Biochemistry

Cells can regulate the rate of the TCA cycle using all the following ways, EX

Cells can regulate the rate of the TCA cycle using all the following ways, EX

 
Cells can regulate the rate of the TCA cycle using all the following ways, EXCEPT   
A)
 
controlling the concentration of the substrate.   
B)
 
controlling the concentration of the required enz

Jermain_   250   2 Replies

Jermain_

Cells within the adipose tissue that store lipids are called

Cells within the adipose tissue that store lipids are called

 
Cells within the adipose tissue that store lipids are called   
A)
 
adipocytes.   
B)
 
fat bodies.   
C)
 
hepatopancreas.   
D)
 
blubber.   

Jermain_   289   2 Replies

Jermain_

Diffusion of a solute through a solution is decreased by an

Diffusion of a solute through a solution is decreased by an

 
Diffusion of a solute through a solution is decreased by an   
A)
 
increased concentration gradient.   
B)
 
increased size of molecule.   
C)
 
increased diffusion coeffici

Jermain_   620   2 Replies

Jermain_

Electrons can enter the electron transport system via many paths. The first p

Electrons can enter the electron transport system via many paths. The first p

 
Electrons can enter the electron transport system via many paths. The first point of commonality in the ETS for all these paths is   
A)
 
complex I.   
B)
 
complex II.   
C)
 

Jermain_   385   2 Replies

Jermain_

Glycerol molecules connected to three fatty acids are termed

Glycerol molecules connected to three fatty acids are termed

 
Glycerol molecules connected to three fatty acids are termed   
A)
 
monoacylglycerides.   
B)
 
diacylglycerides.   
C)
 
triglycerides.   
D)
 
cholest

Jermain_   288   2 Replies

Jermain_

Glycolysis is an important metabolic pathway for the production of ATP becaus

Glycolysis is an important metabolic pathway for the production of ATP becaus

 
Glycolysis is an important metabolic pathway for the production of ATP because   
A)
 
it can proceed with or without oxygen.   
B)
 
it can produce ATP quickly.   
C)
 
it c

Jermain_   387   2 Replies

Jermain_

Lipids used as a major component of biological membranes include

Lipids used as a major component of biological membranes include

 
Lipids used as a major component of biological membranes include   
A)
 
phospholipases.   
B)
 
sphingolipids.   
C)
 
free fatty acids.   
D)
 
both A

Jermain_   406   2 Replies

Jermain_

Once the activation energy has been transferred to a molecule,

Once the activation energy has been transferred to a molecule,

 
Once the activation energy has been transferred to a molecule,   
A)
 
it has reached the transition state.   
B)
 
it will always return to the substrate conformation.   
C)
 

Jermain_   605   2 Replies

Jermain_

Production of ATP by the mitochondrial ATP synthase is increased by

Production of ATP by the mitochondrial ATP synthase is increased by

 
Production of ATP by the mitochondrial ATP synthase is increased by   
A)
 
high levels of ATP.   
B)
 
high levels of ADP.   
C)
 
low levels of physical activity.   

Jermain_   332   2 Replies

Jermain_

Some of the most common buffers in animal cells are effective because

Some of the most common buffers in animal cells are effective because

 
Some of the most common buffers in animal cells are effective because   
A)
 
they have a pK value that is close to the normal pH of the cell.   
B)
 
they can bind with H+ in a chemical reaction

Jermain_   304   2 Replies

Jermain_

The __________ structure of proteins involves interactions of amino acids tha

The __________ structure of proteins involves interactions of amino acids tha

 
The __________ structure of proteins involves interactions of amino acids that are found on different subunits.   
A)
 
primary   
B)
 
secondary   
C)
 
tertiary   

Jermain_   352   2 Replies

Jermain_

Two compartments are separated by a membrane that is permeable to water and u

Two compartments are separated by a membrane that is permeable to water and u

 
Two compartments are separated by a membrane that is permeable to water and urea. Compartment I contains 1 M NaCl. Compartment II contains 2 M urea. Which of the following is a correct statement of their relationship based on the initial

Jermain_   612   2 Replies

Jermain_

What is the correct relationship between chemical reactions and temperature?

What is the correct relationship between chemical reactions and temperature?

 
What is the correct relationship between chemical reactions and temperature?   
A)
 
All chemical reactions are endothermic, and therefore require warmer temperatures.   
B)
 
Warmer temperatures

Jermain_   408   2 Replies

Jermain_

What is the osmolarity of a solution containing 3 M MgCl2 and 2 M glucose?

What is the osmolarity of a solution containing 3 M MgCl2 and 2 M glucose?

 
What is the osmolarity of a solution containing 3 M MgCl2 and 2 M glucose?   
A)
 
5 OsM   
B)
 
8 OsM   
C)
 
11 OsM   
D)
 
10 OsM   

Jermain_   612   2 Replies

Jermain_

When two or more hormones are __________, then the response of all the hormon

When two or more hormones are __________, then the response of all the hormon

 
When two or more hormones are __________, then the response of all the hormones when applied at the same time is greater than the sum of the responses to each hormone applied individually. 
A)
 
antagonistic   

Jermain_   329   2 Replies

Jermain_

Which of the following is a benefit of using phosphocreatine to store energy

Which of the following is a benefit of using phosphocreatine to store energy

 
Which of the following is a benefit of using phosphocreatine to store energy (as compared to ATP)?   
A)
 
Phosphocreatine can be used by almost any process requiring an input of energy.   
B)
 

Jermain_   449   2 Replies

Jermain_

Why is ATP an important molecule?

Why is ATP an important molecule?

 
Why is ATP an important molecule?   
A)
 
It links major pathways that release energy with those that require energy.   
B)
 
It is an energy source that is found in high concentrations in cells.

Jermain_   231   2 Replies

Jermain_

__________ are a group of steroid hormones found in vertebrates and invertebr

__________ are a group of steroid hormones found in vertebrates and invertebr

 
__________ are a group of steroid hormones found in vertebrates and invertebrates.   
A)
 
Insulin-like growth factors   
B)
 
Androgens   
C)
 
Glucocorticoids   

Jermain_   345   2 Replies

Jermain_

__________ enters the TCA cycle and forms NADH and FADH2, which can then be u

__________ enters the TCA cycle and forms NADH and FADH2, which can then be u

 
__________ enters the TCA cycle and forms NADH and FADH2, which can then be used for ATP production.   
A)
 
Acetyl CoA   
B)
 
Glucose   
C)
 
Pyruvate   
D)

Jermain_   348   2 Replies

Jermain_

Compared to pyruvate, the carbon atoms in lactate ________.

Compared to pyruvate, the carbon atoms in lactate ________.

    
Compared to pyruvate, the carbon atoms in lactate ________.

A) are more reduced
b) are more oxidized
c)carry more charge
d) are equally oxidized
e) are more nucleophilic

user01   505   2 Replies

sounique022

In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many ...

In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many ...

In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many moles of hydrogen are needed to react with 1.22 mol of nitrogen?

YeahYou   647   1 Reply

wmyers

6. Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O2(g) ⇌ 2 NO2(g) What is ...

6. Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O2(g) ⇌ 2 NO2(g) What is ...

6. Nitric oxide reacts with oxygen to form nitrogen dioxide:
2 NO(g) + O2(g) ⇌ 2 NO2(g)
What is Kc' for the reverse reaction if the equilibrium concentration of NO is 0.300 M, O2 is 0.200 M, and NO2 is 0.530 M at 25°C?
 

Akinwamide Kehinde Michel   354   1 Reply

bio_man

Active sodium ion pumping in a membrane

Active sodium ion pumping in a membrane

Hello

Assume I have a membrane of volume V, and potential Vm across it.Inside, there's some concentration of sodium Cna(in), chloride Ccl(in) and neutral macromolecule b (Cb).

Also, the sodium is being actively transported

M_M_S   385   N/A

M_M_S

Energy output. The Gibb’s free energy value for glucose is -2870kJ/mol or -686k

Energy output. The Gibb’s free energy value for glucose is -2870kJ/mol or -686k

 Energy output. The Gibb’s free energy value for glucose is -2870kJ/mol or -686kcal/mol. If the one molecule of ATP releases 30.5 kJ/mol or 7.3 kcal/mol, calculate the theoretical efficiency (showing your work) for cellular respiration and for anaero

sara11   453   2 Replies

padre

function of liver glycogen

function of liver glycogen

Is the function of liver glycogen different from that of muscle due to the lack of the enzyme glucose-6-phosphatase in the liver?

Steve8530   220   1 Reply

bio_man

Help me in :- calculation the number of 1- linoleic acid and 2- tripolmitin

Help me in :- calculation the number of 1- linoleic acid and 2- tripolmitin

Biochemist aya   4117   7 Replies

lewis

How many atoms are in 3.00 moles of NA

How many atoms are in 3.00 moles of NA

CAN SOMEONE HELP

sharlene Dolphin   103   1 Reply

bio_man

Lipoproteins that are formed within the intestinal epithelium to transfer dieta

Lipoproteins that are formed within the intestinal epithelium to transfer dieta

 Lipoproteins that are formed within the intestinal epithelium to transfer dietary fats into circulation are called ________. 

nite_n_day   1398   2 Replies

nite_n_day

non-biological characteristics that distinguish human beings from other animals

non-biological characteristics that distinguish human beings from other animals

non-biological characteristics that distinguish human beings from other animals

june40   1040   3 Replies

wizarddim

purity analysis of proteins

purity analysis of proteins

i am working on the subject, and now ,i want to analyze the purity of proteins and i want to get some examples. and my friend recommended a company-http://www.creative-proteomics.com for me. and i do not

SABRINAwang   494   2 Replies

dtimmons95

structure of the lipid derived from glycerol and three moles of palmitric acid

structure of the lipid derived from glycerol and three moles of palmitric acid

show the structure of the lipid derived from glycerol and three moles of palmitric acid.

 structure of the lipid derived from glycerol and oleic acid

hina amjed   650   1 Reply

padre

table sugar is placed into a negative control flask. Explain the effect this would have

table sugar is placed into a negative control flask. Explain the effect this would have

For this question, im a little confused as to what the effects would be on the other nutrients. For example, I think the sugar might reduce but I still think I'll need an explanation for the answer as I'm confused as to how it would effect

Krystal209   127   5 Replies

Krystal209

True or False?

True or False?

True or False? Lipids contain substantially more oxygen than carbohydrate molecules. Based on your answer, what does that suggest about lipid solubility in water?

ppk   1077   2 Replies

Bio_World100

what are properties of water and how these props. effect living organisms?

what are properties of water and how these props. effect living organisms?

.... i don't know what this is for (.-.)

kirby1001   2663   3 Replies

f_zah1

What is the width of the bilayer that could be spanned by this helix?

What is the width of the bilayer that could be spanned by this helix?

Glycophorin A is a glycoprotein that extends across the red blood cell membrane. The portion of the polypeptide that extends across the membrane bilayer contains 19 amino acid residues and is folded into a helix. What is the width of the bilayer that

Deanie   683   1 Reply

bio_man

What role do buffer systems play in the human body?

What role do buffer systems play in the human body?

 What role do buffer systems play in the human body? 

nite_n_day   3318   2 Replies

nite_n_day

what would happen to the atp if the cori cycle was to remain in a single cell

what would happen to the atp if the cori cycle was to remain in a single cell

what would hypothetically happen to the amount of ATP available to a cell if the entire Cori cycle were to occur and remain within a single cell such as a muscle cell?

RN2018   3577   2 Replies

habiba

Which of the following is not included in the urea cyle ?

Which of the following is not included in the urea cyle ?

 Which of the following is not included in the urea cyle ?
A)Ornithine
B)Citrulline
C)Arginine
D)Threanine
E)Arjininosükrinat   

tugradmrc   523   3 Replies

padre

________ creates 90 percent of the ATP normally generated.

________ creates 90 percent of the ATP normally generated.

 ________ creates 90 percent of the ATP normally generated.

nite_n_day   2132   2 Replies

nite_n_day

"Fossil fuels can be used to convert chemical energy into electrical energy in a power plant"?

"Fossil fuels can be used to convert chemical energy into electrical energy in a power plant"?

is that sentence correct.
Is it chemical energy or another type of energy?

bugaian   576   1 Reply

ilkat