:
Beats per 15 sec
1
18
2
20
3
16
4
17
5
16
6
16
7
16
8
17
9
16
10
16
Beats per min.
72
80
64
68
64
64
64
68
64
64
Graph your pulse results or attach your graph Pulse vs trials
Название диаграммы
90
80
80
72
64
70
68
64
64
64
68
64
64
60
50
40
30
18
20
1
2
20
16
17
16
16
16
17
16
16
3
4
5
6
7
8
9
10
10
0
Beats per 15 sec
Beats per min.
What was your set point (mean or average)?
67.2; (mean = Sum total of variables)
# of variables
What was your range?
16 (highest value -lowest value on the range in ascending order)
Attach or provide the class data on pulse rate. Include # of students and % of the total. What pulse range majority
of the students falls under?
Provide data for the exercise and nonexercised group and indicate which group had lower average pulse rate?
Why do you think so?
Explain homeostasis and negative feedback and provide one physiological example. Make sure to indicate the
receptor, control center, and effector.
Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal
environment. Homeostatic control is managed by communication between the body systems using feedback
control loops. There are 4 main components within the feedback loop system; receptor, integrator control
center, and effector and the feedback can be either negative or positive. Negative feedback is the most prevalent
loop communication in the homeostatic control process; by driving the counter measures to return the variable
affected to its equilibrium set range and returning the body back to homeostatic levels. All of the organs and
systems in the body work to maintain homeostasis; for example, body temperature regulation. The homeostatic
body temperature set range is between 98.6 – 100.4 F. If body temperature rises above 100.4 F the detection of
this change (receptor) triggers a request (control central) to the integumentary system and more specifically the
skin’s sweat glands to start perspiration, which will release heat (effector) slowly returning the body temperature
back within the set range of 98.6 – 100.4 F.
Cheek Cells
References:
Mitosis
https://www.ck12.org/biology/mitosis/lesson/Mitosis-and-Cytokinesis-BIO/
https://ib.bioninja.com.au/standard-level/topic-1-cell-biology/16-cell-division/functions-of-mitosis.html