Cell Theory
All living things are made of cell
Cells come from pre-existing cells
Do prokaryotic cells have DNA
yes
Do eukaryotic cells have organelles?
Yes, they have membrane-bound organelles
What are the building blocks of carbohydrates?
simple sugars
What specific molecule categories are proteins?
enzymes, antibodies, structural proteins, transport proteins, etc.
What technologies were important in humans first coming to understand the cellular nature of life?
Microscopes / magnifying lenses were needed for cell and microbiology studies to be possible
Do prokaryotic cells have a nucleus
no, the DNA is loose in the "nucleoid region" and consists of a single "bacterial chromosome"
Are there cell walls in eukaryotic cells
There are cell walls in eukaryotic plant cells, but not in eukaryotic animal cells
triglycerides fit into which major category of macromolecule?
lipids
What will St. Nicholas / Santa Claus give you if you have been naughty this year?
A lump of coal in your stocking
What is a compound microscope?
One in which the image is magnified by multiple lenses prior to reaching the eye of the viewer.
Are prokaryotic cells larger or smaller than eukaryotic cells?
smaller
Place the following terms in their proper hierarchical order: Organ, cell, tissue, organelle, molecule, atom
atom->molecule->organelle->cell->tissue->organ
What are the monomers of DNA?
nucleotides
Through what process are monomers assembled into polymers with respect to organic macromolecules?
dehydration synthesis
What was the first membrane-bound organelle seen through a microscope by humans?
The nucleus (1831)
Do prokaryotic cells have membrane-bound organelles?
no
The plasma membrane is said to be semipermeable. What does that mean?
It allows some substances to cross, but not other.
What is a disaccharide specifically?
A carbohydrate with two carbon rings
Which macromolecules do cell membranes mostly consist of?
phospholipids (and proteins)
Describe one of the major exceptions to the cell theory
The three we focused on were:
1) Mitochondria and chloroplasts are independently reproductive (including nucleic acid) within a eukaryotic cell.
2) If all cells come from pre-existing cells, what about the first cell? Where did it come from?
3) A virus has some characteristics of living things when inside a host cell, yet a virus is not cellular / is not made up of cells.
Name two categories of prokaryotic cells
Bacteria and Archaebacteria
Are there cell walls in eukaryotic cells
There are cell walls in eukaryotic plant cells, but not in eukaryotic animal cells
Is the molecule that makes up the largest component of cytoplasm an organic molecule?
No, H2O is neither organic nor a macromolecule
Which two major categories of organic macromolecules reside in the nucleus
nucleic acids (DNA) and the proteins called histones