Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
bChapter 2 Science
Did you try the medicine drug?
| Question | Answer |
|---|---|
| Digestive system | Breaks down food and absorbs nutrients. Consists of the mouth, oesophagus, stomach, small intestine and large intestine. |
| Mechanical digestion | Physically breaks down food (e.g. chewing, muscle contraction) |
| Chemical digestion | Enzymes breaking molecules into smaller parts |
| Respiratory system | Gets oxygen from the air when inhaling and removes waste gases when exhaling. Delivers blood to the bloodstream. |
| Oxygen is essential for... | Aerobic cellular respiration, which releases ATP energy for cell processes |
| Rib cage | Surrounds the lungs and protects them. Muscles in between assist with raising the ribcage up and down when breathing. |
| Diaphragm | A muscle that separates the lungs from the abdomen and works by contracting to increase volume in the chest cavity when inhaling. |
| Inhalation through the nose | When air is breathed in, it comes mostly in the nose, where it is warmed, moistened and cleaned within the nasal cavity. Large dust particles are filtered by hairs in the nose. Smaller particles and some bacteria are trapped by cilia. |
| Gas exchange from trachea to alveoli | Air passes down the trachea, which divides into two bronchi. The bronchi divides into even smaller tubes called bronchioles, which end in clusters of sacs called alveoli, which is covered in capillaries where gas exchange occurs. |
| Circulatory system | Transports oxygen, carbon dioxide, glucose and other nutrients to and from cells. It is composed of the heart, blood vessels and blood. It is a double system. (lungs and body) |
| Blood carries: | Oxygen, nutrients, water, wastes such as CO2 and urea |
| Heart | A four chambered organ made of cardiac muscle that doesn't get tired |
| Septum | Thick wall of muscle that separates the left and right sides of the heart, preventing oxygenated and deoxygenated blood from being mixed |
| What happens when plaque builds up in coronary arteries? | The width of blood vessels are reduced, reducing the supply of blood to heart muscles. This stops the mitochondria from producing energy and the heart muscle tissue cannot pump blood, leading to a heart attack. |
| Bronchioles contain special cells called... | Epithelial cells that have cilia that sweep any dust and debris |
| Trachea | A tube with thin walls which are reinforced with rings made of cartilage, preventing your trachea from collapsing as you breathe in |
| Root system | Absorbs water and minerals; anchors plant |
| Shoot system | Stems, leaves and flowers; processes such as photosynthesis and reproduction |
| Transport system (vascular) | Moves materials around the plant |
| Xylem | Transports water and minerals upwards from roots to leaves |
| Phloem | Transports sugars (glucose/sucrose) from sources (leaves) to sinks |
| Examples of sinks | Growing parts, roots, fruits |
| Tube like tissues allow... | Long-distance transport |
| Photosynthesis | Chlorophyll captures sunlight energy. This energy is used to split water molecules and carbon dioxide is used to create glucose for the plant. Oxygen is also created as a by-product, which is released into the atmosphere via stomata. |
| Transpiration | Evaporation of water from leaves |
| The higher the temperature or air flow is... | The higher the rate of transpiration |
| The rate of transpiration decreases when... | The surrounding air is humid (moist) |
| How do roots efficiently absorb water? | Root hairs on the outer layer increase the surface area for water uptake. |
| Stomata | What allows gas exchange to occur, mainly carbon dioxide to enter the plant and for oxygen to be released by the plant |
| Autotroph | Can make their own energy |
| Heterotroph | Needs to consume their energy from other sources |
| What do cells use to do cellular respiration? | Glucose |
| Cellular respiration | A series of chemical reactions that break down glucose to produce ATP |
| Vascular tissues | Moves substances to areas that need specific nutrients, gases and other molecules |
| Flow of blood from the right ventricle | Right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta, body, vena cava, right atrium, right ventricle |
| Causes of organ dysfunction | Genetic, infection, lifestyle choices, poor diet, environmental, unknown |
Created by:
thesomething