Human Body Question Bank for Grade 5 Science

Which characteristic do single-celled organisms and multicellular organisms have in common?

• Both have cells with specialized functions for each life process.
• Both perform all life processes within one cell.
• Both have a way to get rid of waste materials.
• Both are able to make food from sunlight.

Which statement best describes a bacteria cell?

• It contains more than one cell.
• It is a complete organism.
• It is part of a larger organism.
• It contains different kids of cells.

Why do multicellular organisms need transport systems?

• Most have cells that are not able to exchange gases with the outside environment.
• Most have cells that are unable to grow and survive in their environment.
• Most have cells that need food from sources outside their environment.
• Most have cells that require more energy to survive than single-celled organisms

Which is an example of a single-celled organism?

• amoeba
• insect
• fish
• worm

All living things are made up of ________________.   

• cells
• tissues
• organisms
• systems

What is the function of the cell membrane?

• selectively allows substances in and out of the cell
• acts as the cell's control center
• carries out the chemical activities of the cell
• store food, water, or wastes

What part of the cell is the jelly-like substance that contains organelles?

• nucleus
• cell wall
• cell membrane
• cytoplasm

Which organelle acts like the brain of the cell?

• nucleus
• cell wall
• cell membrane
• cytoplasm

Why can single-cell organisms survive without the help of other cells?

• It has cells with specialized functions for each life process.

• It can perform all life processes within one cell.

• It has a way to get rid of waste materials.

• It is able to make food from sunlight.

How can a Paramecium carry out all of life’s functions?

• by having specialized cells

• by being larger that most organisms

• by being smaller that most organisms

• by performing all processes in one cell