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Describe the cohesion tension theory that enables water and dissolved minerals to be transported through dicot plants. You should also describe how water and dissolved minerals enter dicot plant roots. Be sure to include the following:
a) The direction of flow of water and the specific dicot plant structures and tissues through which water and dissolved minerals move from the soil, through the plant to the air.b) Indicate the biological processes whereby water and dissolved minerals move from the soil into roots as well as the role of the endodermis in controlling movement into the stele.c) Indicate whether water is under pressure as it is transported upwardd) indicate two properties of water that allow it to flow upward through a plante) Indicate specifically what causes water to move to great heights in trees
How does the pancreas regulate the metabolism of glucose.
The mitochondria a of mutant yeast strain is discovered to oxidize NADH even in the absensce of ADP. How would the P/O ratio of this mutant compare to the wilfe type?
Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous.
You need to prepare medium for your culture cells. Your salt solution is 10x concentration, dilute to 1x for use. You also need to add fetal bovine serum for a final concentration of 10%. What would you add of each for the correct concentration in..
Vitamin D resistant rickets is usually an X-linked dominant situation. The disease is caused by mutations the PHEX gene and results in bone deformity and bow leggedness.
Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second chromosome recessive mutations smooth abdomen and straw body.
What are the nucleotides at the intron boundaries of a DNA sequence that encodes the information of a protein with three exons?
Imagine the "hairy ear" gene is X-linked and dominant (H), to hairless ears (h). If you were a man w/hairless ears about to marry a woman whom you discover has hairy ears.
Assume you examine the stability of your favorite protein kinase and find that half of the protein is degraded every 10 minutes.
Present two factors contributing to the solid waste problem in the U.S. How could these factors be changed or controlled for the better? What problems are there with current recycling efforts?
If an organism does not ferment sugars to an acid or gas, but instead uses respiration only, explain why the tubes will slowly turn yellow over the course of 1-2 weeks.
With regard to bringing solutes into the cell across the plasma membrane, discuss the advantages and disadvantages of diffusion, facilitated diffusion, active transport, and endocytosis.
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