109 Answered Questions for the topic Biology Tutor

Biology Tutor Science Chemistry Waters

08/31/16

Can someone please help me with this question regarding hydrophobic molecules in water? CHEM/BIO- IM STUCK!!!
Which is the most accurate statement of the phenomenon underlying 'hydrophobicity', the clustering of oily molecules in the presence of water?Select one:a. it's all about size--oil molecules are... more
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Biology Tutor Science Biology Chemistry

08/24/16

How to calculate Delta pH and Total Buffer Range
We were doing a lab in biology which included testing how basic and acidic different liquid substances were, andwe would add different amounts of drops of NCI and NaOH liquid to see how good of a... more
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Biology Tutor

07/11/16

Biology question
at a nature preserve in northern california biologist recorded twenty species of native arts within a community these species resided apart from each other and maintained a healthy balance among... more
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Biology Tutor Biology

07/07/16

Earthworms
 What kind of food do earthworms like to eat most?
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Biology Tutor

06/12/16

compare the numbers and locations of stem cells in plants, newts and animals
compare the numbers and locations of stem cells in plants, newts and animals
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Biology Tutor

06/12/16

explain the techniques, pros and cons of obtaining the following types of stem cells: embryonic, therapeutic, umbilical, bone marrow
explain the techniques, pros and cons of obtaining the following types of stem cells:embryonic, therapeutic, umbilical, bone marrow
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Biology Tutor

04/06/16

organisms in the same phylum are more closely related than organisms in the same family?
this is an biology question and i need help answering it. can someone please help me answer this question?
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03/21/16

Cell bio - design an experiment (PIKfyve)
1) You found an inhibitor for PIKfyve. Design an experiment to demonstrate that PIKfyve is required for macrophage phagocytosis of IgG-opsonized red blood cells.   2) if you design a properly... more
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Biology Tutor Cellular Biology Biology,

03/06/16

what macromolecules do earthworms prefer ?
Does this mean what they eat ? 
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Biology Tutor Biology

12/28/15

HNO3 that has a pH of 3.75. What is [OH- ] for the solution?
A chemist is using a solution of HNO3 that has a pH of 3.75.What is [OH− ] for the solution?
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Biology Tutor

12/15/15

When will water move into a cell
A) equal inside a cell equal outside the cell B) 42% inside cell 48% outside the cell C) 95% inside the cell 90% outside the cell D) 90% inside the cell 95% outside the cell
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Biology Tutor

12/13/15

respitory system
Air moves through the respiratory system in a continuous cycle. Which of the following correctly describes the movement of air through the parts of the respiratory system?
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Biology Tutor

12/13/15

The phospholipids found in the plasma membrane of a cell are lipids. What makes it special?

A)it is the only lipid that can be unsaturated b)it contains a phosphate group c)it is the only lipid that can be saturated d)it contains DNA in its fatty acids
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12/05/15

Help! Please! Biology final question and I can't find anywhere in the book or online.
is it a set list of steps? Is it a formula? I cannot find it anywhere and its on my biology final. What steps are followed to sequence the gene for sickle cell anemia?  Thank you in advance!!
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Biology Tutor Biology

12/02/15

explain why sometimes the supernatant is found in the DNA and other times it is in the pellet
 need help on this college biology question
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Biology Tutor Science Biology Cells

11/10/15

I need help in Biology ASAP
Describe how the position of cell layers in a developing human embryo progresses to general cell differentiation.
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Biology Tutor

10/22/15

how might the population escape intense competition with another population?
Please help me im in need..
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Biology Tutor Ap Biology

09/22/15

Which graph depicts the rate of an enzyme-catalyzed reaction from low substrate concentrations to saturating substrate concentrations?
I am a little confused on what substrate means exactly... so in turn I am not exactly sure what the question is asking.I know the answer is C and I would like to know why. Also, what would the... more
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09/22/15

The tertiary structure and function of a polypeptide is prinicpally determined by the....
  I am stuck between B and D. Since A and C are most likely not correct, what structures would C and A apply to?   A) length of the polypeptide   B) number of nucleotides present in a... more
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09/22/15

The sequence of the amino acids is the _______ structure of proteins.
I know that A is the right answer but wouldn't all the four structures contribute to the sequence?     A) primary   B) secondary   C) tertiary   D) quaternary
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Biology Tutor Biology Graph Ph

09/22/15

The most likely explanation for the results shown in Graph I is that:
#40 For this question, I originally picked D, but it is not the right answer. I am really confused on how to solve this problem. I would like to know why D isn't correct, along with the other wring... more
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Biology Tutor Ap Biology

09/22/15

Which of the following correctly illustrates a dipeptide and an amino acid in the optimal position to form a tripeptide?
For this question, I would like to know exactly why A is the right answer, and why the remaining answers are wrong. I originally picked answer C.    I had to take a picture and post it on another... more
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Biology Tutor

09/16/15

is a chanel a molecule to passive transport?
 its biology and I cant find the nswer on the web
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Biology Tutor Biology

08/02/15

when moving a plant from one place to another suggest why it is important to leave some original soil around the roots
please answer fast
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05/31/15

What is GM Salmon? And how is it made?
What is GM Salmon? And how is it made? Whats the impacts with it. Is it wrong or right? 
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