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Lochan U

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Numerade tutor for 4 years
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Lochan's Quick Ask Videos

02:08
Biology

6. Plan a meal that contains all four major macromolecules you
learned about. Explain how each macromolecule is essential to the
functioning of the human body. (6 points)
7. In terms of molecular bonds, why do starches supply more
energy than simple sugars?
8. Why would starch be better to eat before a long race than
glucose?

02:22
Biology


Horticulture is a distinctive type of farming marked by the use
of _________ tools on comparatively small plots of land.
Individual plots of land, or gardens, are frequently located around
a ___________. Even thought complex social systems are
usually not developed by horticulturalists, some kind of
arrangement of ____________________ is necessary.

05:42
Biology

You have 5 glucose molecules and 2 triglyceride molecules
(comprised of stearic acid). There is plenty of oxygen so all of
your substrate will undergo oxidative phosphorylation. Start with
your glucose molecules and trace them through glycolysis, the Krebs
cycle, and the electron transport chain. Remember that 2 pyruvate
are produced from each glucose molecule. The triglyceride is
composed of a glycerol and 3 fatty acid chains of stearic acid (a
18 carbon saturated fatty acid). Your triglyceride molecules will
go through beta-oxidation. The end product of beta-oxidation is
acetyl-CoA. The acetyl-CoA that is produced from beta-oxidation
will then enter the Krebs cycle, while the NADH and FADH2 produced
during beta-oxidation will go directly to the electron transport
chain. Remember, there are three fatty acid chains on each
triglyceride molecule.
1. How many total ATP are used for the "investment phase" of
glycolysis for 8 glucose molecules?
2. How many total ATP are produced during the "energy generation
phase" of glycolysis for 8 glucose molecules?
3. How many NADH will be produced from the 8 molecules of
glycolysis?
4. What is the total number of pyruvates formed from the 8
glucose molecules?
5. How many ATP (gross) will be formed from the breakdown of 8
glucose molecules?
6. How many ATP (net) will be formed from the breakdown of 8
glucose molecules?

01:29
Biology

What are the unique properties of true fungi that distinguish
them from 1) prokaryotes, 2) plants and 3) animals. List at
least 2 properties for each distinction.

02:00
Biology

If enough acid is added to a solution to increase H+ concentration to 1*10^-6 M, then the OH- will be ____ and the solution will be?
a. 1*10^5, acidic
b. 1*10^-8, basic
c. 1*10^-8, acidic
d. 1*10^-9, basic

03:38
Biology

1. How are white fat cells, brown fat cells, and beige fat cells different from one another?
2. In your own words, explain how mitochondria in brown fat cells use the energy in food molecules to generate heat by thermogenesis.
3. How might the manipulation of beige fat cells in the human body be a cure for obesity?
4. List (but DO NOT explain) two topics from other units in Bio2 that are directly discussed in this article. This link may help: https://www.americanscientist.org/article/can-skinny-fat-beat-obesity#

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