Glycogen is to animal cells as ________ is to plant cells.
A. starch
B. sugar
C. protein
D. lipid
E. cellulose
Answer: A
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Rods and cones synapse with:
A. the optic neuron B. bipolar cells C. ganglion cells D. amacrine cells
Toll-like receptors (TLRs) bind molecules on pathogens. Why is this helpful to the immune response?
A. It provides a highly specific response to very small and highly unique areas on an individual pathogenic microbe, providing the most specific and selective response possible. B. It provides a general response to broad categories of molecules/cells that should NOT be in our system, as we don't have these molecules on our own cells. C. These secreted molecules help bind pathogens and then direct them to receptors on the immune system cells that are best capable of eliminating them from our systems. TLRs are delivery mechanisms for the immune responses. D. TLRs are capable of directly lysing (destroying) the microbes, helping our immune responses by eliminating pathogens.
Which of the following does clay provide to
soils that enhance plant growth?
a. clay holds onto positively charged mineral ions needed for plant growth b. clay provides aeration to the soil providing oxygen for root growth c. clay allows roots to more easily penetrate the soil d. clay holds onto negatively charged mineral ions needed for plant growth e. clay provides to soil all of these things that enhance plant growth
A nucleosome is a structure associated with the nuclear membrane. It helps maintain a stable relationship between the extracellular matrix and the membrane itself
Indicate whether the statement is true or false