Cell Parts
Cell Membrane
Photosynthesis
Respiration
Cell Communication
100
What are organelles and what is their function?
Organelles are parts of the cell that carry out specific functions to maintain homeostasis.
100
Cell membranes are SELECTIVELY PERMEABLE. What does it mean?
It means that some molecules are able to pass through while other molecules are NOT.
100
Name the organelle that carrier out photosynthesis.
CHLOROPLAST.
100
Name the organelle that carries out AEROBIC RESPIRATION.
MITOCHONDRION.
100
Name the cell part that helps cells communicate.
CELL MEMBRANE.
200
Which cell structure provides cells with energy?
MITOCHONDRION.
200
One of the functions of cell membrane is to help cells communicate. Name the structures found on cell membrane that help with this function.
These structures are called RECEPTORS.
200
Name the substances needed for photosynthesis.
CARBON DIOXIDE and WATER.
200
Name the substances needed for aerobic respiration.
GLUCOSE and OXYGEN.
200
What is the name of the molecules located on cell membrane that receive the signals from other cells?
RECEPTOR MOLECULES.
300
Which cell structure produces ATP?
MITOCHONDRION.
300
Explain why starches and proteins have to be digested into smaller molecules before cells can use them.
These macromolecules have to be broken down into smaller molecules because they are too big to pass through cell membrane.
300
Name the substances that are produced by photosynthesis.
GLUCOSE and OXYGEN.
300
The energy released during cellular respiration is stored in the chemical bonds of which molecule?
ATP.
300
Why do cells of multicellular organisms need to communicate?
Cells need to communicate to coordinate their activities.
400
Which organelle produces oxygen and which organelle uses oxygen?
CHLOROPLAST produces oxygen and MITOCHONDRION uses oxygen.
400
Name the process by which small uncharged molecules pass through cell membrane and state whether this process uses energy or not.
The name of the process is DIFFUSION and it does NOT use energy because molecules are moving from the area of high concentration to the area of low concentration.
400
Do plants produce the same amount of oxygen during day and night, during summer and winter? Explain!
Plant require sunlight to photosynthesize. Plants stop making oxygen at night when light in not available. Plants produce less oxygen in winter since there is less sunlight available during winter months.
400
How is aerobic respiration associated with oxygen and carbon dioxide?
Aerobic respiration uses oxygen and produces carbon dioxide.
400
To recognize specific signaling molecules is a function of which cell part?
CELL MEMBRANE.
500
Name the substance that is found in lysosomes and state the function of this substance ?
Lysosomes contain ENZYMES. ENZYMES help break down food molecules, old cell parts and molecules that are harmful for the cell.
500
What kind of solution would make cells become smaller and shrivel up? Name the process that is responsible for this change in a cell volume.
The solution would have to have higher solute concentration compared to cell's cytoplasm. The name of the process is OSMOSIS (diffusion of water).
500
What would happen to oxygen production if plants are placed into dark room?
Plants would no longer photosynthesize and oxygen production would stop.
500
Write the equation of aerobic respiration.
C6H12O6 + 6O2 -------> 6CO2 + 6 H2O + 36 ATP
500
What happens to the cells if their signaling molecule or receptor molecule are destroyed?
The cells will NOT get the message and will NOT respond with appropriate actions.
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