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12 Questions

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Understanding the Cell Theory

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Questions and Answers

What is the main contribution of Virchow to the Cell Theory?

The cell is the smallest unit of structure of all living things.

All cells arise from pre-existing cells. (correct)

The cell is the unit of function of all living things.

Cells can arise spontaneously.

What is the function of cells in the gut of a frog?

Absorbing water from the soil

Movement of the frog

Secreting enzymes for digestion (correct)

Photosynthesis

What is the process by which new cells are formed to replace dead ones?

Division of younger cells (correct)

Fusion of cells

Spontaneous generation

Division of older cells

What is the structural unit of a mango tree?

Cell Signup and view all the answers

What happens to cells continuously in the body of a frog or a mango tree?

They die and are replaced Signup and view all the answers

How did the life of a frog and a mango tree begin?

From a fertilized egg and a seed respectively Signup and view all the answers

What is the starting point of an organism like a mango tree or a frog?

A single cell in the ovary Signup and view all the answers

What is the primary reason for the small size of cells?

To allow for rapid communication between different regions Signup and view all the answers

What is an example of a few-celled organism?

Spirogyra Signup and view all the answers

How many cells are approximately present in an average-sized adult human?

37-2 trillion Signup and view all the answers

What is the benefit of cells having a large surface area to volume ratio?

It increases the efficiency of cellular functions Signup and view all the answers

What is the largest single cell in the living world today?

Ostrich egg Signup and view all the answers