Living organisms are made of one or more cells.
70 trillion (70,000,000,000,000) cells.
Anabaena (Bacteria)
D. 10%
To contain cell contents.
Approximately 37.2 trillion cells
Cells are the basic building blocks of all living organisms.
Its flexibility.
Multicellular
Chlamydomonas (protist).
Due to the surface area to volume problem.
Unicellular
Approximately 200 different cell types
Most cells are small to maintain a high surface area to volume ratio, which is essential for efficient nutrient uptake and waste removal.
B. 200
The human body is composed of approximately 37.2 trillion cells.
Plasma membrane.
By allowing specific molecules to enter or leave the cell.
The cell.
To maintain a high surface area to volume ratio, which is essential for efficient nutrient uptake and waste removal
Cells are surrounded by a plasma membrane, which regulates the movement of substances in and out of the cell.
As cells grow, their volume increases faster than their surface area, making it difficult to efficiently exchange materials with their environment.
