Looking Inside Cells

This controls which substances pass into and out of a cell. It is called...

• Cell membrane

• Nucleus

• Cytoplasm

• Ribosome

What is the difference between unicellular and multicellular organisms?

• Unicellular organisms consist of multiple cells, while multicellular organisms consist of a single cell.

• Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells.

• Unicellular organisms can perform photosynthesis, while multicellular organisms cannot.

• Unicellular organisms are always larger than multicellular organisms.

Plants and animals (including you) are...

• Unicellular: Unicellular organisms are made up of a single cell.

• Multicellular: Multicellular organisms are made up of many cells that work together.

• Acellular: Acellular organisms do not have any cells.

• Prokaryotic: Prokaryotic organisms have no nucleus in their cells.

What is the role of the endoplasmic reticulum?

• Involved in the synthesis of proteins and lipids, and transports materials within the cell.

• Responsible for energy production in the cell.

• Involved in the breakdown of waste materials in the cell.

• Acts as the control center of the cell.

What is the role of the cell wall in plant cells?

• The cell wall provides structure and protection to plant cells, helping them maintain their shape.

• The cell wall allows for the exchange of gases between the plant and its environment.

• The cell wall stores nutrients and energy for the plant cell.

• The cell wall aids in the movement of water and minerals into the plant cell.

What is the function of the nucleolus?

• It produces ATP for energy.

• It synthesizes proteins for the cell.

• It produces ribosomes.

• It stores genetic information.

What is the purpose of the cell membrane's selective permeability?

• It allows the cell to control the movement of substances in and out, maintaining homeostasis.

• It provides structural support to the cell.

• It facilitates cell division and replication.

• It acts as a barrier to prevent all substances from entering the cell.

This thick, clear, gel-like fluid fills the region between the cell membrane and the nucleus. What is it called?

• Cytoplasm

• Nucleus

• Mitochondria

• Endoplasmic Reticulum

Small, grain-shaped organelles that produce proteins are called what?

• Mitochondria

• Ribosomes

• Lysosomes

• Endoplasmic Reticulum

What is chromatin?

• A complex of RNA and proteins found in the cytoplasm.

• A complex of DNA and proteins found in the nucleus that condenses to form chromosomes during cell division.

• A type of lipid that forms the cell membrane.

• A structure that synthesizes proteins in the cell.