Problem 6 - Objective Biology for NEET

Question

In which year Schwann studied different types of animal cells? (a) 1839 (b) 1739 (c) 1639 (d) 1938

Step-by-Step Solution

Answer

The correct answer is (a) 1839.

Step 1: Understanding the Question

This question is a direct enquiry into the timeline of cell biology. It specifically asked for the year when Theodor Schwann, a famous biologist, studied different types of animal cells.

Step 2: Fact Recall and Verification

You need to recall or verify from reliable sources about the timeline of Schwann’s discovery. It is known from history of cell biology that Theodor Schwann proposed his cell theory in 1839, in which he studied different types of animal cells.

Step 3: Selecting the Correct Option

Now that we know the correct year is 1839, we can confidently say that among the available options, (a) 1839 is the correct answer.

Key Concepts

History of Cell Biology

Cell biology—an important scientific domain—concerns itself with the study of cells, which are the basic units of life. The history of cell biology is marked by significant discoveries and advancements, tracing back to the 17th century when the first microscope was invented by Antonie van Leeuwenhoek. This pivotal invention allowed early scientists to observe cells for the first time.

Further progress was observed through the contribution of Robert Hooke, who, in 1665, coined the term 'cell' after observing the structure of cork under a microscope. However, it wasn't until the 19th century that major strides were made in understanding cell structure and function. An array of discoveries during this period set the groundwork for modern cell theory.

Animal Cell Study

Animal cell study has been integral to advancements in cell biology. It began in earnest when scientists understood that animals are composed of cells, similar yet distinct from those in plants. This led to meticulous examinations of a variety of animal cells and the realization of their complexity.

Scientists like Matthias Schleiden and Theodor Schwann began studying animal cells more systematically. Schwann, in particular, observed cells in animal tissues and recognized their significance in the overall function of organisms. This research culminated in the comprehensive formation of the cell theory, which radically transformed biological sciences, providing a clear explanation of the structure, function, and importance of cells in all living things.

Cell Theory Discovery Date

Cell theory is a fundamental principle that underpins much of modern biological science. The discovery date of cell theory can be pinpointed to a particular period in the 19th century. After extensive study and observation, Theodor Schwann proposed the cell theory in 1839. This theory, which was corroborated and refined by subsequent research, posits that all living organisms are composed of cells, and cells are the basic unit of structure and function in all organisms.

Together with Matthias Schleiden's work on plant cells, Schwann's research on animal cells in 1839 forged the path for this groundbreaking theory. Understanding the cell theory discovery date also helps students appreciate the enduring legacy of Theodor Schwann's contribution to this instrumental scientific advancement.