This photo shows the submicroscopic structure of biological cells. According to the picture, the answer is: (1) Cell is a living system, and the boundary of this system is _ _ _ _ _.

(1) This cell is a living system, and the boundary of this system is two cell membranes.

(2) If cells are put into 30% sucrose solution, and the solution concentration is higher than 1 1 cytosol, the cells will lose water and the cell wall will be separated from 1 protoplasm layer.

(3) Under illumination, 14C? After the labeled CO2 enters the cell, it first participates in photosynthesis, so it will enter chloroplast 7. Chloroplast (CH2O) produced by photosynthesis is first decomposed into pyruvate in the cytoplasm matrix, and then pyruvate is completely oxidized and decomposed into mitochondria 6 to release energy, which provides energy for cell life activities.

(4) There are 6 mitochondria and 7 chloroplasts in the double-membrane organelle.

(5) If the cell is a meristem cell of a plant, it should not contain 7 chloroplasts and 1 1 vacuole.

(6) During mitosis, 10 nuclear membrane and 12 nucleoli will gradually disappear in the prophase of cell division.

(7) ⑤ The structure of increasing membrane area in mitochondria is that the inner membrane processes are folded to form ridges, and ⑤ the structure of increasing membrane area in chloroplasts is chloroplast thylakoid membrane accumulation.

So the answer is:

( 1)2? cell membrane

(2) 1? protoplast laye

(3)7? Chloroplast 6 mitochondria

(4)6.7

(5)7, 1 1?

(6) 10, 12

(7) The intima folds inward to form crista chloroplast thylakoid membrane stack.