ENERGY AND GENETICS

Question 1

what is the most common energy called

what unites the most common energy

• what happens when the bond is broken

Answer 1

Chemical energy is the most common​

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It is the chemical bond that unites atoms or molecules​

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When a bond is broken and atoms are released, the energy in the bond is released as well​

Question 2

What is the role of energy in the body

Answer 2

Energy is needed to:​

Circulate blood, lymph and tissue fluid throughout the body​

Breathing and taking in oxygen ​

Making new cells​

Growth and repair ​

Transmit nerve impulses/movement ​

Build enzymes and hormones ​

Digest food

Question 3

what is catabolism
what is anabolism
what is metabolism

Answer 3

The chemical breakdown of complex substances such as carbohydrates protein and glucose , is accompanied by the release of energy.

Anabolism is the opposite to catoblism , it is the building up of larger molecules from smaller ones , for example proteins from amino acids
-building muscle tissues v
Creating new cells
Minerlise bone

Metabolism: the rate at which energy is
released from cells. Metabolism involves both catabolism and anabolism.

Question 4

how does the body use energy

Answer 4

the body is very good at coverting chemical energy from digestion into other forms of energy
- heat to keep us warm
- kinetic energy to move about
electrical energy to send nerve impulses
- sound energy to speak or make noise

Question 5

ENDOTHERMIC AND EXOTHERMIC

Answer 5

• the new bond is made between two atoms , energy is needed to form it( cooler than surroundings)
• When a bond is broken and atoms are
  released, the energy in the bond is released
  as well (EXOTHERMIC REACTIONS)

Question 6

Aerobic respiration

Answer 6

Aerobic Respiration:
• Uses oxygen to release energy from
glucose,
• can only take place inside cells.
• Where?
• does the work of cells, tissues

Question 7

Anaerobic respiration

Answer 7

robic Respiration:
Usage of energy without oxygen uses up energy faster than the body
can take in oxygen through breathing
Occurs in striated muscle during vigorous exercise such as 100m
sprint
• Bi-product is lactic acid,
• the body can only tolerate certain levels before enzyme conversion becomes
impossible.
• Anaerobic energy is less efficient and produces less energy.

Question 8

Respiration word equation

Answer 8

Glucose + oxygen =water + carbon dioxide + energy (ATP)

Question 9

what is the law of conersation of energy

Answer 9

according to this law , energy can neither be created or destryoed , however it can be transformed from one form into another, forms invlude chemical heat and sond energy

Question 10

what is metablism

Answer 10

the body converts ingested food into the chemicals and energy it needs to grow and function