Unicellular vs Multicellular
Which is more complex? Prokaryotes or Eukaryotes?
Eukaryotes
Which organelle is responsible for making energy (ATP)?
Mitochondria
What is the job of the cell membrane?
Let substances in and out of the cell
What are the two broad categories of cell transport?
Passive and Active Transport
Signaling molecules are called ligands and they bond to a ____________.
Receptor
in single celled organisms, materials are stored in what organelle?
Vacuole
Which organelle is responsible for making proteins?
Ribosomes
What does semipermeable mean?
allowing certain substances to pass through it but not others
Which type of transport goes from a high concentration to a low concentration. (down a gradient)
Passive Transport
Describe the importance of the receptors shape in cell signaling.
If the receptor is not the correct shape for the signaling molecule, the signal will not be sent.
Single celled organisms rely on ___________ to maintain homeostasis because they only have one cell.
Organelles
Which body system is similar to the cell membrane?
Respiratory System (lets gas in and out)
Other answers
What are the two parts of a phospholipid. Which part is hydrophobic and which part is hydrophilic?
Head - Hydrophilic
Tail - Hydrophobic
Name the three types of passive transport
Simple diffusion
Facilitated Diffusion
Osmosis
What are the two ways a signal can be sent through the body?
Nervous system and bloodstream
Give an example of an organelle and the body system it is most similar to.
Answers will vary
Which organelles are found in plant cells but not animal cells? (there are three)
Cell wall
Chloroplast
Central vacuole
What are the four parts that make up the cell membrane?
Phospholipids
Proteins
Cholesterol
Carbohydrates
What is the difference between endocytosis and exocytosis?
Endocytosis - taking up large materials into the cell using energy
Exocytosis - releasing large materials out of the cell using energy
What initiates cell signaling in the body?
Stimulus - environment
What are the levels of organization in the human body, starting from the smallest then moving to the largest.
Organelles - cells - tissues - organ - organ systems - organism
Name three organelles and their function
Answers will vary
Describe what is meant by the fluid mosaic model of the cell membrane.
Fluid - moves around and isn't static
Mosaic - made of many different parts
Describe what happen to a cell when placed in a isotonic, hypotonic, and hypertonic solution.
Iso - stays the same
hypo - cell grows
hyper - cell shrinks
What molecules inside of the cell help relay the message from the cell signal?
Proteins