Cells and Protists

What is the basic unit of life?

• cell

• atom

• molecule

• organism

Name the organelle known as the 'powerhouse' of the cell.

• endoplasmic reticulum

• nucleus

• mitochondria

• ribosomes

What is the function of the cell membrane?

• Regulates the cell's temperature

• Stores genetic information

• Controls the movement of substances in and out of the cell

• Provides energy to the cell

What is the difference between plant and animal cells?

• Plant cells have a nucleus, while animal cells do not.

• Plant cells have flagella for movement, while animal cells do not.

• Plant cells have a large central vacuole, while animal cells do not.

• Plant cells have a cell wall and chloroplasts, while animal cells do not.

Name the process by which cells divide to form new cells.

• Photosynthesis

• Respiration

• Mitosis or Meiosis

• Fermentation

What are protists?

• Eukaryotic organisms that are not plants, animals, or fungi

• Photosynthetic bacteria

• Multicellular organisms with a nucleus

• Single-celled animals

Give an example of a unicellular organism.

• Human

• Oak tree

• Elephant

• Bacteria

How do protists obtain their food?

• Through various methods such as photosynthesis, absorption, or ingestion.

• By absorbing nutrients from the soil

• By hunting and capturing other organisms

• Through breathing in oxygen

What are the characteristics of protists?

• Eukaryotic, mostly unicellular, can be autotrophic or heterotrophic

• Eukaryotic, always multicellular, only heterotrophic

• Prokaryotic, mostly unicellular, only autotrophic

• Prokaryotic, mostly multicellular, only autotrophic

Explain the role of protists in the ecosystem.

• Protists provide food for other organisms and act as decomposers.

• Protists only consume food and do not contribute to the ecosystem

• Protists are harmful to the ecosystem

• Protists are not involved in the ecosystem