WorksheetsThe Human Body
Total questions: 12
Worksheet time: 3hrs 0mins
What happens during a chemical reaction?
The state of matter of a substance changes
Bonds are broken and new bonds form
The chemical structure of a substance stays the same
Temperature remains the same
Which of the statements is not true about compounds?
They are substances made of 2 or more elements
They can be made by binding elements together in 2 different ways
Sodium bicarbonate is an example of a compound
They are the basic units that make up chemicals
How does water help the body obtain ionic substances?
It is able to keep the ionic substance together and prevent a chemical reaction from occurring so that your body can get nutrients.
It is able to absorb the ionic substance in a way that allows the positive ions to bond with the hydrogen and the negative ions to bond with the oxygen.
It is able to easily dissolve them because the positive ions are attracted to the oxygen and the negative ions are attracted to the hydrogen.
It is able to change the temperature of the ionic substance in a way that allows your body to take it in.
In science, what does it mean for a compound to be organic?
It contains carbon and other elements
It was grown without chemicals
It is free-range
It is natural
What are macromolecules?
Substances that form from joining many small molecules together.
Inorganic, non-soluble substances made of ionic bonds.
Substances that are found only in your body's skeletal system.
Substances that come together to form different kinds of rocks.
Which of the following is not true about carbohydrates?
Carbohydrates are formed when simple sugars, called monosaccharides, are joined together.
Sugars, starches, and cellulose are carbohydrates.
Carbohydrates are the body's main source of energy.
Carbohydrates give cells structure and help them communicate.
What do lipids do for your body?
They are macromolecules that store information used by the body to perform different functions.
They help insulate the body and are a major part of cell membranes.
They are the body's major source of energy.
They give cells structure, help cells communicate, and some are enzymes.
What are the building blocks of proteins?
Nucleotides
Monosaccharides
Amino acids
Ionic bonds
Which macromolecule is made of nucleotide polymers?
Carbohydrates
Lipids
Nucleic acid
Proteins
Where in the cell is DNA stored?
Nucleus
Mitochondria
Cytoplasm
Chloroplast
What are tissues made of?
Red blood cells
Cholesterol and other types of lipids.
Amino acids and nulceotides.
Groups of cells that work together and perform a function.
Which of the following is not an organ?
Muscle
Lungs
Spleen
Liver
