science topic 1 Flashcards
(38 cards)
what are the 7 main food nutrients
carbs, proteins, fat, fibre, vitamins, minerals, water
what is calcium found in
milk products
what is iron found in
meat beans lentils
what is sodium found in
canned meat fish
what are cells
cells are building blocks that make u live
what are tissues
tissues are groups of cells
what is an organ system and give an example
it is made up of a group of different organs an example is respiratory system
where does the air u breath go
it goes to the trachea
what are the 2 tubes called
bronchi and bronchus
what are the small air sacs in the lungs called
they are called alveoli
what is a diaphram
it is a muscle that is under the ribcage
what is tar
tar is the cause of cancer in the lungs mouth and throat
what is nicotine
nicotine is adictive and it causes smokers to want more cigarets
what is carbon monoxide
it is a gas that replaces oxygen in red blood cells
how much does the heart beat every day
100k times
what are capillaries
they are thousands of narrow tubes that join arteries to the veins
what are white blood cells
they are cells that fight of infections and bacteria
what are red blood cells
they are cells that carry nutrients oxygen and waste around the body
what are platelets
they help the body to cloth so that scars heal quicker
what is a plasma
it is the liquid that carries the whit blood cells the red blood cells and the platelets
what is a microbe
it is a small organism that can only be seen with a microscope
what are some types of bacteria
good bacteria example yoghurt or harmful bacteria example salmunella
what is the immune system made up of
it is made up of special cells tissues proteins and organs
