Select the true statements about the electron transport chain. a. The products of the electron transport chain are H 2 O and either NAD + or FAD .
b. In the electron transport chain, a series of reactions moves electrons through carriers.
c. Coenzyme A is a component of the electron transport chain.
d. Coenzyme Q and cytochrome c are components of the electron transport chain.
e. The electron transport chain is an anaerobic process.

b. In the electron transport chain, a series of reactions moves electrons through carriers.

d. Coenzyme Q and cytochrome c are components of the electron transport chain.

Explanation:

Electron transport chain, commonly known as ETC, is the third process that occurs in aerobic (oxygen needed) cellular respiration. It is the process whereby electrons move across molecules in a series of redox (reduction & oxidation) reactions.

The aim of the ETC is to create a proton pump that will generate power for the synthesis of ATP, which alongside water, is the end product of the process. The Electron transport chain includes protein complexes and electron carrier molecules. Coenzyme Q, also known as Ubiquinone, and Cytochrome C as mentioned in the options are part of the complexes that makes up the transport chain.

what are the choices?

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.