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TEST: Unit 2_Energy, Matter and Life

Posljednje ažuriranje about 3 years ago

23 questions

Energy for Life

1

4

3

1

1

Photosynthesis

4

1

1

Cellular Respiration

1

1

1

Nutrient Cycles

1

1

1

2

1

1

Mechanical and Chemical Weathering

1

1

1

Erosion and Deposition

1

1

1

Pitanje 1

1.

Pitanje 2

2.

Pitanje 3

3.

Which of the following are included in the laws of thermodynamics?

absolute zero (0K or -273 degrees Celsius) is the point where all thermal motion is removed from molecules (stops)

For every action, there is an equal and opposite reaction

An object at rest tends to stay at rest and an object in motion tends to stay in motion

Energy can be transferred from one system to another, or transformed from one form to another.

thermal energy cannot be transferred from a colder body to a hotter body

Pitanje 4

4.

Pitanje 5

5.

Which of the following will be reduced in this reaction?

Cu²⁺

Fe

Cu

Fe²⁺

Pitanje 6

6.

Requires carbon dioxide as a reactant
Requires oxygen as a reactant
Requires carbohydrates as a reactant
Produces carbohydrates as an end product
Produces carbon dioxide as an end product
Uses energy
Releases energy
Produces oxygen as an end product

Photosynthesis
Cellular Respiration

Pitanje 7

7.

In the first stage of photosynthesis, _______________ molecules accumulate to form a gradient in the thylakoid.

oxygen

carbon

nitrogen

hydrogen

Pitanje 8

8.

Pitanje 9

9.

Cellular respiration has three main stages: place the following into the correct order.

electron transport chain
glycolysis
Krebs Cycle

Pitanje 10

10.

During the electron transport chain (cellular respiration), what form of energy is produced in the largest quantity?

FADH2

GTP

ATP

NADH

Pitanje 11

11.

2 molecules of pyruvate are produced in which stage of cellular respiration?

citric acid cycle

electron transport chain

glycolysis

Pitanje 12

12.

Which of the following processes does not contribute to carbon cycling?

combustion

respiration

photosynthesis

condensation

Pitanje 13

13.

The pie chart shows the gases that make up Earth's atmosphere. Which gas is represented by the section labeled 78.09%?

oxygen

nitrogen

argon

carbon dioxide

Pitanje 14

14.

Which of the following is true of the phosphorus cycle but NOT the water cycle?

It involves multiple processes.

It is not a major contributor to living things.

It does not include a gaseous form.

It involves the ocean.

Pitanje 15

15.

Pitanje 16

16.

Phosphorous is an important component in which of the following?

neither A nor B

DNA

ATP

both A and B

Pitanje 17

17.

Nitrogen is a primary elemental component of which of the following?

sugars and DNA

fats and amino acids

DNA and amino acids

sugars and amino acids

Pitanje 18

18.

Which is an example of chemical weathering?

Water that has become ionized reacts with silicate minerals in a rock, producing new minerals.

Tree roots extending into cracks in a rock thicken as they grow, splitting the rock into fragments

all of the above

Glaciers scrape away bits of rock as they advance across Earth's surface.

Pitanje 19

19.

Mechanical weathering is

the radioactive breakdown of rock

all of the above

the chemical breakdown of rock

the physical breakdown of rock

Pitanje 20

20.

What is weathering?

the process by which sediment is compacted into rock

the process by which rocks are broken down into sediment

the process by which sediment is transported from one place to another

the process by which sediment is deposited and built up into landforms

Pitanje 21

21.

What is deposition?

the physical breakdown of rock by natural forces, including the actions of organisms

the removal of rock or soil by the action of gravity, water, ice, or wind

the accumulation of sediment in a low-lying area due to the action of gravity, water, ice, wind, or organisms

the decomposition of rock by natural forces, which change the rock's chemical composition

Pitanje 22

22.

What is erosion?

the removal of rock or soil by the action of gravity, water, ice, or wind

the accumulation of sediment in a low-lying area due to the action of gravity, water, ice, wind, or organisms

the physical breakdown of rock by natural forces, including the actions of organisms

the decomposition of rock by natural forces, which change the rock's chemical composition

Pitanje 23

23.

Which answer choice correctly lists sediment by increasing grain size?

gravel, boulder, silt, sand, clay

clay, sand, silt, boulder, gravel

boulder, gravel, sand, silt, clay

clay, silt, sand, gravel, boulder