nutrients
what is a balanced diet and what is an unbalanced diet?
a balanced diet is when you eat everything or small portions of everything on the food pyramid, and an unbalanced diet is when you only eat some parts of the foot pyramid
the elements on the left of the zig-zag line are called metals. true or false?
true
which of the following is immiscible in water? sand, copper sulfate, salt and sugar
sand
name 1 function of the blood
1. transports digested foods through the blood | 2. transports waste products thru the body. | 3. helps to control the body temperature. | 4. helps protect the body from pathogens, germs. | 5. transports hormones and nutrients around the body.
name the 3 types of muscle cells
smooth, cardiac and skeletal
what are some sources of carbohydrates/starch?
rice, potatoes, sugar, bread, flour, cereal
what is the symbol for the element potassium
K
which of the following methods would NOT be used to separate an insoluble solid and liquid? opt: evaporation, decanting, filtration, chromatography
chromatography
how much percent of the blood is plasma?
55%
what does the muscular system work together with?
the skeletal and nervous system
carbohydrates, proteins, minerals, water, fats & oils, vitamins and water
name 2 properties of a non-metal
dull, poor conductors of eletrcity and heat, non malleable, not ductile, weak and brittle, low melting point: (e.g sulfur: 199 c), low density, not sonorous
liquids that do not mix may be separated by using a....
separating funnel
how much pints of blood does each human being have?
7-10 pints of blood
what is involuntary muscles and voluntary muscles?
involuntary means that we have no control over these muslces. voluntary and muscles that we can control.
what is malnutrition?
it is a general term that refers to medical conditions caused by an improper diet
how many elements are there in the periodic table?
118
sand and gravvel may be separated from eachother through using a....
a sieve
what are 3 things found in plasma?
minerals, hormones and nutrients
what is an example of an antagonistic muscle?
triceps and biceps of the upper arm
what is idiodine used for?
needed for the thyroid gland that heps regulate metabolism
name 10 elements in the periodic table
Lithium, Beryllium, Sodium, Magnesium, Aluminium, Potassium, and Calcium Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorous, Sulphur, Chlorine, and Argon
name another method which can be used to separate and collect the substances in seawater
another method is distillation
what blood group is the universal donor and why?
O- + it can give to any other group
where is the pectoral muscle found on the body?
the chest