The Chem: Basis of life review

At what level does biological function start according to the provided learning material?

• Cellular level

• Chemical level

• Tissue level

• Organ level

Which of the following is an example of an organ as shown in the diagram?

• Actin

• Myofibril

• Muscle cell

• Flight muscle of a moth

What is the correct hierarchy of the lower levels of life from the smallest to the largest as depicted in the diagram?

• Atom, Molecule, Organelle, Cell and tissue, Organ

• Molecule, Organelle, Cell and tissue, Organ

• Organ, Cell and tissue, Organelle, Molecule

• Molecule, Cell and tissue, Organelle, Organ

Which molecule is specifically mentioned in the diagram as being part of muscle cells?

• DNA

• Hemoglobin

• Actin

• Glucose

What is the function of myofibrils as indicated in the learning material?

• They are found only in muscle cells.

• They are responsible for transporting oxygen.

• They are involved in the immune response.

• They store genetic information.

What is the definition of an element?

• A substance that consists of multiple types of atoms

• A substance that can be broken apart by chemical processes

• A substance that consists of one type of atom only

• A substance that is made up of molecules

Who discovered the first element by scientific enquiry and what was the element?

• Antoine-Laurent Lavoisier, oxygen

• Hennig Brand, phosphorus

• Dmitri Mendeleev, hydrogen

• Marie Curie, radium

How many elements were listed by Antoine-Laurent Lavoisier in the 1780s?

• 10 elements

• 28 elements

• 63 elements

• 118 elements

How many elements were known in 1869?

• 28 elements

• 63 elements

• 92 elements

• 118 elements

How many elements are known today?

• 63 elements

• 92 elements

• 118 elements

• 150 elements