Describe the signal molecule derivatives of arachidonic acid.
What will be an ideal response?
Leukotrienes are secreted by certain types of white blood cells and play a role in asthma and anaphylaxis. Prostanoids, including prostaglandins and thromboxanes, have a variety of target tissues and effects.
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In DNA replication,
A) 23 copies are made of each chromosome. B) one new copy is made of each chromosome, and the original chromosome remains intact. C) two new copies are made of each chromosome, and the original chromosome is destroyed. D) two copies are made of each chromosome, and each copy contains one of the DNA strands from the original chromosome. E) the chromosome is copied to RNA, which is then copied to DNA for a new chromosome.
A circumcision removes
A) the prepuce. B) the crura. C) the glans penis. D) the tunica albuginea.
__________ are not self-sustaining cellular entities -- they consist only of nucleic acids enclosed by a protein __________
Fill in the blank(s) with correct word
The brachial plexus supplies nerves that function to contract which of the following?
A. Intercostal muscles B. The diaphragm C. Muscles of the arm and forearm D. Muscles of the lower limb E. Abdominal muscles