cells Flashcards
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of cells.
True.
What structure controls the entry and exit of substances in a cell?
The cell membrane.
Fill in the blank: The _____ is the jelly-like substance inside the cell.
cytoplasm.
What organelle is responsible for energy production in the cell?
Mitochondria.
Which type of cell lacks a nucleus?
Prokaryotic cell.
What is the function of ribosomes?
Protein synthesis.
True or False: The endoplasmic reticulum is involved in lipid and protein synthesis.
True.
What organelle is known as the ‘powerhouse of the cell’?
Mitochondria.
Fill in the blank: The _____ is a network of protein filaments that helps the cell maintain its shape.
cytoskeleton.
What is the function of the Golgi apparatus?
Modifying, sorting, and packaging proteins.
Which organelle is involved in the digestion of waste materials?
Lysosomes.
True or False: Chloroplasts are found in animal cells.
False.
What is the primary function of the nucleus?
To store genetic information.
What type of cell contains chloroplasts?
Plant cell.
Fill in the blank: The _____ is a double membrane that surrounds the nucleus.
nuclear envelope.
What is the main component of the cell membrane?
Phospholipids.
True or False: The cell wall provides structural support in animal cells.
False.
What is the function of the vacuole in plant cells?
Storage of substances and maintaining turgor pressure.
Which structure is responsible for detoxifying harmful substances in the cell?
Smooth endoplasmic reticulum.
What is the role of the plasma membrane?
To regulate the movement of substances in and out of the cell.
Fill in the blank: The _____ is involved in the synthesis of ribosomal RNA.
nucleolus.
What is the difference between rough and smooth endoplasmic reticulum?
Rough ER has ribosomes on its surface; smooth ER does not.