2023 Biology S1 Review

Front

What is the cell theory?

Back

The cell theory states that: 1) All living things are composed of one or more cells, 2) Cells are the basic unit of structure and function in living organisms, 3) All cells arise from pre-existing cells.

Front

What is a key statement that is NOT part of the cell theory?

Back

All cells have a nucleus.

Front

What is competition in ecology?

Back

Competition occurs when two or more species or populations vie for the same resources in an ecosystem, such as food, space, or light.

Front

What is the role of autotrophs in the carbon cycle?

Back

Autotrophs use carbon dioxide to produce glucose through photosynthesis.

Front

What are the reactants of cellular respiration?

Back

Sugar and oxygen (O2).

Front

Define commensalism in ecology.

Back

Commensalism is a type of symbiotic relationship where one species benefits while the other is neither helped nor harmed.

Front

What is mutualism?

Back

Mutualism is a symbiotic relationship where both species benefit from the interaction.

Front

What is parasitism?

Back

Parasitism is a relationship where one organism benefits at the expense of another, harming it in the process.

Front

What is the basic unit of life?

Back

The cell is the basic unit of life.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.