“The extracellular matrix does all of the following EXCEPT”
A. provide an important source of energy for the organism
B. provide strength
C. contribute to cell signaling
D. provide structural support
E. helps to organize cells
A. provide an important source of energy for the organism
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Which element is being studied for use in fuel cells to power cars?
a. iron b. hydrogen c. oxygen d. nitrogen e. uranium
In order to examine cells which are smaller than can be detected by the human senses what needs to be used?
a. Patience b. Hypotheses c. Technology d. A cell trap e. None of the above
Answer the following questions in reference to the five divisions of vascular plants listed below.
A. The giant club mosses of the Carboniferous period were members of this group. B. In members of this group the gametophyte is the dominant generation. C. Orchids are members of this division. D. Members of this group are heterosporous with well-developed seed and pollen-bearing cones. E. Members of this group include kidney beans, apples, and almonds.
Using genetic engineering techniques, you have created a set of proteins that contain two (and only two) conflicting signal sequences that specify different compartments. Predict which signal would win out for the following combinations
Explain your answers. A. Signals for import into the nucleus and import into the ER. B. Signals for export from the nucleus and import into the mitochondria. C. Signals for import into mitochondria and retention in the ER.