Miracle machine Year 9 Yearly
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
What are all living thing made out of
Cells
What does multicellular
Composed of many cells
What do red blood cells do
Carry oxygen through the body
What do nerve cells
They relay messages from one part of the body to another
What is tissue made of
A group of similar cells
What are organ made of
Each organ is made of a specific type of tissue
What do organs do
Organs are parts of systems and allow them to work
What are systems made of
Organs form parts the parts of a system
What do systems do
They work together to keep the organism alive
List all the systems in the body(10)
• Respiratory • Nervous • Digestive • Excretory • Skeletal • Muscle • Endocrine • Reproductive • Circulatory • Immune
Which two systems make the body function
Nervous and endocrine
List some examples of tissue(4)
• Tendon • Muscle tissue • cartilage • ligament
List some examples of cells(2)
• Blood cells - neurones
List some examples of organelles(6)
• mitochondria • chloroplast • nucleus • vacuole • lysosomes • ribosome
How does the respiratory system get oxygen into the blood stream (4)
• The oxygen is taken in through mouth or nose • Travels through trachea,bronchi and bronchioles • Enters the lungs • Oxygen is the diffused into the blood stream
How does the circulatory system move oxygenated blood to the cells(4)
• the oxygenated blood travels to the pulmonary vein to the heart • is taken through aorta out of the heart • the blood is taken into smaller blood vessels • goes into capillaries and the oxygen diffuses into the fluid surrounding the cells.
What does the digestive system do(2)
• breaks down food - substances are diffused into the blood of the capillaries on the villi which are located in the small intestines
What does the excretory system do(1)
-The elimination of waste produced by homeostasis
What are enzymes
The proteins that regulate chemical reactions in the body
What is homeostasis
The process that need to be kept constant in the human body
What does homeostasis regulate (6)
• Body temperature • sugar levels • hydration • oxygen levels • salt levels • acid/base levels
Which system regulates homeostasis
The nervous system
The steps of negative feedback
• a change in the body is elected • a message is sent to a gland or organ • a response is initiated returning it to a normal state
What is negative feedback
The process of returning things to a normal state