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ch 1 Intro
Intro for BIO
Question | Answer |
---|---|
Most of the terminology to name and describe body parts and their functions comes from | Latin and Greek. |
An investigator who conducts an experiment to determine how temperature changes affect the rate at which the heart beats is most likely a(n) | . physiologist. |
Anatomy and physiology are difficult to separate because | anatomical structures determine which functions are possible. |
The activities of an anatomist consist of ______, whereas those of a physiologist consist of _____. | observing body parts; studying functions of body parts |
The term "anatomy" means | a cutting up. |
The term "physiology" means | mechanisms of action in the body. |
Which of the following is not true of organelles? | They are only in cells of humans. |
Which of the following lists best illustrates the idea of increasing levels of complexity? | Organelles, cells, tissues, organs, organ systems |
In all organisms, the basic unit of structure and function is | the cell. |
Specialized cell types organized in a way that provides a specific function form | tissues, which build organs. |
Simple squamous epithelium is an example of a(n) | tissue. |
Assimilation is | changing absorbed substances into different chemical forms. |
The ability of an organism to sense changes in its body illustrates | responsiveness. |
Which of the following characteristics of life and their descriptions | Circulation the movement of substances in body fluids |
Physical and chemical changes or reactions in the body are collectively known as | metabolism. |
Which of the following processes does not help to maintain the life of an individual organism? | Reproduction |
Which of the following processes is necessary to ensure the continuation of the human species? | Reproduction |
Homeostasis is the | . tendency of the body to maintain a stable environment. |
Which of the following is not an example of a homeostatic mechanism in the human body? | pulling blankets over yourself when cold at night. |
How do living organisms use oxygen? | To release energy stored in the molecules of food. |
Maintaining a stable internal environment typically requires | negative feedback |
A blood clot stimulating further clotting is an example of | positive feedback. |
Which is a factor that the human body must obtain from the environment in order to survive? | Water |
Homeostasis exists if concentrations of water, nutrients, and oxygen in body parts and heat and pressure __________. | remain within certain limited ranges |
Homeostatic mechanisms are said to act by negative feedback because changes away from the normal state | stimulate changes in the opposite direction. |
Positive feedback mechanisms | move conditions away from the normal state. |
Which of the following illustrates positive feedback control? | Maintaining blood pressure |
Positive feedback mechanisms usually produce | unstable conditions. |
Which of the following organs is in the abdominopelvic cavity? | The kidneys |
The membrane on the surface of a lung is called the | visceral pleura. |
Which of the following is not part of the female reproductive system? | The bulbourethral gland |
The thoracic cavity lies _____________ to the abdominopelvic cavity. | superior |
In organs of which system are blood cells produced? | Skeletal |
A parietal layer of serous membrane _______, whereas a visceral layer of a serous membrane ________. | lines cavities; covers organs |
Cell death first occurs | in the fetus |
Wrinkled and sagging skin results from | loss of subcutaneous fat and less elastin and collagen. |
Signs of aging at the cellular level are | impaired cell division and the ability to break down and recycle worn cell parts |
An anatomical section that separates the body into right and left portions is a __________ section. | sagittal |
The upper midportion of the abdomen is called the ____. | Epigastric |
Two anatomical terms that refer to features near the surface are | superficial and peripheral. |
Which of the following are vital signs? | Body temperature, blood pressure, and pulse rate |
Magnetic resonance imaging might be used to | .distinguish between normal and cancerous tissue. |
stem cells | 1-divide and renew themselves 2-remain undifferentiated in form 3-develop into a variety of specialize cell |
growing into any cell type and has the ability to create a human | Totipotent |
a cell that can divide and give rise to any cell type is | Totipotent |
Apoptosis is also known as | programmed cell death |
Lucky people who cannot be infected with HIV are protected because | their cells lack receptors that admit the virus |
Adrenoleukodystrophy is caused by a deficiency of a protein in the outer membrane of | peroxisomes |