Cell the unit of life Flashcards
(28 cards)
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of one or more cells.
True.
Fill in the blank: The cell theory states that all living things are composed of ______.
cells.
What are the two main types of cells?
Prokaryotic and eukaryotic cells.
Which type of cell lacks a nucleus?
Prokaryotic cells.
True or False: Eukaryotic cells are generally larger and more complex than prokaryotic cells.
True.
What is the function of the cell membrane?
To protect the cell and regulate what enters and exits.
What organelle is known as the powerhouse of the cell?
Mitochondria.
Fill in the blank: The jelly-like substance inside the cell is called ______.
cytoplasm.
What is the role of ribosomes in a cell?
To synthesize proteins.
Which organelle is responsible for photosynthesis in plant cells?
Chloroplasts.
What structure is found in plant cells but not in animal cells?
Cell wall.
True or False: The nucleus contains the cell’s genetic material.
True.
What is the function of the endoplasmic reticulum?
To synthesize proteins and lipids.
What is the function of the Golgi apparatus?
To modify, sort, and package proteins and lipids.
Fill in the blank: Lysosomes contain ______ that break down waste materials.
enzymes.
What is the primary function of the cell’s cytoskeleton?
To provide structural support and shape to the cell.
Multiple Choice: Which of the following is NOT a function of the cell membrane? A) Protection B) Energy production C) Regulation of entry and exit D) Communication
B) Energy production.
What is the term for the process by which cells divide?
Cell division.
What is the name of the process by which a cell engulfs material?
Endocytosis.
True or False: All cells have the same structure and function.
False.
What type of cell is a bacterium classified as?
Prokaryotic cell.
Fill in the blank: The ______ is the control center of the cell.
nucleus.
What is the primary component of the cell membrane?
Phospholipids.
