Question

PLEASE HELP I WILL GIVE MEDALS!! (AT LEAST 4 SENTENCES)!!
Contrast Mitochondria and Chloroplasts

Answer 1

Last Question from you i promise! @kitties_rules

Answer 2

similarities:

-both are circular or ovoid in shape

-both are surrounded by a double membrane (double phospholipid bilayers)

-both have an intermembrane space

-both are involved in ATP production via a proton gradient (across the thylakoid membrane of chloroplast, across the cristae for mitochondria)

-both have ATP-synthatases appearing as stalked particles (on the thylakoid membrane of chloroplast, on the cristae of mitochondria)

-both have electron transport chains (on the thylakoid membrane of chloroplast, on the cristae of mitochondria)

-both contain 70S ribosomes

differences:

-in size: mitocondria are 1-10micrometers in diameter. chloroplasts are a little larger : 2-10 micrometers in diameter.

-in function: mitochondria generate ATP from glucose during cellular respiration. chloroplasts generate ATP from light (via process of photosnthesis) to produce glucose for storage.

-in structure: cristae of the mitochondria are continuous with the inner membrane. thylakoids in the chloroplasts are discontinuous with the inner membrane, i.e. thylakoids and inner membrane are separate entities.

-in naming: the space within the mitochondria, equivalent to the cytosol of the cell, is called the mitochondrial matrix. the same space within the chloroplasts is called the stroma. the space within the thylakoids is called the thylakoid space

-there are starch grains in the stroma of chloroplasts but none in mitochondria

-chloroplasts only found in plant cells, mitochondria found in plants, animals, and unicellular organisms

Answer 3

Thank you! :)