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1. Which type of transport uses ATP directly ?A. Primary Active TransportB. Secondary Active Transport
2. Which type of transport functions to make a concentration gradient ?A. Primary Active TransportB. Secondary Active Transport
3. Which type of transport uses a concentration gradient to carry a second molecule against the concentration gradient ?A. Primary Active TransportB. Secondary Active Transport
4.What happens to the membrane protein when a phosphate molecule is added to it ?A. the protein takes on a new shapeB. the tertiary structure of the membrane protein changesC. the conformational structure of the membrane protein changesD. all of the above are stating the same thing (AB&C)
5. Which of the following best describes the membrane protein used in both primary and secondary active transport ?A. it is an integral membrane proteinB. it is a peripheral membrane proteinC. it is a transmembrane proteinD. it is a phospholipidsE. none of these are correct
Which of these would increase transpirational pull: thicker film of water on surface of mesophyll cells, higher relative humidity in air around leaf, lower rate of water evaporation from surface of mesophyll cells, larger diameter of stomatal pore..
Two strands of a DNA molecule are radio-labeled such that each strand can be uniquely identified. After three bouts of replication, how many new molecules of DNA are formed? How many strands of DNA are radio-labeled? Are both radio-labeled strands..
Phenol Red Broth is a differential test medium prepared as a base to which a carbohydrates is added. Included in the base medium are peptone and the pH indicator phenol red.
Joshua Ledergerg said, "Our only real competition for domination of planet remains the viruses." In what respect might you make a similar argument about insects.
Calculate change in Eo' and change in Go' for the light reactions in higher plants when the four-electron oxidation of H2O (to O2) is used to reduce NADP+ to NADPH.
Suppose that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM
Discuss the advantages and disadvantages of using transgenic bacteria, yeast and plants in biofuel production.
Compare the recipes of nutrient agar and HE agar. If an organism can grow on both media, on which would you expect it to grow better? Why?
Determine which of the following methods can be used to identify the mesodermal cells that give rise to the vertebrate limb?
Suppose if ICF (K+) ion concentration is 165 mM, what ECF (K+) concentration is required for the condition of no net passive flux of K+ across the membrane at Vm = - 66 mV?
give the main functions of microfilaments in the cell.
a certain type of crab tends to be larger in a local bay than in the open water outside the bay. What hypotheses might account for this difference? HOW would you go about testing these hypotheses?
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