Compute the northing and easting coordinates for each point on the traverse, assume A=1500.00 northing and 1500.00 easting.
Compute the area of the traverse in square feet and acres.
AB N31°22’E 261.27’
BC N79°11’E 322.78’
CD S19°59’W 517.66’
DA N53°42’W 342.16’
In: Civil Engineering
explain why the carbons of even chain fatty acids can never be used to synthesize NET glucose, but that the 14C from labeled fatty acids will be found in glucose.
In: Chemistry
In: Chemistry
1. A photoautotroph is an organism that
-Is a decomposer.
-Must obtain organic compounds for its carbon needs.
-Gets energy from sunlight.
-Gets energy by oxidizing chemical compounds.
-Does not need a carbon source.
2. An organism that is harmed by the presence of oxygen in the environment is a(n)
-Aerobe.
-Obligate aerobe.
-Facultative anaerobe.
-Microaerophilic.
-obligate anaerobe
3. Formation of peptide bonds between amino acids to build a polypeptide would be called
-Anabolism.
-Phosphorylation.
-Fermentation.
-Exergonic.
-Glycolysis.
4. Each of the following are denaturing agents except
-High temperature.
-Low temperature.
-High pH.
-Low pH.
-All of the choices are correct.
5. An organism that uses CO2 for its carbon needs would be called a(n)
-Heterotroph.
-Autotroph.
- Chemoheterotroph
-Saprobe.
- Halotroph
6. During replication, each parent DNA strand serves as a _____ for synthesis of new DNA strands.
-copy point
-template
-comparison molecule
-scaffold
-reservoir
7. In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, what is the maximum number of ATP generated?
-2 ATP
-3 ATP
-24 ATP
-42 ATP
-38 ATP
8. Replication of DNA begins at a(n) ______ rich area.
-Guanine-cytosine.
-Uracil-adenine.
-Adenine-thymine.
-Adenine-cytosine.
-Guanine-adenine.
9. Which of the following is not associated with a bacterial ribosome?
-is a 70S
-has a peptide (P) site
-has an exit site
-small unit provides the enzymes for making peptide bonds
-has an amino acid (A) site
10. Human pathogens fall into the group
-Psychrophiles.
-Thermophiles.
-Halophiles.
-Mesophiles.
-Acidophiles.
11. A sequence of bases on a gene that does not code for protein is called a(n)
-Promoter
-Operator
-Operon
-Exon
-Intron
12. A mutation that changes a normal codon to a stop codon is called a
-Point mutation.
-Silent mutation.
-Back mutation.
-Missense mutation.
-Nonsense mutation.
13. All of the following are true of enzymes except
-Enzymes increase the rate of a chemical reaction.
-Enzymes are not part of the products of a chemical reaction.
-Enzymes create a chemical reaction.
-Enzymes are not consumed in a chemical reaction
14. A frame shift is caused by ______ mutations.
-Missense and insertion
-Missense and nonsense
-Nonsense and deletion
-Deletion and insertion
-Insertion and nonsense
15. What is the definition of Generation Time
16. Vitamins are important components of coenzymes
True
False
17. DNA replication proceeds in one direction around the bacterial chromosome
True
False
18. Enzymes that hydrolyze a peptide bond are called ligases.
True
False
19. Transposons can change the genome
True
False
20. Ribosomes are composed of ribosomal RNA and protein.
True
False
21. The jumping of a gene from one location to another is done by transposons.
True
False
22. Transformation is a type of horizontal gene transfer
True
False
23. Bacterial conjugation involves a donor cell with a plasmid that synthesizes a pilus.
True
False
24. Transcription occurs on a ribosome in the cytoplasm.
True
False
25. Full induction of the lactose operon requires lactose present without glucose.
True
False
26. A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with _______
27. An organism that requires a small amount of oxygen but won't grow at normal atmospheric levels is a __________
28. A permanent, inheritable change in the genetic information is called a _________
29. For DNA replication, a primer of ____ is needed at the origin of nucleotide addition.
30. An organism that can exist in both oxygen and oxygen less environments is a ____________________.
31. The property of organisms to integrate catabolic and anabolic pathways to improve cell efficiency is called ______
32. If the mRNA codon for alanine is GCA, then the correct anticodon would be ___.
33. An example of inducible operon is the _____ operon.
34. Reverse transcriptase is used to make ______ from an RNA template.
35. Environmental factors that influence microbial growth are (all that apply)
-temperature
-gases
-pH
-osmotic
-pressure
-radiation
-hydrostatic
-pressure
36. The three main types of symbiosis are ____, _____, and _____.
-amphibolism, commensalism and parasitism.
-anabolism, catabolism and metabolism.
-mutualism, commensalism and parasitism.
-catabolism, metabolism, and parasitism.
37. The two general categories of metabolism are ____ and ____.
-anabolism and catabolism.
-mutualism and parasitism.
-commensalism and parasitism
-anabolism and parasitism.
38. ______ refers to the process of one bacterial cell becoming two.
39. At the ____ growth phase, the population enters a period during which the rates of cell birth and cell death are more or less equal.
In: Biology
Consider a spacecraft that is far away from planets or other massive objects. The mass of the spacecraft is M = 1.5×105 kg. The rocket engines are shut off and the spacecraft coasts with a velocity vector v = (0, 20, 0) km/s. The space craft passes the position x = (12, 15, 0) km at which time the spacecraft fires its thruster rockets giving it a net force of F = (6 × 104 , 0, 0) N which is exerted for 3.4 s. The ejected gases have total mass that is small compared to the mass of the spacecraft. a) Where is the space craft 1 hour afterwards? b) What approximations have you made in your analysis?
Kepler’s second law is this statement: A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. We are going to prove this statement. Consider the wedge in the figure with area dA = 1 2 R 2 dθ The rate that area is swept per unit time is dA dt = 1 2 R 2 dθ dt = 1 2 R 2 ˙θ and this is true even if radius R is varying. We take the origin to be the center of the Sun and radius R is the distance between planet and Sun. The angle θ gives the position of the planet in the ecliptic plane. Kepler’s second law is equivalent to dA dt = constant or d 2A dt = 0. In class we showed that acceleration in polar coordinates can be written a = (R¨ − R ˙θ 2 )ˆr + (2R˙ ˙θ + R¨θ)θˆ Because the gravitational force is in the radial direction, the tangential component of acceleration is zero. This means that 2R˙ ˙θ + R¨θ = 0 Show that this relation is equivalent to dA/dt = constant and Kepler’s second law.
A spherical hollow is made in a sphere of radius R = 11.3 cm such that its surface touches the outside surface of the sphere and passes through its center (see Figure). The mass of the sphere before hollowing was M = 57.0 kg. What is the magnitude of the gravitational force between the hollowed-out lead sphere and a small sphere of mass m = 4.2 kg, located a distance d = 0.55 m from the center of the lead sphere?
In: Advanced Math
If a circular plasmid is cut one with a restriction enzyme what is the result?
how do we determine how many times a restriction enzyme cut.
In: Biology
define the following terms: biotechnology, plasmid, selectalbe marker, multiple cloning site, restriction enzyme, restriction enzyme site, DNA transformation, annealing
In: Biology
Explain how an organic solvent like hexane could inhibit enzyme action. . Explain how addition of base could inhibit enzyme action.
In: Chemistry
Q.The cells lining the proximal convoluted tubule have numerous microvilli and mitochondria. What is the implication of the presence of such structures and organelles?
a. Rapid osmosis occurs in the proximal convoluted tubule.
b. Energy-dependent active transport occurs in the proximal convoluted tubule.
c. The proximal convoluted tubule is the site of water conservation.
d. The proximal convoluted tubule is important in the storage of salts.
e. The production of urea requires a large amount of ATP.
Q. Which part of the kidney is the major site of glucose, amino acids, and vitamins resorption?
a. Bowman’s capsule.
b. The vasa recta.
c. The distal convoluted tubule.
d. The loop of Henle.
e. The proximal convoluted tubule.
Q. Two brine-filled compartments are separated by a water-permeable membrane (similar to the dialysis tubing we used in the laboratory). The solution in compartment A has a higher osmotic pressure than compartment B. This means that:
a. water will move from compartment B to compartment A.
b. water will move from compartment A to compartment B.
c. compartment A has a higher volume than compartment B.
d. the molecules in compartment A are larger than those in compartment B.
In: Biology
In: Anatomy and Physiology