The flattened stacks of saclike structures in the chloroplast are called grana,Each sac is known as( )
A: a lumen
B: a granum
C: a membrane
D: a thylakoid
E: a photoreactive cente
A: a lumen
B: a granum
C: a membrane
D: a thylakoid
E: a photoreactive cente
举一反三
- The chloroplast<br/>internal membrane is organized into flattened membranous sacs called<br/>_________; they, in turn, are arranged in orderly stacks called<br/>_______ that contain energy-transducing machinery. ( ) A: thylakoids, grana B: grana, thylakoids C: thylakoids, stroma thylakoids D: thylakoids, grana thylakoids
- The membranous sac enclosing the heart is called _____
- A wall dividing two cavities, such as the chambers of the heart, it is called: A: septum B: membrane C: Endosteum D: tunic
- The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.
- I felt as if we ______ each other for years. A: had known B: knew C: have known D: would have known