Question 11

Which of the following is a trace element in the human body?

Question 12

Which of the following statements regarding matter is false?

Question 13

Which of the following statements best describes a compound?

Question 14

In the equation 2 H2 + O2 ? 2 H2O,

Question 15

Which of the following particles are found in the nucleus of an atom?

Question 16

Which of the following best describes the atomic number of an atom?

Question 17

Typically, nitrogen atoms are composed of electrons, protons, and neutrons. An isotope of nitrogen could

Question 18

When full, the innermost electron shell of argon contains ________ electrons, and the outermost shell contains ________ electrons.

Question 19

A(n) ________ forms when two atoms share electrons.

Question 20

A hydrogen atom has one electron. How many covalent bonds can hydrogen form?

1. In commercial crop production, growers often plant large quantities of just a few plant varieties. What is a major problem associated with this practice?

1. When sac fungi that grow as molds reproduce asexually, they _____.

1. Powdery mildews (sac fungi) and rusts and smuts (club fungi) lead to the demise of plants by _____.

How we can get a benefit from association colloids in pharmaceutical field

( This is the 3 topic for question 1) DNA is a double-stranded helix, DNA and RNA are polymers of nucleotides, DNA replication depends on specific base pairing

1) Post three topics or quotes that you found interesting from chapter 10, and explain why. Also respond to at least three other classmates using the 3C+Q method.

2) Name three changes that you could make to decrease your ecological footprint.

3) What can we do to preserve and restore biodiversity?

4) What can we do to limit climate change?

5) Just for fun, I saw this article pop up on social media a few months ago. I thought it was interesting and related to the material.  Tell me what you think.

Compare and contrast transformation, transduction and conjugation. Include at least 5 different comparisons/contrasts between all three.

What drives the uptake of soil solution by plant roots?

a. active transport of soil solution into the root hairs and to the stele

b. osmosis of water from soil toward mineral concentrations in the roots

c. root pressure builds and generates the one way flow of water into the roots from the soil

d. different water pressures of the symplastic and apoplastic pathway result in a concentration gradient that attracts water

e. transpirational pull of water draws water from the soil into the plant

1.) A researcher unexpectedly identified mutant bacteria deficient in the FtsZ protein. Their growth appeared filamentous, and displayed incomplete cell division. Explain the role of the FtsZ protein and how a deficiency would account for this altered growth.

2.)Why could understanding bacterial cell division have practical medical applications?

Which does not describe a major difference in the growth of plants versus the growth of animals?

Select one:

a. Plants can grow by producing additional phytomers; animals grow by enlarging.

b. A baby plant has fewer phytomers than an adult plant; a baby animal is smaller than but almost identical to an adult animal.

c. Some plant growth is determinate; all animal growth is determinate.

d. Plants undergo both primary and secondary growth; animals undergo only primary growth.

e. Plants grow by producing new cells from their apical and lateral meristems; animals grow by producing new cells in many different regions of their bodies.

In the FAB classification of leukemia, Acute Myelomonocytic Leukemia is:  

a. M1

b. M2

c. M3

d. M4

e. M5

Which FAB classification is represented by the following data:

Blasts comprise 50% of the nucleated cells in the peripheral blood

30% of blasts are Peroxidase weakly positive

Most Blasts are non-specific esterase positive

All Blasts are specific esterase negative      

a. M2

b. M3

c. M5

d. M6

e. M7

Please answer this question ASAP an explain in detail. I really need it before the night is over.

a) Explain what a catalytic process is and how it is different from the non-catalytic version of the process. Give an example of an enzymatic process other than amylase and describe the substrate(s)/product(s):

b) Describe what the enzyme amylase does and what would happen in the absence of this enzyme:

How would you describe bulk density of soil to a non-scientist? Include some examples of bulk densities and your interpretation of those values.

Living things are over 70% water. This is central to life of earth. Explain how the structure of water directly relates to its role at the solvent of life. Include in your discussion the geometry and shape of the water molecule, the approximate angle formed within and why this angle forms, how water molecules interact with each other, and how this directly relates to its role as the principle component in living things. Also include in your description why the ability of the water molecule to ionize is important to living processes, as well as what role structured water plays in a cell. Would living things be able to be composed of 70% sand? Why or why not? Does this design of water as the perfect solvent of life speak to an all-knowing God as the creator and designer of all living things?

The PFK1 enzyme is regulated by a number of factors in the cell, including the level of ATP. ATP is not only

involved in the reaction the enzyme catalyses but also binds to an allosteric site leading to a reduction in

activity.

The binding of ATP can be measured using a fluorescently labelled derivative of ATP – TNP-ATP. The data

presented below represents the determination of the binding of ATP to PFK. The change in fluorescence (?

fluor.) represents the concentration of PFK1 with TNP-ATP bound. This value was determined at 5

different concentrations of TNP-ATP, and the experiment was carried out in triplicate.

a) Create a double reciprocal plot of this data (1/[TNP-ATP] vs. 1/ ? fluor.). Plot the data from

each experiment as a separate dataset on the same graph. Only plot the data points – do

not join data points with lines. Ensure that each dataset is distinct from the others (use

alternate colours and/or shapes for the data points).

b) Fit an equation to each dataset separately. Do not show these on your plots. For each

experiment give the fitted equation and the value of Kd. Show these in a table. Ensure you

include the units of this value. Show your working for the Experiment 1 data.

c) Determine the mean and standard deviation of the data for each concentration of TNPATP.

Show these in a table. Transform this data as you have done in (a). Fit an equation to

the transformed data. Give the fitted equation and the calculated Kd for the averaged

data. Add a trendline defined by this equation to your graph.

d) With reference the data you plotted and Kd values you determined, explain the positive

and negative aspects of using a double reciprocal plot.

4. What is the law of independent assortment and what features of the cell cycle contribute to this phenomenon? Please be specific and concise.

5. briefly explain why is it possible to have a calico cat that is male?

6. Why don't we get insulin from pigs anymore to treat diabetes? Please be concise.