Science CBA review

What is the difference between an element and a compound?

• An element is a pure substance represented by a chemical symbol, while a compound is a pure substance represented by a chemical formula.

• An element is a pure substance represented by a chemical formula, while a compound is a pure substance represented by a chemical symbol.

• An element is a mixture of substances, while a compound is a single substance.

• An element is a single substance, while a compound is a mixture of substances.

What is the definition of heredity?

• The passage of genetic instructions from one generation to the next generation.

• The process of genetic material found in genes within chromosomes.

• The study of genetic traits in individuals.

• The transformation of genetic material into chromosomes.

Which organelle is responsible for transforming radiant energy from the Sun into chemical energy through photosynthesis?

• Mitochondrion

• Chloroplast

• Nucleus

• Vacuole

What is the main function of the cell membrane?

• To provide structure and support to the cell.

• To control the movement of substances in and out of the cell.

• To store genetic material.

• To produce energy for the cell.

What force influences the direction of root growth in plants, also known as gravitropism?

• Wind

• Gravity

• Light

• Heat

What is the process by which plants convert light energy into chemical energy?

• Respiration

• Photosynthesis

• Transpiration

• Decomposition

What is the function of the mitochondria in a cell?

• To control the movement of substances in and out of the cell.

• To provide structure and support to the cell.

• To produce energy for the cell.

• To store genetic material.

What is the term for the genetic makeup of an organism?

• Genotype

• Phenotype

• Chromosome

• Gene

What is the function of the nucleus in a cell?

• To control the movement of substances in and out of the cell.

• To provide structure and support to the cell.

• To store genetic material.

• To produce energy for the cell.

A change where one or more new substances are created.​ (a)  

• Chemical Change
• Physical Change