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Basic Q A
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1
Question
How many chambers does the heart have?
Answer
Four chambers.
2
Question
Which side of the heart contains deoxygenated blood?
Answer
Right side.
3
Question
Which side of the heart contains oxygenated blood?
Answer
Left side.
4
Question
Which chamber does most of the work in the heart?
Answer
Left ventricle.
5
Question
Which organelle is abundant in mitochondria?
Answer
Mitochondria.
6
Question
How many nodes are in the heart and what are they?
Answer
Two nodes: SA and AV.
7
Question
The SA node is responsible for contracting which part?
Answer
The upper (atria).
8
Question
The AV node controls the contraction of which part?
Answer
The ventricles.
9
Question
Why is the septum made?
Answer
To prevent blood from mixing.
10
Question
What is the purpose of heart valves?
Answer
To prevent blood from flowing back.
11
Question
What is the blood pathway through the heart?
Answer
Vena cava, right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta.
12
Question
Where is CO₂ dissolved in the blood?
Answer
Plasma.
13
Question
Where are blood cells produced?
Answer
Bone marrow.
14
Question
What is the main function of the liver?
Answer
Recycle blood.
15
Question
What is the primary function of red blood cells?
Answer
Carry oxygen.
16
Question
What is the main function of white blood cells?
Answer
Protect against infections.
17
Question
What are the two types of white blood cells?
Answer
Phagocytes and lymphocytes.
18
Question
Does the liver produce red blood cells?
Answer
No, it recycles them.
19
Question
Describe the pathway for food from ingestion to elimination.
Answer
Mouth, pharynx, esophagus, stomach, small intestine, large intestine, anus.
20
Question
Which organic compound is digested in the mouth?
Answer
Starch.
21
Question
What enzyme breaks down starch in the mouth?
Answer
Salivary amylase.
22
Question
What is the pH of the mouth?
Answer
7.
23
Question
Is any organic compound digested in the esophagus?
Answer
No.
24
Question
What are the contractions in the esophagus called?
Answer
Peristalsis.
25
Question
What organic compound is digested in the stomach?
Answer
Proteins.
26
Question
What is the gastric pH of the stomach?
Answer
2.
27
Question
Which enzyme digests proteins in the stomach?
Answer
Pepsin.
28
Question
What substance is responsible for stomach acidity?
Answer
HCl.
29
Question
What organic compounds are digested in the small intestine?
Answer
Carbohydrates, proteins, and lipids.
30
Question
Which enzyme digests starch in the small intestine?
Answer
Pancreatic amylase.