$CATEGORY: Science - Khan Academy/7.Control and Coordination/7.Control and Coordination--Hormones in animals

//Multiple Choice

Hormones are secreted by which of the following? {
    ~Neurons
    =Endocrine glands
    ~Exocrine glands
    ~Blood cells
}

What is the role of hormones in the human body? {
    ~To produce energy
    =To regulate physiological processes
    ~To transport oxygen
    ~To digest food
}

Which of the following is an example of a steroid hormone? {
    ~Insulin
    ~Adrenaline
    =Estrogen
    ~Thyroxine
}

Hormones are transported to target organs through the __________. {
    ~Lymphatic system
    ~Nervous system
    =Bloodstream
    ~Digestive system
}

Which of the following is NOT a characteristic of hormones? {
    ~They act on specific target organs.
    ~They are released into the bloodstream.
    =They provide instant energy.
    ~They work in very small amounts.
}

//True or False

Hormones are secreted directly into the bloodstream. {T}

All hormones act on all organs in the body. {F}

The pituitary gland regulates the functioning of other endocrine glands. {T}

Hormones are transported through the lymphatic system. {F}

The effects of hormones are always short-lived. {F}

//Fill in the blanks

Hormones are chemical messengers secreted by __________ glands. {
    =Endocrine
    ~Exocrine
    ~Sweat
}

The __________ hormone controls the fight-or-flight response. {
    ~Insulin
    =Adrenaline
    ~Thyroxine
}

Hormones are secreted in __________ amounts. {
    ~Large
    =Small
    ~Variable
}

The target organ for a hormone depends on the presence of specific __________ on the cells. {
    ~Enzymes
    =Receptors
    ~Proteins
}

The __________ system regulates the production and release of hormones. {
    ~Nervous
    =Endocrine
    ~Digestive
}

//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Insulin -> Regulates blood glucose levels
=Adrenaline -> Fight-or-flight response
=Thyroxine -> Thyroxine
=Estrogen -> Regulates female reproductive functions
=Receptors -> Recognize specific hormones on target cells
}


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