Cell Theory
What are the three main principles of cell theory?
All living things are made of cells, cells are the basic unit of life, and all cells come from pre-existing cells.
What is the simplest level of organization in multicellular organisms?
Cells
Which organelle is known as the powerhouse of the cell?
Mitochondria
What pigment gives plants their green color?
Chlorophyll.
What is the main difference between plant and animal cells?
Animal cells do not have a cell wall or chloroplasts.
Name one of the two scientists credited with the formulation of the cell theory?
Matthias Schleiden or Theodor Schwann.
What is the next level of organization after cells?
Tissues
What is the function of the ribosome?
Synthesize Proteins
What is the primary function of the vacuole in plant cells?
To store nutrients and waste products.
Which organelle is responsible for controlling cell activities?
Nucleus.
What role did Robert Hooke play in the development of cell theory?
He was the first to use the term "cell" when observing cork under a microscope.
What type of tissue is responsible for movement in the body?
Muscle Tissues
Which organelle is responsible for packaging and distributing proteins?
Golgi Body
How do plant cells differ from animal cells in terms of shape?
Plant cells have a rigid, rectangular shape due to the cell wall.
What type of cellular division do animal cells undergo for growth and repair?
Mitosis.
How does cell theory apply to multicellular organisms?
Multicellular organisms are composed of many cells that work together to perform functions.
Name the level of organization that includes multiple types of tissues working together.
Organ
What structure protects and maintains the shape of plant cells?
Cell Wall
What is one unique feature of plant cells that animal cells do not have?
Chloroplast or Cell Wall
How do lysosomes function within animal cells?
They digest waste materials and cellular debris.
Why is the phrase "all cells arise from pre-existing cells" important in biology?
It emphasizes the continuity of life and the process of cell division.
What is the highest level of organization in multicellular organisms?
Organism.
Which organelle is involved in photosynthesis?
Chloroplasts
What is the process by which plants use the sun's energy to turn water and CO2 into Glucose and Oxygen.
Photosynthesis
What is the role of the cell membrane in animal cells?
To regulate what enters and exits the cell and to maintain homeostasis.