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Q1. Two intracellular molecules X and Y are both normally synthesized at a constant rate of 1000 molecules per second per cell. Molecules X is broken down slowly: each molecule of X survives on average for 100 seconds, Molecule Y is broken down 10 times faster, each molecule of Y services on average for 10 seconds.
Compute how many molecule of X and Y the cell contains at any time.
Q2. The breakdown of sucrose into the simple sugars fructose and glucose is an exergonic reaction. Sucrose is quite stable, and left on its own at room or even human body temperature, breakdown occurs very slowly. The enzyme sucrase catalyzes conversion of sucrose to glucose and fructose, increasing the reaction rate as a minimum one-million-fold. How does the net amount of energy released during the breakdown of sucrose compare between spontaneous reactions and catalyzed by sucrase?
The oldest rocks on Earth date from about 4.2 billion years ago. What does this propose about the interval between 4.6 billion years ago, while the Earth started to form, and 4.2 billion years ago.
Describe how the genetic material is organized in this virus. Monarch butterfly populations are found east and west of the Rocky Mountains. How could DNA fingerprinting technology be used to start that they constitute one breeding population or two s..
A mammal uses only 1 to 2 percent of its energy in ventilation while a fish must spend about 15 percent of its energy to move water over its gills. Describe this huge difference in their efforts to collect oxygen.
X-linked Recessive: colour-blindness, malepatterned baldness, hemophilia Color-blindness is caused by a recessive gene (b) on X chromosome. Predict phenotypes for children of a female carrier with a normal male. A genetic wasteland.
With these anatomical features in mind, do research to discover an angiosperm species that has structural modifications to leaves, stems, roots, or flowers that result in adaptive functions. For in case, a California Barrel Cactus has spines in place..
Terry catches a ray-finned fish from the ocean and notices that, attached to its flank, there is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker and two small ey..
Frogs are extremely sensitive to acid rain. How might this information be used to investigate your observation about the trees dying in the forest.
Eukaryotic cells are more complex than prokaryotic cells. Explain their differences, functions and the composition of each including how genetic material is replicated.
The bacteria are allowed to grow overnight and are streaked on a plate using the technique that produces isolated colonies that are clones of the original. Samples of these colonies are then grown in four different media: nutrient broth plus ampicill..
Why is social clock an important consideration when understanding development. It is a useful tool for making comparisons across different generations to see if the hypothesized developmental course is valid.
A beaker with 100 of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100. A student adds 6.60 of a 0.350 solution to the beaker. How much will the pH change? The of a..
Explain the cells you were able to see in the blood smear. Are they different than bacterial cells you have observed.What is the reason of immersion oil?
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