Scientific Method / Life Processes Review (Living Environment)

The absorption and distribution of materials within an organism is a life function known as

• Synthesis

• Reproduction

• Transport

• Locomotion

Which life process is indicated by the arrows in the diagram of an amoeba shown below.

• digrestion

• excretion

• fermentation

• transport

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

By which process is the potential energy of organic molecules transferred to a form of energy that is usable by the cells?

• digestion

• hydrolysis

• photosynthesis

• respiration

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

• Metabolism

• Nutrition

• Regulation

• Synthesis

Which reactions in the list below are associated with metabolism?

(A) cellular reactions that release energy

(B) photosynthetic reactions that store energy

(C) muscle reactions that use energy

• A and B only

• B and C only

• A and C only

• A, B, and C

Living organisms can best be distinguished from nonliving things by determining the presence or absence of

• carbon atoms

• oxygen atoms

• metabolic activities

• chemical reactions

In which process are simple materials chemically combined to form more complex materials?

• Synthesis

• hydrolysis

• growth

• respiration

Increased concern over the number of heat-related illnesses among football players has led to a possible change in uniform design. Shoulder pads were designed that constantly blew cool, dry air underneath the shoulder pads. Tests showed that the use of the device during rest and recovery periods resulted in a reduction of body temperature and heart rate. This new device would help the athlete to

• control the rate of muscle activity

• increase muscle strength

• maintain homeostasis

• eliminate the release of heat from the body

When the human body is responding to stress, the hormone adrenaline is released. A short time later, the body returns to normal. This is an example of how a human

• reacts to antibody

• develops genetic variation in body cells

• maintains cellular organization

• maintains dynamic equilibrium