DNA and RNA are made up of monomers called nucleotides. - DNA and RNA both have 3 nitrogenous bases: Adenine, Cytosine and Guanine. - DNA and RNA both have a phosphate groups in their nucleotides. Sometimes called phosphoric acid
That will be once every year
Answer:
B is the correct option because, in a cell, <u>only mitochondria</u> generate and provide <u>energy</u> for muscle movement.
Explanation:
Mitochondria are known as a powerhouse of the cell because they perform <u>cellular respiration</u> and <u>generate energy as an ATP</u> (Adenosine Triphosphate) molecule. <u>Muscle cells function in movement and burn more energy that's why they have many mitochondria to fulfill energy demands.</u>
On the other hand, options <u>A, C, and D are not correct options </u>because mitochondria do not perform other services such as acting as protein factories, linker cells, nutrients transportation. The activities are performed by other organelles.
The correct answer is D. Cell Membrane because the cell membrane contains two phospholipid layers with the protein molecules attached to them throughout.
Hope I helped! :)
All matter is made up of tiny particles called atoms. <span>They are the smallest unit of matter that defines the chemical elements and their isotopes. Every substance, be it solid, liquid, or gas is made up of </span>atoms<span>. </span>