Chapter 1 Flashcards
What type of cellular reproduction creates colonial copies of the cell?
Mitosis
True/False: Exogenous signals come from the interior of the cell.
False
Every cell has a genetic program called the?
Genome
Bacteria possess?
Plasma membrane/genome
Every biological process requires what? And comes from where?
Energy
From the Sun
How big are eukaryote cells typically?
10-30uM
Which type of cell is stirring up some excitement due to their chromosomes being trip loud making them pluripotent and capable of transplantation?
Embryonic Stem Cells
True/False: Most human cells possess a single nucleus that contains two copies of each chromosome.
True
Who is credited with the discovery of cells?
Robert Hook
Genes perform as? (4)
- storage lockers of genetic info
- program for replication
- direction for running cellular activities
- blueprinted for cellular proteins
Light energy is converted by photosynthesis into chemical energy that is stored in carbohydrates. In animal cells, energy arrives prepackaged often in the form of?
- protein
- glucose
- fatty acids
Bacteria have a symbiotic relationship w/humans. The microbiome that resides within the intestines perform what functions? (4)
- aid in digestion
- produce co-factors
- protect from pathogenesis
- produce vitamins
Intestinal cells, by increasing fold within the plasma membrane create _______ in order to increase surface area for aiding and capturing materials in digestion.
Villi
Cells are microscopic in size because?
- the distance between the cell surface and interior becomes to great for the cells needs to be set by simple diffusion
- the surface area becomes limiting as a cell increases in size
True/False: Cell differentiation in mammals is irreversible?
False
