Question

Prepare 6 ‘Fill in the Blanks’ from the topic ‘History of formulation of Cell theory’.

Answer 1

Question-1 Which of the following is NOT a premise of cell theory?
I. All cells arise from other cells.
II. All living cells require water for survival.
III. All living things are only composed of cells
Answer- II and III

Question-2 Cell theory states:
I. All living cells must have a cell wall.
II. All living cells require glucose for survival.
III. The basic unit of life is a cell.
Answer- III only

Question-3 What did Schleiden and Schwann both discover individually?
Answer- All living things are composed of one or more cells

Question-4 What did Louis Pasteur’s crooked neck flask experiment disprove?
Answer- Spontaneous generation is a method for the creation of new cells.

Question-5 In a histology lab a scientist observes the following features under the microscope. Which of these observations supports cell theory?
I. Cardiac cells are joined by gap junctions and contain three nuclei.
II. Mature platelet cells do not contain a nucleus, but do contain mitochondria.
III. Spermatogonia undergoing mitosis.
IV. The bulk of tissue samples from endocrine glands contain cells as their main building blocks.
Answer- III and IV

Question-6 Which is a potential exception to cell theory?
Answer- Mitochondria