27 Jun BIO 161 Week 4 Lab 4 – Respiration and Fermentation
Question
Name:
Section Number
Name of Lab: Lab 4-Respiration and Fermentation
Date Completed:
Directions:
· Fill in the following fields as completely and accurately as possible. Please be sure to practice appropriate grammar, punctuation, and spelling.
· When finished, save your document with a file name that includes your name, section number, and the assignment (i.e. RoyMason_Lab4_Sect3536.doc). Please only send .doc or .rtf files. Work submitted in any other format will not be graded.
· Attach your Lab 4, in the assignment section of BB, before midnight on the day it is due. Late work will not be accepted.
·We would like you to time yourself on these labs to see how long it takes you to work through them. Please take notice of the time you start your lab and note it down. When you’re completed write the time lapsed at the top of your answer sheet. In the box provided.
Time:
Part 1—Yeast and Temperature
Observations: Your observation should be short, 5 or 10 word descriptions of what you see.
Time
Cold
Room Temp
Hot
Initial
5 min
10 min
15 min
20 min
25 min
30 min
Part 2—Yeast and Energy Source
Observations: Your observation should be short, 5 or 10 word descriptions of what you see.
Time
Salt
Sugar
Sugar Substitute
Initial
5 min
10 min
15 min
20 min
25 min
30 min
Questions:
1. What is the difference between a typical autotroph and a typical heterotroph? Why is the answer not as simple as “one is a plant and one is an animal”?
2. Define metabolism. What would cause an organism that normally produces ATP by respiration to switch to producing it by fermentation?
3. In which of your temperature experiments (Part 1) did the yeast show the most activity? Why, from a biological perspective, do you think this is?
4. In which of your energy source experiments (Part 2) did the yeast show the most activity? Why, from a biological perspective, do you think this is?
5. Based on what you know about respiration and fermentation, which was happening (respiration or fermentation) in the bottles? What filled (or should have filled) the
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.