Is secondary active transport considered as passive transport?

as sodium on one side has a higher concentration, and travels back down to the lower concentration and brings glucose with it too.

so it is from high -> low, then is it kind of like passive transport?

Based from the given scenario, I can conclude that secondary active transport is indeed considered as a passive transport because the sodium-potassium pump utilizes energy and secondary transport will rely on this. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.