Login

Join for Free!
112522 members


3 questions i cant figure out-energy enzymes, and metabolism

Discussion of all aspects of cellular structure, physiology and communication.

Moderator: BioTeam

3 questions i cant figure out-energy enzymes, and metabolism

Postby jutter » Thu Oct 14, 2010 7:16 pm

1. The reaction: ATP to ADP + Pi releases 7.3 kcal/mol of energy. For each reaction indicate how much ATP the reaction would require or generate.

Requires 1ATP:
A. 1,3 biphosphoglycerate to glyceraldhyde 3-P
-12.5kcal/mol
B. Active transport of Na ion +9.4 k/cal/mol
C.Glucose to G-6-P
D. Creatine to creatine-P +11kcal/mol
E. PEP to pyruvate -14.8kcal/mol

Requires 2ATP:
A. 1,3 biphosphoglycerate to glyceraldhyde 3-P
-12.5kcal/mol
B. Active transport of Na ion +9.4 k/cal/mol
C.Glucose to G-6-P
D. Creatine to creatine-P +11kcal/mol
E. PEP to pyruvate -14.8kcal/mol

Generates 1ATP:
A. 1,3 biphosphoglycerate to glyceraldhyde 3-P
-12.5kcal/mol
B. Active transport of Na ion +9.4 k/cal/mol
C.Glucose to G-6-P
D. Creatine to creatine-P +11kcal/mol
E. PEP to pyruvate -14.8kcal/mol






2. When a biological molecule is oxidized, the electrons are often captured by NAD. With that knowledge, identify if the substrate in each reaction is being oxidized or reduced.

Reduced:
A.Ethanol +2NAD->Acetic Acid +2NADH
B. Malate +NAD ->Oxaloacetate +NADH
C. Pyruvate + NADH ->Lactate +NAD
D. Isocitrate + NAD -> alpha ketoglutarate + CO2 +NADH
E. Diphosphoglycerate + NADH -> Glyceraldehyde phosphate + NAD

Oxidized:
A.Ethanol +2NAD->Acetic Acid +2NADH
B. Malate +NAD ->Oxaloacetate +NADH
C. Pyruvate + NADH ->Lactate +NAD
D. Isocitrate + NAD -> alpha ketoglutarate + CO2 +NADH
E. Diphosphoglycerate + NADH -> Glyceraldehyde phosphate + NAD





3. Identify the method of regulation that is used in each example.
1. Athletes who train at high altitudes produce more of the protein erythropoetin (EPO) which results in increased red blood cell production.
A.Cellular regulation
B.Biochemical regulation
C.Gene regulation

2. In an animal cell, fats are primarily metabolized in mitochondria and synthesized in the cytoplasm.
A.Cellular regulation
B.Gene regulation
C.Biochemical regulation

3. Most adults have lactose intolerance unless they continuously consume dairy products, increasing their production of the enzyme lactase.
A.Gene regulation
B.Biochemical regulation
C.Cellular regulation

4. Insulin increases cellular uptake and storage of glucose.
A.Cellular regulation
B.Biochemical regulation
C.Gene regulation

5. Cholesterol inhibits HMG-CoA reductase, the rate limiting enzyme in cholesterol synthesis.
A.Gene regulation
B.Biochemical regulation
C.Cellular regulation
jutter
Garter
Garter
 
Posts: 2
Joined: Thu Oct 14, 2010 7:12 pm

Postby canalon » Thu Oct 14, 2010 8:46 pm

RTFM: about13990.html
Honestly do a bit of research by yourself it is not that complicated if you want to use more than 1 neuron.
Patrick

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)
User avatar
canalon
Inland Taipan
Inland Taipan
 
Posts: 3909
Joined: Thu Feb 03, 2005 2:46 pm
Location: Canada

Postby JackBean » Tue Nov 29, 2011 2:32 pm

3 questions?
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5652
Joined: Mon Sep 14, 2009 7:12 pm



Return to Cell Biology

Who is online

Users browsing this forum: No registered users and 2 guests

cron