This had to be right if you want brainliest plus 30 points

Cristae is the inner membrane folds of a mitochondrion

2. diffusion is the movement of a higher concentration to a lower concentration without input of energy

3. semipermeable is the membrane that lets in some molecules , but not others

4. carbon fixation is the incorporation of the carbon in carbon iv oxide into organic compounds of the Calvin cycle

5. fermentation is the breakdown of glucose in the absense of oxygen usin glycolysis

the answers are a and c

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called