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Q1. An experiment is planned to study mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. Their sucrose uptake correlates with a rise in the solution's pH. This rise is proportional to the starting concentration of sucrose in the solution. A metabolic poison is that blocks the capability of cells to regenerate ATP is found to inhibit the pH changes in the solution. Propose a hypothesis accounting for these results. Suggest an experiment to test it.
Q2. Carotenoids are frequently found in foods that are considered to have antioxidant properties in human nutrition. What related function do they have in plants?
The Neurospora cross was made between a strains that carried mating type A and mutant allele arg-1(arg) and another strain the carried mating-type a and the wild type arg-1 (+) gene. Four hundred linear octads were isolated and they fell into the 7 c..
What type of electrode would they need to use (express material and design)? Provide a simplified schematic (circuit model of the electrode) described in the notes. Also discuss at least two benefits of an exoskeleton as well as how arthropod grows ..
A microscope has a field diameter of 2,000 microns under a total low power magnification of 100 X. This microscope has a 10X power ocular. Given this information, reply the following questions that appear below.
White tigers are indicated with unshaded symbols. (As you can see, there was considerable inbreeding in this lineage. For instance, the white tiger Mohan was mated with his daughter). In answering the questions, assume that hite.
What are the causes of gastroesophageal reflux disease (GERD)? What is the typical prognosis for GERD and how is it treated.
They have one child. What is the possibility that their child will have the disease. 52 dark moths and 21 light moths were at random recaptured. Which would be the most reasonable assumption.
Do you really think the age of the man is main in determining the chance of chromosomal abnormalities? Why or why not with appropriate reasons. Describe a single meiosis event.
Two linked genes, S and T, are separated by 8 cM. Peter, who has the genotype ST/st, marries Oliviam who is st/st. peter's father was ST/ST. what is the probability that peter and olivia's first child will be St/st? What is the possibility that their..
What was this experiment and why was it so significant? Diagram and briefly describe the steps of the process. How and why has recombinant DNA technology impacted biotechnology.
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. While oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops.
How will each of these components be digested? Where within the digestive system will they be digested? Are any accessory organs involved.
Which of the next statements is untrue of the light reaction in photosynthesis.
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