Unit 5

Question 1

What is life defined by?

Answer 1

the capacity for growth, metabolism, energy transformation, redproduction

Question 2

What are prokaryotes?

Answer 2

Single celled organisms, such as bacteria and scion bacteria, which are photosynthetic bacteria that are aquatic, and make their own food

Question 3

What are eukaryotes

Answer 3

Multicelled organisms they have a complex internal structure so animals

Question 4

Deoxyribonucleic acid, a.k.a. DNA

Answer 4

Carries genetic material, found all organisms exists in the cell nucleus and has two DNA chains connected by bases

Question 5

Ribonucleic acid, a.k.a. RNA

Answer 5

Involved in protein formation, and is used by DNA to communicate with the surrounding cells

Question 6

What type of bond does carbon have?

Answer 6

Covalent bond, they share electrons to form pairs

Question 7

What does bonding oxygen with carbon do?

Answer 7

Releases energy 

Question 8

What does breaking carbon oxygen bonds do?

Answer 8

It requires energy

Question 9

Why is energy required for metabolism

Answer 9

Synthesize and breakdown molecules, transport molecules into an out of cells, ingest and breakdown, food, export waste

Question 10

Why is photosynthesis important?

Answer 10

 releases oxygen in the atmosphere, provides energy for ecosystems, provide carbons needed for organic molecules

Question 11

What are autotroph

Answer 11

They obtain energy through photosynthesis

Question 12

What are heterotrophs

Answer 12

They obtain energy by reacting organic carbon with oxygen

Question 13

What is an ecosystem?

Answer 13

A community of organisms and their abiotic environment

Question 14

What are the three main ecosystems?

Answer 14

Freshwater, ecosystems, marine, ecosystems, and terrestrial ecosystems

Question 15

Freshwater ecosystems

Answer 15

Lakes, rivers streams, the least common, has animals, plants, fungi, and prokaryotes

Question 16

Marine ecosystem

Answer 16

The most common 75% of the air surface. Shallow ocean bio, diverse, coral reefs, ocean water, mainly phytoplankton, but fish and other swimming marine organisms and deep ocean bottom diverse variety of marine organisms no light reaches here.

Question 17

Terrestrial ecosystems

Answer 17

These are diverse communities of land welling organisms and have been grouped into categories, called biomes

Question 18

What are the six biomes?

Answer 18

Tropical rainforest, Savannah, subtropical desert, temperate, grasslands, boreal, forest, tundra

Question 19

Tropical rainforest biome

Answer 19

Found any Qual regions. It’s the most biome diverse with stable, temperature and sunlight and it’s warm.

Question 20

Savannah biome

Answer 20

Grasslands scattered with trees it’s hot and dry. The plant roots have been adapted to sprout back quickly after a fire.

Question 21

Subtropical desert biome

Answer 21

Usually associated with mountain ranges it’s very dry and there’s extreme temp fluctuations

Question 22

Temperate grassland biome

Answer 22

Hot summers, cold winters. The dominant vegetation is grass with few trees.

Question 23

Boreal forest biome

Answer 23

This is part of the temperate forest biome. It’s the most common biome in North America with a cold, dry winter and short wet summer dominant vegetation is kind of for trees.

Question 24

Tundra biome

Answer 24

This is a polar biome. It exists above the tree line at high altitudes. It has a very short growing season and vegetation is low line like shrubs and grasses.

Question 25

What is resistance?

Answer 25

The ability of an ecosystem to remain at equilibrium despite disturbance

Question 26

What is resilience?

Answer 26

The speed at which an ecosystem recovers to equilibrium after a disturbance

Question 27

What are the four trophic levels?

Answer 27

Producer, primary consumer, secondary consumer, and Apex or tertiary consumers

Question 28

Producers

Answer 28

The energy source for majority of earths ecosystems, their photoautotroph, so they convert solar energy to chemical energy or their chemo autotroph, which can convert an organic molecules in the chemical energy

Question 29

What is gross primary productivity and net primary productivity in producers?

Answer 29

Gross primary productivity is the rate at which solar energy is captured in the sugar, molecules, drilling photosynthesis, and net primary productivity is the energy that remains in the producers after counting for metabolism and heat loss

Question 30

What is the primordial soup theory?

Answer 30

Massive scale, outgassing of volcanos which put CO2 and N2 into the atmosphere. The simple organic molecules formed in the atmosphere, nitrogen and acid chains were fixed through lightning and nucleotides form in the atmosphere that then rained down onto earth.

Question 31

What were earths first organisms?

Answer 31

They were prokaryotes, because earth did not have oxygen, they broke down carbohydrates through fermentation and aerobic reposition as oxygen was highly reactive and a poisonous gas to early organisms

Question 32

How did the atmosphere become oxygen rich?

Answer 32

Photosynthesizing organisms begin to dominate sial bacteria formed dome shaped structures called stromatolites these increased photosynthesis which released increasing amounts of oxygen into the atmosphere

Question 33

How did you carry its evolve?

Answer 33

Through Endo symbiosis, which is when one prior chaotic cell engulf another the reproduction of the larger cell leaves to the reproduction of internal prokaryotic cell they began to diversify when aerobic reposition evolved