MOTIVATION EMOTION AND STRESS
STRESS AND HEALTH
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
1.By starting the “flight or fight response”
|
|
|
By producing white blood cells that destroy disease causing organisms.
|
|
|
By making our heart rate slow down
|
|
|
By helping us relax and clam down
|
Detailed explanation-1: -They do this by recognising substances called antigens on the surface of the microbe, or in the chemicals they produce, which mark the microbe or toxin as being foreign. The antibodies then mark these antigens for destruction. There are many cells, proteins and chemicals involved in this attack.
Detailed explanation-2: -They are attracted towards the infective agents, then surround and engulf them. Once inside the cell, these white cells then release chemicals that break the organism down and destroy it. Other white cells, called lymphocytes, target attacks in another way, by making antibodies.
Detailed explanation-3: -The acquired immune system, with help from the innate system, makes special proteins (called antibodies) to protect your body from a specific invader. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader. The antibodies stay in your child’s body.
Detailed explanation-4: -Lymphocytes are the white blood cells responsible for acquired (specific) immunity, including producing antibodies (by B cells), distinguishing self from nonself (by T cells), and killing infected cells and cancer cells (by killer T cells).
Detailed explanation-5: -(ii) White blood cells produce antibodies. This is one way white blood cells protect us against pathogens.