Bio 106 QUIZ QUESTIONS #3

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Embryonic cells that have the potential to become any cell type are called

stem cells

The tissue that lines internal surfaces of the body is

epithelial

What type of tissue is blood?

connective

Which of the following represents the correct hierarchy of organization in the human body?

-cells —> tissues —> organs —> organ systems

Maintaining the volume and composition of body fluids is the direct responsibility of which system?

urinary

What we usually call the "back" of the human body is really the

posterior

The nervous system is produced by

the ectoderm

Which of the following functions can the skin perform?

all of the above

UV light is necessary for the production of which vitamin?

vitamin D

Four of the five answers below pertain to smooth muscle, select the exception

voluntary

The basic unit of the nervous system is

neuron

The resting potential of a neuron is approximately

-70 millivolts

Which is a junction between two neurons?

chemical synapse

All nerves that conduct impulses away from the central nervous system are

motor only

Active chemicals found in chocolate, tea, coffee, and soft drinks are examples of which of the following?

stimulant

A stretch receptor is classified as a

mechanoreceptor

Receptors in the human nose are

chemoreceptors

The sense of equilibrium can detect

all of these

Eyes are

photoreceptors

The part of the eye that may be colored (for example, brown, blue, green, or gray) is the

iris

Which of the following act as signaling molecules?

hormones, neurotransmitters, and pheromones

Hormones are distributed throughout the body by the

blood system

Which gland secretes hormones that affect other endocrine glands?

pituitary


The molting hormone of insects is:ecdsyone

Which organisms have a hydrostatic skeleton with a soft body wall?

sponges

Which organisms have a somewhat rigid internal skeleton and many muscles?

vertebrates

The mineral stored in greatest quantity in bones is

calcium

Bones in fingers or toes are called

phalanges

The body's strongest weight-bearing bone is the

femur

Which of the following muscle pairs are antagonistic?

bicepts and tricepts

Four of the five answers listed below are energy sources for muscles, Select the exception.

sacromeres.

The main energy for prolonged muscle work comes from:

aerobic respiration of carbohydrates and fats

The pectoralis major muscle is located:

chest

The most immediate, but necessarily limited, source of energy for reformation of ATP in muscle cells is:

creatine phosphate

A goiter is an enlarged form of which gland?:

thyroid

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