#Question id: 10804
#Unit 6. System Physiology – Plant
Major types of alkaloids, their amino acid precursors, and well-known examples of each type;
|
Alkaloid class |
Biosynthetic precursor |
Examples |
|
A. Pyrrolidine |
i. Lysine |
a. Coniine |
|
B. Tropane |
ii. Ornithine |
b. Retrorsine |
|
C. Piperidine |
|
c. Lupinine |
|
D. Pyrrolizidine |
|
d. Nicotine |
|
E. Quinolizidine |
|
e. Atropine and Cocaine |
Which of the following combination from the given table is correct?
#Question id: 28540
#Unit 5. Developmental Biology
WUS gene which involve to increase the number of stem cells, that basically promotes the transcription of___
#Question id: 28814
#Unit 2. Cellular Organization
Which of the following statements about these given graph is correct?
a)Length of the neck domain determines the processivity of motor protein
b)myosin step size and force with actin held by optical traps
c)It represents the steps of head domain determine the rate of movement by binding with actin filaments
d)rate at which these myosins moved on actin filaments was determined
#Question id: 1515
#Unit 4. Cell Communication and Cell Signaling
Following statements are regarding to metastasis (using breast carcinoma cells as an example).
A. Cancer cells leave the main tumor and attack the basement membrane, using extracellular matrix (ECM) fibers to reach the blood vessels.
B. The cancer cells can be attracted by signals such as epidermal growth factor (EGF), which can be secreted by macrophages.
C. At the blood vessels they penetrate the layer of endothelial cells that forms the vessel walls and enter the bloodstream.
D. Carcinoma cells penetrate the extracellular matrix and blood vessel wall by extending “invadopodia,” which produce matrix metalloproteases and other proteases to open up a path.
Which of the following statement shows process of angiogenesis?
#Question id: 28709
#Unit 2. Cellular Organization
The first vesicle trafficking step in the secretory pathway, is mediated by__