#Question id: 4599
#Unit 11. Evolution and Behavior
Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.
#Question id: 6968
#Unit 5. Developmental Biology
In Xenopus, the mesoderm moves in through the blastopore by rolling around the dorsal lip in a process called:
#Question id: 1381
#Unit 4. Cell Communication and Cell Signaling
Match each definition with given terms
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1. Large family of structurally related, secreted, dimeric proteins that act as hormones and local mediators to control a wide range of biological functions in all animals. |
A. Rho |
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2. Cell-surface receptor in which the cytoplasmic domain either has enzymatic activity itself or is associated with an intracellular enzyme. |
B. TOR pathway |
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3. A crucial signaling protein in the PI-3-kinase–Akt signaling pathway, so named because it is the target of rapamycin. |
C. Enzyme-coupled receptor |
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4. A kinase that is involved in intracellular signaling pathways activated by cell-surface receptors and that phosphorylates inositol phospholipids at the 3 position of the inositol ring. |
D. Phosphoinositide 3-kinase |
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5. A group of monomeric GTPases that regulate both the actin and microtubule cytoskeletons. |
E. (TGFβ) superfamily |
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6. Cytoplasmic tyrosine kinase present at cell–matrix junctions in association with the cytoplasmic tails of integrins. |
F. Focal Adhesion Kinase |
#Question id: 7755
#Unit 5. Developmental Biology
#Question id: 10222
#Unit 6. System Physiology – Plant
Energy partitioning between two photosystem protects them from quick dessipation or quick inactivation this energy partitioning take place by a protein kinase that can phosphorylate a specific threonine residue on the surface of LHCII, what is the role of LHCII in phosphorylated and non-phosphorylated state?
a.) LHCII in phosphorylated state migrate towards the PSI in the unstacked region and delivers energy to the PSI
b.) LHCII in nonphosphorylated state moves back to the grana and delivers energy to the PSII
c.) LHCII in phosphorylated state migrate towards the PSII in the stacked region and delivers energy to the PSI
d.) LHCII in nonphosphorylated state moves towards the stroma lamellae unstacked region and delivers energy to the PSII
Which of the following combination is CORRECT?