Cells

Which tool is best used to observe cells and their structure?

• binoculars
• microscopes
• telescopes
• the naked eye

What is the function of the cell membrane?

• to let certain 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 memebrane
• cytoplasm

Which of the following pairs correctly matches the plant cell part with its function?

• cell membrane: gives rigid structure to the plant cell
• chloroplasts: contain most of the cell's internal parts
• cell wall: produces energy for the cell
• nucleus: control center of the cell

Which part of the cell is the command center, contains chromosomes for reproduction, and directs all cell activities?

• membrane
• nucleus
• cytoplasm
• mitochondria

How are the cells in multi-celled organisms different than single-celled organisms?

• They perform special functions.
• They form tissues, organs, and organ systems.
• They come in many different types.
• All of the above.

What is the function of a chloroplast?

• Use the energy of sunlight to perform a process called photosynthesis
• Control all cell functions
• Allow materials in and out of the cell
• Assist in cell division along with chromosomes
  

Which cellular structure would be found only in plant cells?

• mitochondria 
• nucleus 
• chloroplast
• A.       endoplasmic reticulum
  

Which cellular structure would be found only in plant cells?

• mitochondria 
• nucleus 
• chloroplast
• A.  endoplasmic reticulum
  

A paramecium is a one-celled animal. Which of the following MUST be true about the paramecium?

• The one cell does everything it needs to live.
• It can only live inside the cells of other living things.
• It is the smallest living thing
• It causes dangerous diseases