If the tight junctions in the intestine were disrupted _____
A. intestinal cells could not attach to the extracellular matrix.
B. intestinal cells could not attach to integral membrane proteins.
C. small molecules would not be exchanged between neighboring intestinal cells.
D. bacteria could move from the intestines to the bloodstream causing an infection.
E. small molecules would not be able to move into cells lining the intestine.
D. bacteria could move from the intestines to the bloodstream causing an infection.
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The template strand of a DNA segment that codes for mRNA has the sequence: ATGCGT. Which tRNA anticodons would pair with the mRNA that is coded for by this sequence?
A. AUG CGU. B. ATG CGT. C. UAG CGU. D. UAC GCA.
Cephalopods are the only mollusks that have a closed circulatory system
Indicate whether the statement is true or false
As with people, cancer is much more common among dogs that are obese and have low
activity levels. Obesity and activity level are thus considered __________ for cancer in dogs.
a. carcinogens b. risk factors c. indicators d. oncogenes
In addition to a plasma membrane, plant cells have ______________ which protect and support the plant cell.
Fill in the blank(s) with correct word