Unit 2 Exam Review - Life functions

The absorption of fluids by various cells of the human body is part of the life function known as

• excretion

• transport

• respiration

• growth

The passage of salts into and out of cells is most closely associated with the life process of

• transport

• respiration

• reproduction

• digestion

Nutrition involves those activities by which organisms

• remove cellular waste products

• obtain and process materials needed for other activities

• exchange gases with their environment

• absorb and circulate materials

Which term is defined as all the chemical reactions that are required to sustain (continue) life ?

• metabolism

• nutrition

• regulation

• synthesis

The breathing rate, heart rate, and blood hormone levels of a human would most likely provide information about human

• cellular organization

• inheritance

• nutrition

• metabolism

Enzyme molecules are produced by the life function known as

• egestion

• respiration

• growth

• synthesis

Which activity is an example of the life process known as synthesis

• An organic compound is broken down and energy is released.

• Starch is formed by the chemical bonding of glucose molecules

• A large molecule is broken down into smaller molecules.

• Oxygen moves into a cell through the cell membrane.

Organisms combine simple molecules to form complex molecules by the process of

• ingestion

• synthesis

• regulation

• hydrolysis

During a race, the body temperature of a runner increases. The runner responds by perspiring (sweating), which lowers body temperature. This process is an example of:

• maintenance of homeostasis

• an antigen antibody reaction

• an acquired characteristic

• environmental factors affecting phenotype

Excretion is best described as the removal of

• metabolic waste from a cell

• toxic wastes by the process of cyclosis

• water molecules from dipeptide hydrolysis

• undigested material from the digestive tract