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Flashcards in The Carbon Cycle Deck (74)
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1

what does photosynthesis do to carbon atoms? (carbon cycle)

fixes carbon atoms from carbon dioxide into organic compounds (e.g. glucose)

2

what does feeding do to food chains? (carbon cycle)

passes carbon atoms frm organic compounds along food chains

3

what does respiration produce? (carbon cycle)

produces inorganic carbon dioxide from organic compounds as these are broken down easily to release energy

4

what do dead organic material release? (carbon cycle)

carbon is released during respiration by decomposers

5

when does fossilisation occur? (carbon cycle)

when dead organis matter does not fully decay due to conditions in the soil, leading to fossil fuel formation

6

what does combustion release? (carbon cycle)

releases carbon dioxide into the atmosphere when fossil fuels are burned

7

complete this carbon cycle diagram

8

name two molecules in plants that contain carbon

starch

glucose

9

the carbon in plants can be released into the air as carbon dioxide

give two ways in which this can happen

respiration

decomposition

10

increasing the amount of carbon dioxide in the air can lead to global warming

give six different harmful consequences of global warming

melting ice caps

extinction

climate change

soil erosion

food chain disruption

habitat destruction

11

complete this gap fill:

Many fungi are decomposers and play an important part in the carbon cycle. Decomposition is the ... of dead organisms, or other organic material, such as bread. The process releases inorganic mineral ions, such as ... and ... in the soil. Decomposition also releases a gas called ... into the air. This gas is produced by a process called ... which releases the energy that fungi need to grow. The same gas is taken out of the air by plants and used in a process called ... to make food.

Many fungi are decomposers and play an important part in the carbon cycle. Decomposition is the breakdown of dead organisms, or other organic material, such as bread. The process releases inorganic mineral ions, such as nitrate and phosphate in the soil. Decomposition also releases a gas called carbon dioxide into the air. This gas is produced by a process called respiration which releases the energy that fungi need to grow. The same gas is taken out of the air by plants and used in a process called photosynthesis to make food.

12

what is a decomposer?

an organism that eats dead organism or animal droppings, and breaks them down into simple materials

13

what are the main groups of decomposer?

bacteria and fungi

14

what is decomposition?

the breakdown or decay of  dead organisms, or other organic materials

15

what is the process that allows carbon compounds to leave carnivores and enter the atmosphere?

respiration

16

what is the prcess that takes carbon in the atmopshere into flowering plants?

feeding

17

what is the process that takes carbon from flowering plants into herbivores?

feeding

18

what is the process that takes carbon from herbivores into carnivores?

feeding

19

burning fossil fuels return carbon dioxide to the atmosphere

explain how increased use of fossil fuels could affect the environment

increase in greenhouse gases which increases the greenhouse effect

trapped heat in the atmosphere leads to the gradual rise in temperature (global warming)

global warming leads to rising sea levels, melting ice caps, flooding 

this is the result of climate change

20

describe the role of decomposers in the carbon cycle

they break down the remains of dead plants and animals (organisms) releasing carbon dioxide through respiration

this carbon dioixde can then be used in photosynthesis for plants

21

name four carbohydrtes found in plants that contain carbon

starch

glucose

sucrose

cellulose

22

other than fungi and bacteria, what other type of organism is a decomposer?

microorganisms

23

what fixes carbon atoms from carbon dioxide into organic compounds? (e.g. glucose)

photosynthesis

24

what releases carbon dioxide into the atmosphere when fossil fuels are burned?

combustion

25

what releases carbon from dead organic material during respiration?

decomposers

26

what passes carbon atoms from organic compounds along food chains?

feeding

27

what occurs when dead organis matter does not fully decay due to conditions in the soil, leading to fossil fuel formation?

fossilisation

28

what produces inorganic carbon dioxide from organic compounds as these are broken down to release energy?

respiration

29

what are inorganic nitrogen compounds (3)?

nitrogen in the air

nitrogen in the soil

nitrate in the soil

30

what are organic nitrogen compounds (7)?

amino acids

protein

urea

ammonia

nucleotides

DNA
ATP