Explain what occurs when a plant exhibits heliotropism. What will be an ideal response?
ANSWER: Leaves or flowers of some plants change position in response to the changing angle of the
sun throughout the day, a response called heliotropism (from Greek helios, sun). The
mechanism that drives heliotropism is not understood, but it may be similar to phototropism
because it has been observed to coincide with differential elongation of cells in stems, and it
also occurs in response to blue light.
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You have identified an enzyme that appears to be involved in the addition of palmityl group (a fatty acid) to certain proteins. Knowing that palmitoylated proteins are usually targeted for delivery to the plasma membrane, in which organelles might this enzyme be expressed?
A. Golgi apparatus and nucleus B. Golgi apparatus and endoplamic reticulum C. Endoplamic reticulum and ribosomes D. Endoplamic reticulum and nucleus Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about protein transport to the plasma membrane? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What is the primary characteristic that groups phyla within the Ecdysozoa?
A. They all have tropchophore larvae. B. They shed their exoskeletons. C. They all have spiral cleavage. D. They all have segmentation.
The process that uses short, synthetic, double-stranded RNAs to intentionally bind mRNAs thereby diminishing gene expression is called ________.
A) CRISPR technology B) recombination C) molecular pharming D) antisense technology E) bioremediation
If a lump on a breast disappears following needle aspiration, it was most likely a _____.
A. fibroadenoma B. cyst C. gland D. malignant tumor