Chapters 3
- Water sticking to other water molecules
- Water sticking to other surfaces
Trauma related to a quick/severe change in pressure is called what?
Photosynthesis vs Cellular respiration
Produces Oxygen
Consumes Oxygen
Viruses are non-cellular. True or False?
True
Would photosynthetic bacteria be closer to the surface or the ocean floor?
The surface.
What causes surface tension?
- Layer of cohesion between water-air interface
What color of light disappears first and why?
- Red, it has the lowest wave length/energy and is absorbed easier.
What are 2 differences between Uni and Multi cellular organisms?
- No Nucleus / Has Nucleus
- No membrane bound organelles / Has membrane bound organelles
- 1 cell / more than 1
What part of the virus contains the DNA?
Capsid
What is POM?
Particulate Organic Matter
The quantity of heat required to change the temperature of 1 gram of H2O by 1°C is called what?
Heat capacity
What is a Thermocline?
- a rapid change in temperature with depth
What is the main function of chloroplast and the mitochondria.
- Produce energy for the cell
How much viruses are estimated to be in the ocean?
a) 1,000,000
b) 100 Trillion
c) 1 Quintillion
d) 10^30
Dense mats of filaments with
sediments and other bacteria is called what?
Stromatolites
Why does density of water decrease from 4 --> 0 degrees celcius?
- Ice crystal formation causes the molecules to bond together from farther away.
What is the cause for seasonal Thermoclines?
- Amount of sunlight
What are the 3 factors needed for Natural Selection?
- Variation (in DNA bc of mutations)
- Inheritance
- More offspring produced than survived
What is the differences between the lytic & lysogenic cycles?
- Lytic copies the virus information immediately
- Lysogenic allows the virus to inject its DNA and remain dormant
What is the difference between Thermophiles and Halophiles
- Thermo likes hot temperatures
- Halo likes high salt concentrations/acidic environments
Why do Oxygen levels increase after the "Oxygen Minimum zone"
- O2 rich water sinks because of the conveyor belt
- Less biomass(organism) to consume the oxygen from cellular respiration
- O2 is more soluble in colder temperatures and higher pressure
What are 3 effects of El Nino?
- Up welling stops off the coast of California and Peru
- Disruption in weather
- Disruptions of food webs
What is the correct order of the hierarchal classification (eg. domain, kingdom, ...)
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
What are the steps in which viruses replicate?
1) Virus recognizes & attaches to host
2) Virus introduces its DNA or RNA into host
3) Host replicates viral genetic material and other viral parts
4) New viruses escape host by lysis
5) New viruses infect other cells (hosts)
What is Nitrogen fixation?
A chemical process by which Nitrogen gas is converted into ammonia. This is helpful as fertilizer and purification of water.