Whats the purpose?
Name that organelle
Cells
Name it.
Misc.
100
What is the purpose of diffusion?
It helps in the movement of substances in and out of the cells.
100
Name the part labelled C, what is its function?
Chromosomes (nucleus region), carries genetic information.
100
Which type of cell, prokaryotic or eukaryotic, has membrane-bound organelles?
Eukaryotic
100
What are the three domains of living things?
Archaea, Bacteria, and Eukarya.
100
What are the two parts to the Cell Theory
All organisms are made up of cells, all cells come from re-existing cells.
200
What does it mean for a membrane to be semi-permeable or have selective permeability?
Only certain molecules can pass through, be facilitated through, or be not allowed through.
200
Which part is labelled E, what is its function?
Cell wall, protection and support.
200
Which type of cells, prokaryotic or eukaryotic, are generally smaller in size?
Prokaryotic.
200
What type of bond shares electrons? Give an example
Covalent bonds, H2 or O2...
200
How is a scientific theory different than what is meant in the common usage of the word?
They are a rigorously tested and supported explanation of a pattern or process.
300
What is the ECM of animal cells? Where is it? What is it made of?
The ECM is the extracellular matrix. It surrounds the cell and it supports the cells in a tissue and regulates intercellular adhesion and communication. It's made up of collagen proteins, proteoglycan, plasma membrane, actin filaments, and integrin.
300
Which part is labelled G, what is its function?
Golgi Apparatus, "post office" sorts incoming vesicles from the ER and ships them out to where they need to go.
300
Which type of cell, prokaryotic or eukaryotic, has linear DNA and which has circular DNA?
Eukaryotic has linear DNA, Prokaryotic has circular DNA.
300
What are the three types of transport proteins?
Channel proteins, carrier proteins, and pumps.
300
What is a cell?
The smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
400
How does an ion pump work?
Na ions approach the pump, bind to it, ATP binds to the pump, the shape changes, the ions are pumped out of the other side. Then K ions enter the pump and flow through from the outside, and the shape changes again. The K ion is released into the cell.
400
Which part is labelled F,
Endoplasmic Reticulum, produce and send proteins throughout the cell.
400
How do adjacent animal cells connect? what is their function?
Tight junctions, desmosomes, and gap junctions. Their function is to allow direct communication, exchange molecules, and exchange information.
400
What is the difference between things that are polar, nonpolar, or ions?
Polar means oppositely charged, and non-polar means equally charged. Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions
400
What is the theory of evolution by natural selection?
Because of the cell theory, cells are therefore connected by common ancestry.
500
What is it about water that enables it to possess all of its special properties? What properties make it special?
Water is polar, which allows for the formation of hydrogen bonds. Which allows ions and other polar molecules to dissolve in water.
500
Which part is labelled E, what is its function?
Centrioles, They organize microtubules that serve as the cell's skeletal system.
500
What are the valence numbers of H, C, O and N? How does this relate to bond formation?
H-1, C-4, O-6, N-5. With ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
500
What is the name for a relationship between two dissimilar organisms.
A symbiotic relationship.
500
What's the difference between hydrophilic and hydrophobic substances? Give an example of each.
Hydrophilic means water loving; hydrophobic means resistant to water.
Many examples, some are...
Sugar, salt, starch, and cellulose are hydrophilic.
Alkanes, oils, fats, and greasy substances are hydrophobic.