Download Grade 7 Trimester 2 Science Exam Overview Vocabulary Nutrients

Grade 7 Trimester 2 Science Exam Overview
Vocabulary
 Nutrients
 Metabolism
 Digestion
 Absorption
 Mechanical digestion
 Chemical digestion
 Epiglottis
 Peristalsis
 Rectum
 anus
 Cardiovascular
system
 Heart
 Atrium
 ventricle
 valve
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artery
vein
capillary
vena cava
pulmonary artery
pulmonary vein
red blood cell (RBC)
white blood cell
(WBC)
respiratory system
breathing
respiration
trachea
alveoli
diaphragm
mucus
cilia
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excretion
urine
ureters
nephrons
urethra
inflammatory
response
immune response
pathogen
antibody
antigen
T cells
B cells
neurons
negative feedback
sperm
egg
6 Nutrients/Digestive System
 What are the six nutrients?
 What are the primary functions of each of the 6 nutrients?
 Define metabolism.
 What is the primary function of the digestive system?
 What is the path of food as it travels through the digestive system?
 Where does the digestion of proteins start and end?
 Where does the digestion of carbohydrates start and end?
 Where does the digestion of fats start and end?
 What are the functions of the digestive juice in the stomach?
 What is the importance of villi in the small intestines?
 What is absorbed in the small intestines?
 What is absorbed in the large intestines?
Circulatory System
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Know the chambers and structures of the heart (see diagram below).
What is the path of blood through the heart and the body?
Why are arteries thicker than veins?
What is the primary function of red blood cells?
What are the two best places to feel your pulse?
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What are two substances the blood delivers to body cells?
What is one substance that body cells give to blood as waste?
Name one way that blood is moved through your veins.
What prevents blood from flowing backwards?
Why does your heart rate increase when you exercise?
Respiratory System
 Be able to label the parts of the respiratory system (see below)
 Why does your body need oxygen?
 What are the major organs of the respiratory system?
 What is the difference between breathing and respiration?
 What is the path of air through your body?
 What is the combined function of cilia and mucus in your nose and throat?
 What keeps your windpipe open?
 How does gas exchange occur in the alveoli?
 How does the diaphragm control inhalation and exhalation?
 Why does your breathing increase when you exercise?
Excretory System
 What are the two major organs of the excretory system?
 What is the primary function of the kidney?
 What are the mini filtering factories in kidneys called?
 Where is your urine stored in your body?
 If your urine is clear-yellow, what might that indicate?
 If your urine is dark yellow, what might that indicate?
 If there are high levels of glucose in your urine, what might that indicate?
 If there are high levels of protein in your urine, what might that indicate?
Immune System
 What are the body’s three lines of defense against disease?
 What is the inflammatory response?
 What is the immune response?
 What is the role of phagocytic WBC?
 What do B cells do?
 What do T cells do?
Endocrine System
 What is the primary role of the endocrine system?
 What is negative feedback?
Nervous System
 What are neurons?
Reproductive System
 What are the male sex cells called?
 What are the female sex cells called?
 What is the primary function of the reproductive system?