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99 Cards in this Set

  • Front
  • Back

Marine biology

The study of organisms that live in the ocean.

What are the four types of oceanography?

Physical, chemical, biological, geological.

Physical oceanography

The movement of water; waves, currents, tsunamis.

Chemical oceanography

Chemistry of the ocean; salinity, pH, temperature.

biological oceanography

Where organisms are found.

Geological oceanography

Plate tectonics, volcanoes

Who is considered to be the first real marine biologist?

Aristotle - first to really look at the ocean.

Why is James Cook important to the field of marine biology?

First captain to have a full-time naturalist on board his ship.

Why is Charles Darwin important to marine biology?

Describe how atolls were formed.

What does sonar stand for?

Sound navigation ranging

What does ROV stand for?

Remote operated vehicles

Where does an ROV operate from and what is it used for?

Operates from a distance on the surface. Used for rescue scuba divers collect samples.

What does AUV stand for?

Autonomic operated vehicle

Where does an AUV operate from and what is it used for?

It is controlled by itself (computer program). Used for taking chemistry data.

What is an Aquarius?

Underwater lab

What are the steps of scientific method?

Observation > question > hypothesis > prediction > experiments > results. The scientific method is circular.

What was the first voyage done for scientific purposes?

Challenger expedition

What did the invention Marine Laboratories allow?

Allowed us to study marine organisms alive

What did the invention of scuba allow us to do?

Allowed us to look at organisms in natural habitat

Covalent bond

Sharing of electrons. Strongest bond.

Ionic bond

Taking of electrons. Weaker than covalent bonds.

Hydrogen bond

No movement of electrons. Opposites attract with positive hydrogen. Both strong and weak depends on temperature.

Molecules

Combination of two or more atoms.

Elements

Substance composed of a single type of atom.

What is the basic unit of matter?

Atoms

Why is water polar?

It shares electrons unequally.

The three states of water?

Ice, liquid, gas

Which state has a strong hydrogen bond?

Ice - less dense

Which state has the weakest hydrogen bonds?

Gas

Which state has fluid hydrogen bonds?

Liquid - denser than ice

Ice state occurs at what degree?

0 degrees and below

At what degree does liquid state occur?

0 degrees to 100 degrees

At what degree does the gas state occur?

100 degrees and over

What is the number of protons and electrons in an element?

Its atomic number

What are two interesting things about water?

High heat capacity, great solvent.

What is the amount of heat that must be added to a substance to raise the temperature by a certain degree?

Heat capacity

Why is water a great solvent?

Because its polar

What is a solvent?

The thing that's doing the dissolving

What is the solute?

The thing that is being dissolved

Ions created form ionic bonds are called?

Salts

What are the most common types of salts that make up salinity in the ocean?

Sodium, chloride

What is the salinity of the ocean?

35 parts per thousand (0/00)

What happens to salt when water freezes or evaporates?

It leaves the salt behind

Is the temperature of the water the same everywhere?

Deep down yes. Up and around the surface no.

Is the salinity of the ocean the same everywhere?

No

Where is the warmest water located?

Near or on the equator

Where is the coldest water located?

In the poles

The temperature changes from surface temperature to colder deeper water temperatures is called?

Thermocline

How do positive ions that make up salt get into the ocean?

Positive ions get in through litogenous sediment brought from rivers and streams

How do negative ions that make up salt get into the ocean?

Negative ions get in through volcanic eruptions and hydrothermal vents.

What are the four major building blocks of life?

Carbohydrates, proteins, lipids, nucleic acids.

Glucose

List three functions of proteins?

Enzymes, hormones, toxins.

What is DNA?

deoxyribonucleic acid- double stranded

What is RNA?

Ribonucleic acid - single-stranded

what nucleotide bases are found in DNA?

AGTC

What nucleotide bases are found in RNA?

AGUC

What is the purpose of an enzyme?

Quicken chemical reactions (catalyst)

In DNA G matches to? And aA matches to?

C and T

In RNA A matches to? And G matches to?

U and C

What is the function of cellulose and what is it found in?

Makes up fiber, support cell walls (structure) . Found in plants and algae

what is the function of chitin and what is it found in?

Support of cell wall (structure) . Found in fungi and arthropods.

What is the function of glycogen and what is it found in?

Used for energy storage. Found in animals.

What is the function of peptidoglycan and what is it found in?

Support of cell wall (structure) . Found in bacteria.

What is the function of starch and what is it found?

Used as a form of energy storage. Found in plants and algae.

What is ATP?

(Adenosine tri-phosphate) an energy source (eating food makes ATP)

What types of organisms do photosynthesis, what are they called?

Plants, algae, and bacteria. Autotrophs

What organelle in eukaryotes does photosynthesis?

Chloroplasts

Other organisms that produce energy not using the Sun are called?

Chemoautotrophs

What types of organisms to cellular respiration?

Every living organism does some form

What types of organisms only do cellular respiration what are they called?

Heterotroph

What organelle in eukaryotes does cellular respiration?

Mitochondria

What are the two types of cellular respiration?

Anaerobic, aerobic

Anaerobic cellular respiration uses...

Oxygen and is very efficient

Aerobic cellular respiration uses...

Something other than oxygen and is not as efficient

What organelles do plant cells have that animal cells do not?

Vacuole, chloroplast, & a cell wall

What is the characteristics of a prokaryote cell and who has this type of cell?

Simple, small, non nucleus, circular DNA. Bacteria and archaea.

What are the characteristics of a eukaryote cell and who has this type of cell?

Complex, large nucleus, linear DNA, membrane bound organelles. Everything besides bacteria and archaea

what is the movement of molecules or ions from an area of higher concentration to an area of lower concentration?

Diffusion

What is the movement of water over a semipermeable membrane from an area of lower concentration of solutes to an higher concentration of solutes?

Osmosis

What does not use energy to move molecules in and out of the cell?

Passive transport (Moves with diffusion)

What uses energy, ATP, to move molecules in and out of cell?

Active transport (Moves against diffusion)

What are the two types of osmoregulation found in animals?

Osmoconformer, osmoregulators

Osmoconformers...

Salinity in the body is the same as outside

Osmoregulators...

Control internal salinity concentrations to be different than outside

Ways organisms thermoregulate: ectothermic

Can't maintain metabolic heat body temperature imitates external temperature. Body heat generated leaves

Ways organisms thermoregulate: endothermic

Maintain metabolic heat internal temperature stays warmer than external temperature. Body heat generated stays.

Ways organisms thermoregulate: polikilotherm

Temperature varies with external temperature

Ways organisms thermoregulate: homeotherm

Regulate body temperature, does not vary as much as external temperature.

Know

Two types of cell division?

Mitosis, meiosis.

Two equal daughter cells. Identical to each other and parent cells. Happens everywhere except testes and ovaries.

Mitosis

4 daughter cells that are not the same genetically. Have genetic info from parent cell. Happens in testes and ovaries.

Meiosis

Know

Know

Photosynthesis formula

Know how to draw

Atomic number, symbol, name, mass.

Know how to draw

An atom

Know how to draw an

Electron configuration