The cell membrane allows substances to enter and leave the cell and gives the cell structure.
Atoms gain electrons to form anions.
Atoms lose electrons to form cations.
Back in middle school, my chemistry teacher taught me a good way to remember whether an ion was a cation or an anion. When an atom loses an electron, it becomes positive, and when an atom gains an electron, it becomes negative.
Cation sort of sounds like “cat,” which is positive (Yay! Cats!).
Anions, on the other hand, sounds like “onion,” which is negative (Ew! Onions!).
There’s other ways of memorizing it, but this way was the easiest for me.
-T.B.
I believe the answer is proteins. hope this helped! :)
Answer:
D.) often exists as a single-stranded molecule
Explanation:
One notable difference between DNA and RNA is that DNA consists of 2 nucleotide strands and RNA consists of 1.
Answer:
An object can convert it's potential energy into kinetic energy. For example see the below figure, where potential energy of water has been converted into kinetic energy. A moving body can transfer some of its energy to set another body into motion. ... So, object what you are speaking about is nothing but energy (mass).
Explanation:
