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Globe Showing Europe Africa

Chapter 8 - Environmental Factors & Performance

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Flexed Biceps

Chapter 1 - Musculoskeletal Anatomy

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Woman Lifting Weights

Chapter 2 - Cardio-Respiratory Exercise Physiology

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Peanuts

Chapter 3 - Nutrition & Energy Systems

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Chart Increasing

Chapter 4 - Movement Analysis

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Trophy

Chapter 5 - Skill In Sport

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Bar-Chart

Chapter 6 - Measurement & evaluation of human performance

Chapter 7 - Training to optimize physiological performance

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Pill

Chapter 9 - Non-Nutritional Ergogenic Aids

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Chapter 10 - Individual Differences In Sport

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Fire

Chapter 11 - Motivation In Sport & Exercise

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Grimacing Face

Chapter 12 - Arousal, Anxiety & Performance

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Brain

Chapter 13 - Psychological Skills Training

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Downcast Face with Sweat

Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes

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Stethoscope

Chapter 15 - Physical Activity & Health

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Red Apple

Chapter 16 - Nutrition For Sport & Exercise

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Chart Decreasing

Chapter 17 - Internal Assessment & Practical Work

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Writing Hand

Chapter 18 - Perparing For Your Exams 

<ul>
	<li>All energy comes from the sun in the form of light.</li>
	<li>Plants perform chemical reactions to turn this light energy into stored chemical energy.</li>
	<li>We get our energy from eating plants or eating animals that feed on plants.</li>
</ul>

<ul>
	<li>Our food contains energy stored as carbohydrates, fats, and proteins.</li>
	<li>The main elements in food are carbon, hydrogen, oxygen, and nitrogen.</li>
	<li>When we digest food, our cells chemically release the energy from food molecule bonds.</li>
</ul>

<ul>
	<li>Our cells store the energy released from food as adenosine triphosphate (ATP), which is like a high-powered battery for our muscles.</li>
	<li>ATP provides the energy needed for muscles to contract and create movement.</li>
</ul>

<ul>
	<li>Muscle contraction is only 20% efficient, and about 80% of the energy released during muscle contraction is turned into heat.</li>
	<li>Our bodies need to get rid of this excess heat to prevent overheating.</li>
	<li>The excess heat is transported from our body&#39;s core to the skin, where it can be lost to the environment.</li>
</ul>

<ul>
	<li>Plants converting sunlight into energy is like solar panels converting sunlight into electricity.</li>
	<li>ATP in our muscles is like a rechargeable battery that provides power when we need it.</li>
	<li>When we exercise, our muscles produce heat, and we start to sweat. Sweating is our body&#39;s way of cooling down by releasing excess heat through the skin.</li>
</ul>

✏️📚 Study Tip: Remember that the flow of energy starts with the sun, gets stored in plants, and then gets transferred to us through the food we eat. Our muscles use this energy for movement, but most of the energy is released as heat, which our bodies need to get rid of to stay cool.

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🎉🎈 Fun Fact: Sweating is like your body&#39;s natural air conditioning system! When we sweat, the water on our skin evaporates, which cools us down and helps us stay at a comfortable temperature. So, the next time you&#39;re sweating, remember it&#39;s just your body&#39;s way of keeping you cool!

Unlock The Secrets Of Your Food's Energy Source

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Higher Level

Sports, Exercise & Health Science HL

Chapter 8 - Environmental Factors & Performance

Unlock The Secrets Of Your Food's Energy Source

Table of content

Energy & how it flows 🌞🌱

Food & energy 🍕🥗

Muscles & movement 🏋️‍♂️💪

Unlock the Full Content!

Chapter 8 - Environmental Factors & Performance

Unlock The Secrets Of Your Food's Energy Source

Table of content

Energy & how it flows 🌞🌱

Food & energy 🍕🥗

Muscles & movement 🏋️‍♂️💪

Unlock the Full Content!