Biology topic 2

Question 1

What is the primary function of the digestive system?

Answer 1

To break down food into nutrients for the body.

Question 2

True or False: The heart has four chambers.

Answer 2

True

Question 3

What are the main components of blood?

Answer 3

Red blood cells, white blood cells, platelets, and plasma.

Question 4

Fill in the blank: The __________ carries oxygenated blood away from the heart.

Answer 4

aorta

Question 5

What does CHD stand for?

Answer 5

Coronary Heart Disease

Question 6

Multiple Choice: Which type of blood cell is responsible for fighting infections? A) Red blood cell B) White blood cell C) Platelet

Answer 6

B) White blood cell

Question 7

What is the role of enzymes in the digestive system?

Answer 7

To catalyze biochemical reactions that break down food.

Question 8

True or False: Cancer can develop from uncontrolled cell growth.

Answer 8

True

Question 9

What are the two main types of cholesterol?

Answer 9

LDL (low-density lipoprotein) and HDL (high-density lipoprotein).

Question 10

Fill in the blank: A healthy lifestyle includes regular __________ and a balanced diet.

Answer 10

exercise

Question 11

Short answer: What is the function of platelets in the blood?

Answer 11

To help with blood clotting.

Question 12

What is the main cause of Coronary Heart Disease (CHD)?

Answer 12

Atherosclerosis, which is the buildup of plaque in the coronary arteries.

Question 13

Multiple Choice: Which organ is primarily responsible for detoxifying the blood? A) Heart B) Liver C) Kidney

Answer 13

B) Liver

Question 14

True or False: The small intestine is where most nutrient absorption occurs.

Answer 14

True

Question 15

What is the role of red blood cells?

Answer 15

To transport oxygen from the lungs to the body’s tissues.

Question 16

Fill in the blank: __________ is a type of cancer that affects the blood and bone marrow.

Answer 16

Leukemia

Question 17

Short answer: Name one lifestyle change that can reduce the risk of heart disease.

Answer 17

Eating a healthy diet.

Question 18

What is the function of the gallbladder in digestion?

Answer 18

To store and concentrate bile, which helps in the digestion of fats.

Question 19

Multiple Choice: Which vitamin is essential for blood clotting? A) Vitamin A B) Vitamin C C) Vitamin K

Answer 19

C) Vitamin K

Question 20

True or False: Enzymes are consumed in the reactions they catalyze.

Answer 20

False

Question 21

What is the primary purpose of the circulatory system?

Answer 21

To transport nutrients, gases, hormones, and waste products throughout the body.

Question 22

Fill in the blank: The __________ is the muscular wall of the heart.

Answer 22

myocardium

Question 23

Short answer: Define atherosclerosis.

Answer 23

A condition characterized by the buildup of fats and cholesterol on artery walls.

Question 24

What is the role of the pancreas in digestion?

Answer 24

To produce digestive enzymes and hormones like insulin.

Question 25

Multiple Choice: Which of the following is a risk factor for cancer? A) Smoking B) Regular exercise C) Balanced diet

Answer 25

A) Smoking

Question 26

True or False: All enzymes work best at the same temperature.

Answer 26

False