Identify Organelles in a Plant Cell Identify the organelles in the cell.

Label A
Label B
Label C
Label D
The organelles in a plant cell are labeled. Part A is a green, leaf-shaped structure. Part B is a large hollow structure. Part C is the outside lining of the cell. Part D is a network of hollow tubes, flattened sheets, and round sacs.

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.