Levels of organisation an organism

The video explores the levels of organization in organisms, from cells to organ systems. It explains how unicellular organisms perform all life functions within a single cell, while multicellular organisms have complex structures with specialized cells forming tissues, organs, and organ systems. The video highlights the differences between unicellular and multicellular organisms, the role of organelles within cells, and the importance of tissues and organs in maintaining life processes. It concludes with a discussion on how organ systems work together to keep multicellular organisms functioning.

What is the primary difference between unicellular and multicellular organisms?

• Unicellular organisms have multiple cells.

• Unicellular organisms perform all life functions in one cell.

• Multicellular organisms are not made up of cells.

• Multicellular organisms perform all life functions in one cell.

Which of the following is a function of mitochondria in animal cells?

• Photosynthesis

• Energy production

• Cell division

• Protein synthesis

What do groups of cells form when they come together?

• Organ systems

• Tissues

• Organs

• Organelles

Which of the following is NOT a vital organ in mammals?

• Xylem

• Brain

• Heart

• Lungs

How many organ systems are present in the human body?

• 5

• 7

• 11

• 15