Life Functions 2

Stained yeast were added to a paramecium culture, and some of the yeast were ingested (taken in) by the paramecia. This activity is most closely associated with which life function?

• synthesis

• regulation

• Nutrition

• growth

The life function of transport in an organism directly involves those activities used to:

• absorb and distribute (move) materials

• Obtain (get) and hydrolyze (breakdown) materials

• release energy from food

• Produce (make) cellular waste products

Which term includes all the activities required to keep an organism alive?

• growth

• excretion

• metabolism

• nutrition

Small molecules are combined (joined) to form (make) large molecules by the life function of

• regulation

• excretion

• transport

• synthesis

The passage of the end products of digestion (breakdown) INTO the cells of an organism is an example of

• absorption

• digestion

• circulation

• regulation

When a person's level of physical activity changes, the circulatory system supplies body cells with amounts of nutrients (use able form of food) and oxygen that are appropriate (enough) to sustain (keep) the new level of activity. This statement illustrates the concept of

• homeostasis

• excretion

• synthesis

• circulation

Excretion is best described as the removal of

• metabolic wastes from a cell

• absorb and distribute (move) materials

• undigested material from the digestive tract

Organisms that obtain (get) and ingest (take in) for their nutrition because they can NOT make their own food are classified as:

• autotrophs

• Multicellular

• heterotrophs

Which phrase best describes cellular respiration, a process that occurs (happens) continuously (all the time) in the cells of organisms?

• removal of oxygen from the cells of an organism

• transport of materials within cells and throughout the bodies of multicellular organisms

• Make energy (ATP) from food

Which term below includes the others?

• growth

• excretion

• metabolism

• nutrition