Answer:
Cell theory refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the mid 17th century was made possible by advances in microscopy. This theory is one of the foundations of biology.
<span>1.Your respiratory system is the system in your body that is responsible for breathing. TRUE
</span><span>2.The lungs are made up of thick fibrous tissue. FALSE
</span><span>3. Internal respiration takes place in the alveoli. FALSE
</span>4.<span>The alveoli are located at the end of the bronchi. FALSE
</span><span>5. The hemoglobin in blood combines with oxygen when the blood flows through areas where oxygen concentration is high. TRUE
</span>6. <span>Marijuana does not contain carcinogens. FALSE
</span><span>7. It is more difficult to stop smoking cigarettes if you use marijuana regularly. TRUE
</span><span>8. It takes as long as 3 days for the body to eliminate the chemical effect that marijuana has on the body. FALSE
9. The drug THC acts as a stimulant and can improve strength, balance, and coordination. FALSE
10. People who quit smoking usually cannot reverse the adverse affects caused by cigarettes.
FALSE</span>
Answer:
DNA
Explanation:
DNA
Avery is best known for his 1944 discovery that DNA is the material of which genes and chromosomes are made.
Chymotrypsin is permanently inhibited by TPCK. Additionally inhibits certain cysteine proteases, including ficin, papain, caspase, and bromelain. For the chemical labeling of active histidine in enzyme analysis, TPCK is chosen. Because the enzyme has a preference for aromatic amino acid residues at the active site, the phenylalanine moiety is attached to the enzyme (as in chymotrypsin, in which it binds to the Histidine-57 residue in the active site).
[1] Neither zymogens nor trypsin are inhibited by it.
In the crystal structure of the complex solved in 2010, TPCK is seen covalently bonded in the active site of Caspase 3.
[2] With the chlorine removed, the chloromethyl group interacts with the cysteine in the active site to form a covalent connection.
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Answer:
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
Explanation:
