Body Systems/Chemistry/Homeostasis

Question 1

What is the Organismal level?

Answer 1

The highest level where all systems function together in one body.

Question 2

What are the 11 Organ Systems in the human body?

Answer 2

1. Muscular
2. Urinary
3. Respiratory
4. Digestive
5. Endocrine
6. Reproductive
7. Skeletal
8. Lymphatic
9. Integumentary
10. Nervous
11. Circulatory

Question 3

What is the Extracellular fluid made of?

Answer 3

The fluid outside the cell includes both intercellular fluid and plasma.

Question 4

What are the 4 types of tissue?

Answer 4

1. Epithelium
2. Connective
3. Muscle
4. Nervous

Question 5

All Organ Systems work together to maintain

__________.

Answer 5

All Organ Systems work together to maintain

Homeostasis.

Question 6

What is the “Circular Pathway of Information Transfer”?

Answer 6

Receptor in body to CNS to effector in body.

Question 8

Non-living atoms form Molecules and Compunds which make:

Answer 8

Carbohyderates

Lipids

Proteins

Nucleic Acids

Question 9

What is Conductivity?

Answer 9

The ability to communicate effects from stimuli from one cell to another.

Question 10

What is the basic ______ and _______

unit of life.

Answer 10

A cell is the basic structural and

functional unit of life.

Question 11

The Positive Feedback Control ________ or __________ original condition.

Answer 11

The Positive Feedback Control intensifies or accelerates original condition.

• Moves condition farther away from normal

destabilizing; short duration

Examples: Uterine contractions, blood clotting, nerve impulses.

Question 12

Homeostasis is monitored and regulated by:

Answer 12

1. Nervous System (fast)
2. Endocrine System (slow)
3. Temperature, Pressure, Chemical Connections and pH

Question 13

What type of structure is “Eukaryotic”?

Answer 13

A Eukaryotic structure is an organelle specialized as DNA.

Question 14

What are the 5 parts to the Reflex Feedback Loop>

Answer 14

1. Receptors - detect stimuli
2. Sensory Pathway - Neurons
3. Integration (CNS) - brain
4. Motor Pathway - transmits impulses to effectors
5. Effectors- carry our response.

Question 15

What is Homeostasis?

Answer 15

Maintenance of stable conditions in the internal environment of the body.

Question 16

What is an Organelle?

Answer 16

1. located in cytoplasm.
2. structures in cells that carry out specific cellular functions.

Question 17

What is plasma?

Answer 17

Fluid in the blood.

Question 18

What is Homeostasis?

Answer 18

maintains values/amounts around normal value (or range of values).

Question 19

What is “Excitability”?

Answer 19

The body’s systems ability for receptors to receive responds to stimuli.

Question 20

What is Tissue?

Answer 20

Groups of cells performing a related function.

Question 21

What is the Negative Feedback Loop using Glucose and Insulin

Answer 21

• Average Blood Glucose (95/mg glucose/100ml blood)
• Pancreases produces insulin
• Insulin - decreases BGL when too high; just eaten
• Liver removes glucose from blood - decreases GBL
• Liver stores glucogen until needed
• Liver breaks glucogen down into Glucose
• Liver releases Glucose into blood

Question 22

What are the 6 levels of Biological Organization:

Answer 22

1. Chemical
2. Cell
3. Tissue
4. Organ
5. Organ System
6. Individual (Organism)

Question 23

What is the simplest lifeform at the chemical level?

Answer 23

The Atom

Question 24

How are compounds different?

Answer 24

They have 2 or more different atoms.

(combination of elements)

Question 25

What tissue connects receptors to the (CNS) Central Nervous System?

Answer 25

Nerve Tissue.

Question 26

What is located in the Intracellular fluid compartment?

Answer 26

Cytoplasm - fluid inside the cells

Question 27

What is “Responsiveness”?

Answer 27

The ability to respond to changes in environment.

Question 28

What is “Contractility”?

Answer 28

The ability to contract (shorten) for movement. Muscles move the body or substances through the body.

Question 29

Only non-living level atoms form ______

and ______.

Answer 29

Only non-living atoms form molecules

and compounds.

Question 30

What are the building blocks of the atom?

Answer 30

Proton

Neutron

Electron

Question 31

What is Differentiation?

Answer 31

How cells become specialized for a particular function.

Question 32

What is Intercellular Fluid?

Answer 32

The fluid surrounding the cells in tissue.

Question 33

What is an Organ System?

Answer 33

11 interdependent/interconnected systems that carry out particular functions.

Question 34

What characterizes the body’s internal

fluid environment?

Answer 34

Fluid surrounding cells of tissue in the body.

• Fluid forms from blood plasma and cells.
• Fluid contains dissolved substances.

Question 35

What is an organ?

Answer 35

Composed of 2 or more tissues (usually all 4); organs carry out a specific function.

Question 36

What is the Negative Feedback Loop?

Answer 36

• Most common pathway
• reverses direction of the original condition
• maintains long term stability
• Increases/decreases rate-returns condition to normal

Question 37

What are the 2 fluid compartments of the body?

Answer 37

Intracellular

& Extracellular

Question 38

A cell is the ___________

living structure.

Answer 38

A cell is the smallest

living structure.

Question 39

How are molecules different from atoms?

Answer 39

They have 2 or more of the same atom.

(same element)

Question 40

What are examples of Negative Feedback Loop?

Answer 40

1. Body Temperature
2. Heart Rate
3. Blood Pressure
4. Blood Glucose Level (Av. 95mg/100ml)