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Unicellular vs Multicellular Organisms

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Questions and Answers

What defines growth in unicellular organisms?

The single cell gets bigger in size. (correct)

The number of cells increases through division.

The organism absorbs nutrients from surroundings.

Cells specialize into different types.

How does growth happen in multicellular organisms?

By the number of cells increasing due to cell division. (correct)

Via mineral absorption from the soil.

By the single cell becoming larger.

Through the process of photosynthesis.

Which statement is true regarding the growth of bacteria?

Bacteria remain the same size throughout their life.

Bacteria grow by increasing the size of their single cell. (correct)

Bacteria grow by splitting into multiple cells.

Bacteria require energy to grow through photosynthesis.

What is a difference between unicellular and multicellular growth?

<p>Multicellular organisms grow by creating more cells.</p> Signup and view all the answers

What happens during cell division in multicellular organisms?

<p>New cells are created to increase the organism's size.</p> Signup and view all the answers

Study Notes

Unicellular Organisms

Unicellular organisms consist of a single cell.
Growth involves the increase in size of this single cell.
Example: Bacteria grow by enlarging their single cell until division.

Multicellular Organisms

Multicellular organisms are composed of many cells.
Growth occurs due to an increase in the number of cells through cell division (mitosis).
Each cell divides to form more cells, leading to organismal growth.
Example: In humans, cell division enables growth from a baby to an adult.

Growth Differences

Unicellular: Growth is the enlargement of the single cell.
Multicellular: Growth involves the generation of more cells to make the organism larger.

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Description

This quiz explores the differences between unicellular and multicellular organisms, focusing on their growth processes. You will learn how unicellular organisms grow by enlarging their single cell, while multicellular organisms grow through cell division. Test your understanding of these fundamental biological concepts.