Parts of a Cell
What part of the cell is responsible for controlling what enters and exits the cell?
Cell Membrane
What type of transport does not require energy?
Passive Transport
What are the three main points of cell theory?
1. All living things are made of cells.
2. Cells are the basic units of life.
3. All cells come from pre-existing cells.
Which type of cell lacks a nucleus?
Prokaryotic
Can a plant survive in a room with no light at all?
What structure in plant cells is responsible for photosynthesis?
Chloroplast
What is the movement of water across a semi-permeable membrane called?
Osmosis
Who were the two scientists that contributed to the development of cell theory?
Schleiden and Schwann or others
Name one example of a eukaryotic organism.
Plants, animals, fungi, or protists
What is the main product of photosynthesis?
Glucose
Which part of the cell contains the genetic material?
Nucleus
Define diffusion
Movement of molecules from an area of higher concentration to an area of lower concentration.
True or False: Viruses are considered living organisms according to cell theory.
False
What is the main difference in the DNA structure of prokaryotic cells compared to eukaryotic cells?
Prokaryotic DNA is circular and not enclosed in a nucleus.
What process do cells use to convert glucose into energy?
Cellular Respiration
What is the jelly-like substance inside the cell called?
Cytoplasm
What is an example of active transport?
Sodium-potassium pump
How does cell theory apply to multicellular organisms?
They are made of many cells that function together.
Do prokaryotic cells have membrane-bound organelles?
No
What are the reactants of cellular respiration?
Glucose and oxygen
What is the function of ribosomes in a cell?
To produce proteins
How does facilitated diffusion differ from simple diffusion?
Facilitated diffusion requires a transport protein
What role does cell division play in cell theory?
It explains how cells arise from pre-existing cells.
What is the role of the cell wall in plant cells?
To provide structure and support.
Compare the energy efficiency of photosynthesis and cellular respiration.
Photosynthesis captures energy; cellular respiration releases energy.