Cells
True or False.
All prokaryotic cells are unicellular.
True.
Which organelle is responsible for producing ATP energy?
Mitochondria
What is the difference between passive and active transport?
Passive transport does not require energy while active transport does require energy.
Passive transport moves substances along (with) the concentration gradient while active transport moves substance against the concentration gradient.
Which of the following statements about eukaryotic cells is true?
A) They are always unicellular.
B) They lack membrane-bound organelles.
C) They include organisms such as plants and animals.
D) They do not have a nucleus.
C) They include organisms such as plants and animals.
What is the primary difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a nucleus and prokaryotic cells do not have a nucleus.
True or False
Chloroplasts are found in ALL eukaryotic cells.
False.
Chloroplast are only found in plant cells.
What is the name of the energy used in active transport.
ATP energy
What process describes the movement of water across a selectively permeable membrane?
Osmosis
What is the role of ribosomes in the cell?
They make proteins.
What is the job of the cell membrane?
To control what enters and exits the cell.
Passive transport continues until _______________ is reached.
Equilibrium
What organelle converts sunlight into energy in plant cells?
Chloroplast
What are the THREE organelles found in ALL cells?
Ribosomes, cytoplasm, and cell membrane.
What is the primary function of lysosomes in a cell?
To break down waste and recycle materials.
The cell membrane is described as being selectively permeable. What does this mean?
It allows certain substances to pass through more easily.
Which type of endocytosis involves the uptake of specific materials?
Receptor-mediated endocytosis
According to the endosymbiotic theory, how did eukaryotic cells evolve?
They developed from prokaryotic cells that engulfed other prokaryotic cells.
Why is it important to learn about cells?
Understanding cells helps us to appreciate the complexity of living organisms.
Understanding cell types helps in recognizing infections.
What is exocytosis?
The movement of large molecules out of the cell.
What is a symbiont?
An organism that lives with another organism and both benefit.