Ecology- Chapter 5 Post Quiz

Which of these is not a basic energy requirement for organisms

 

cell maintenance

 

none of these are energy requirements

 

all are energy requirements

 

growth

 

reproduction

all are energy requirements

Which of these can serve as a source of energy when sunlight is not available

 

CO2

 

in-organic nutrients

 

water

 

sunlight

in-organic nutrients

This organism creates its energy from inorganic sources

 

heterotroph

 

autotroph

autotroph

Which of these is not a type of photosynthesis

 

C3

 

C4

 

CAM

 

chemosynthesis

chemosynthesis

Carnivorous plants consume their prey as their primary means for obtaining energy

 

True

 

False

False

Refer to the figure showing the CO₂ uptake in soybean leaves in response to increasing O₂ concentration for soybean leaves exposed to two different CO₂ levels.

 

CO2 uptake becomes negative by 100% O2 concentration at both CO2 levels.

 

CO2 uptake decreases with increasing O2 concentration at both CO2 levels.

 

CO2 uptake becomes negative by 100% O2 concentration at high CO2 levels.

 

CO2 uptake increases with increasing O2 concentration at both CO2 levels.

CO2 uptake decreases with increasing O2 concentration at both CO2 levels.

The primary source for carbon used by plants comes from _______

 

atmosphere

 

water

 

both soil and water

 

soil

atmosphere

Which of the following are not heterotrophs?

 

archea present in the hotsprings of yellowstone

 

green algae

 

Green algae and parasitic worms

 

Green algae and Archea

 

bacteria consuming dissolved organic compounds

 

parasitic worms present in the guts of mammals

Green algae and Archea

What takes place during the first step of photosynthesis, referred to as the “light-driven reactions”?

 

CO2 is oxidized by solar radiation.

 

CO2 is fixed, producing carbohydrates.

 

Chlorophyll is oxidized by water.

 

Water is split to provide electrons to synthesize ATP and NADPH.

Water is split to provide electrons to synthesize ATP and NADPH.

The table below shows the ratio of oxygen to carbon dioxide in the atmosphere of four different environments, and the typical temperature. In which environment would we expect photorespiration to be highest?

Environment	O2:CO2	Temperature
1	0.2	Warm
2	0.2	Cool
3	2.0	Warm
4	2.0	Cool

 

Environment 2

 

Environment 3

 

Environment 1

 

Environment 4

Environment 3

The table below shows the ratio of oxygen to carbon dioxide in the atmosphere of four different environments, and the typical temperature. In which environment would we expect photorespiration to be lowest?

Environment	O2:CO2	Temperature
1	0.2	Warm
2	0.2	Cool
3	2.0	Warm
4	2.0	Cool

 

Environment 4

 

Environment 3

 

Environment 2

 

Environment 1

Environment 2

This organism relies on consuming other organisms to produce energy

heterotroph

Carnivorous plants consume prey items to increase their access to in-organic nutrients not present in the soil

true

that takes place last during the fixation part of chemosynthesis (Calvin Cycle)

CO2 is fixed, producing carbohydrates