RIO SALADO BIO 201 EXAM 2 FULL QUESTION
BANK WITH COMPLETE SOLUTIONS 2026
◉ Levels of structural organization (in order of increasing
complexity) Answer: 1) Chemical Level- At this level atoms, tiny
building blocks of matter combine to form molecules such as water
and proteins.
2) Cellular Level- All cells have some common functions, but
individual cells vary widely in size and shape, reflecting their unique
functions in the body.
3) Tissue Level- Tissues are groups of similar cells that have a
common function
4) Organ Level- Organs are made up of different tissues.
5) Organ (System) level- Organ systems consist of different organs
that work together closely.
6) Organismal Level- The human organism is made up of many
organ systems.
◉ 11 Organ systems of the body (major functions) Answer: 1)
Integumentary System- Forms the external body covering.
2) Skeletal System- Protects and supports body organs.
3) Muscular System- Allows manipulation of the environment,
locomotion, and facial expressions.
, 4) Lymphatic System- Picks up fluid leaked from blood vessels and
returns it to the blood
5) Respiratory System- Keeps blood constantly supplied with oxygen
and removes carbon dioxide.
6) Digestive System- Breaks down food into absorbable units that
enter the blood for distribution to body cells.
7) Nervous System- Fast acting control system of the body.
8) Endocrine System- Glands secrete hormones that regulate
processes such as growth, reproduction, and nutrient use.
9)Cardiovascular System- Blood vessels transport blood, which
carries oxygen, carbon dioxide, nutrients , wastes, etc.
10) Urinary System- Eliminates nitrogenous wastes from the body.
11) Reproductive System- Overall function is production of
offspring.
◉ Negative and Positive Feedback Mechanisms Answer: Negative
Feedback Mechanisms- In these systems, the output shuts off the
original stimulus or reduces intensity. Examples: Regulation of body
temperatures; Withdrawal Reflex in which the hand is jerked away
from a painful stimulus such as a broken glass; As blood volume
drops, the hypothalamus of the brain is stimulated to release ADH to
the blood.
Positive Feedback Mechanisms- The result or response enhances the
original stimulus so that the activity is accelerated. Examples:
BANK WITH COMPLETE SOLUTIONS 2026
◉ Levels of structural organization (in order of increasing
complexity) Answer: 1) Chemical Level- At this level atoms, tiny
building blocks of matter combine to form molecules such as water
and proteins.
2) Cellular Level- All cells have some common functions, but
individual cells vary widely in size and shape, reflecting their unique
functions in the body.
3) Tissue Level- Tissues are groups of similar cells that have a
common function
4) Organ Level- Organs are made up of different tissues.
5) Organ (System) level- Organ systems consist of different organs
that work together closely.
6) Organismal Level- The human organism is made up of many
organ systems.
◉ 11 Organ systems of the body (major functions) Answer: 1)
Integumentary System- Forms the external body covering.
2) Skeletal System- Protects and supports body organs.
3) Muscular System- Allows manipulation of the environment,
locomotion, and facial expressions.
, 4) Lymphatic System- Picks up fluid leaked from blood vessels and
returns it to the blood
5) Respiratory System- Keeps blood constantly supplied with oxygen
and removes carbon dioxide.
6) Digestive System- Breaks down food into absorbable units that
enter the blood for distribution to body cells.
7) Nervous System- Fast acting control system of the body.
8) Endocrine System- Glands secrete hormones that regulate
processes such as growth, reproduction, and nutrient use.
9)Cardiovascular System- Blood vessels transport blood, which
carries oxygen, carbon dioxide, nutrients , wastes, etc.
10) Urinary System- Eliminates nitrogenous wastes from the body.
11) Reproductive System- Overall function is production of
offspring.
◉ Negative and Positive Feedback Mechanisms Answer: Negative
Feedback Mechanisms- In these systems, the output shuts off the
original stimulus or reduces intensity. Examples: Regulation of body
temperatures; Withdrawal Reflex in which the hand is jerked away
from a painful stimulus such as a broken glass; As blood volume
drops, the hypothalamus of the brain is stimulated to release ADH to
the blood.
Positive Feedback Mechanisms- The result or response enhances the
original stimulus so that the activity is accelerated. Examples:
