Biology Chapter on Respiration Flashcards

Questions and Answers

What is the food involved in respiration?

Glucose

Internal respiration is controlled by which allow energy to be released in .

Enzymes, Carbon dioxide

What are the energy molecules trapped in respiration called?

ATP

What is aerobic respiration?

The release of energy from food in the presence of oxygen Signup and view all the answers

What is anaerobic respiration?

The release of energy from food without requiring the presence of oxygen Signup and view all the answers

Most living things that get energy from aerobic respiration are called what?

Aerobes Signup and view all the answers

The energy stored in in glucose is released and used to make .

Glucose, ATP Signup and view all the answers

When ATP breaks down, it __________ for all the reactions in a cell.

Supplies Signup and view all the answers

What is the equation for aerobic respiration?

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP Signup and view all the answers

Aerobic respiration is relatively __________; 40% of the energy in glucose is used to make ATP.

Efficient Signup and view all the answers

Any energy not used to produce ATP is __________.

Lost as heat Signup and view all the answers

What is stage 1 of respiration?

Glycolysis Signup and view all the answers

Glycolysis takes place in the __________ as enzymes are found here.

Cytosol Signup and view all the answers

Glycolysis does not require __________.

Energy Signup and view all the answers

Glycolysis only releases __________ of energy.

Small amounts Signup and view all the answers

Glycolysis is the same for both and respiration.

Aerobic Signup and view all the answers

A 6 carbon carbohydrate (glucose) is converted to what during glycolysis?

Two 3-carbon molecules with the release of a small amount of energy Signup and view all the answers

Most of the energy in the glucose molecule remains __________ in each 3-carbon molecule.

Stored Signup and view all the answers

Stage 2 of respiration requires and uses what?

CO2 Signup and view all the answers

Stage 2 of respiration releases a __________ amount of energy.

Large Signup and view all the answers

Stage 2 occurs in the __________ as the necessary enzymes are found here.

Mitochondria Signup and view all the answers

The 3-carbon molecules are broken down to and .

Carbon dioxide, Water Signup and view all the answers

The breakdown of the 3-carbon molecules releases a lot of .

Anaerobic, Energy Signup and view all the answers

There is __________ energy left in carbon dioxide and water.

Very little Signup and view all the answers

Study Notes

Respiration Basics

Glucose is the primary food source used in respiration.
Internal respiration is governed by enzymes that facilitate energy release from glucose and produce carbon dioxide.

Energy Storage and Use

Energy captured in molecules is known as ATP (Adenosine Triphosphate).
ATP breaks down to supply energy for cellular processes, such as muscle movement and cell growth.

Types of Respiration

Aerobic respiration occurs in the presence of oxygen, releasing energy from food.
Anaerobic respiration takes place without oxygen, also releasing energy from food.
Organisms that primarily rely on aerobic respiration are termed aerobes.

Aerobic Respiration Efficiency

Aerobic respiration is efficient, converting about 40% of glucose's energy into ATP.
Any energy not converted into ATP is lost as heat.

Stages of Respiration

Stage 1: Glycolysis, occurs in the cytosol where enzymes are located.
- Glycolysis does not require energy and releases small amounts of energy.
- It converts a 6-carbon carbohydrate (glucose) into two 3-carbon molecules, maintaining stored energy within them.
Stage 2 requires carbon dioxide (CO2) and occurs in the mitochondria, where necessary enzymes are found.
- It releases a large amount of energy.
- The 3-carbon molecules are further broken down into carbon dioxide and water during this stage.

Energy Transition and By-products

The anaerobic breakdown of 3-carbon molecules releases a substantial amount of energy.
Very little energy remains in the form of carbon dioxide and water after respiration.

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Description

Explore key concepts of respiration with these flashcards. Learn important terms like glucose, enzymes, ATP, and the differences between aerobic and internal respiration. Perfect for biology students looking to reinforce their understanding of energy release in living organisms.