life processes

Question 1

What is the primary function of respiration?

Answer 1

To exchange gases (oxygen and carbon dioxide) between the body and the environment.

Question 2

True or False: The main organ of respiration in humans is the heart.

Answer 2

False

Question 3

Fill in the blank: The process of taking in oxygen and expelling carbon dioxide is called __________.

Answer 3

respiration

Question 4

What is the main function of the circulatory system?

Answer 4

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

Question 5

Multiple Choice: Which of the following is NOT a component of blood? A) Plasma B) Red blood cells C) Neurons D) White blood cells

Answer 5

C) Neurons

Question 6

What is excretion?

Answer 6

The process of removing waste products from the body.

Question 7

True or False: The kidneys are responsible for filtering blood and producing urine.

Answer 7

True

Question 8

What are the two main types of nutrition?

Answer 8

Autotrophic and heterotrophic nutrition.

Question 9

Fill in the blank: In humans, the process of breaking down food to obtain energy is known as __________.

Answer 9

digestion

Question 10

Multiple Choice: Which organ is primarily responsible for nutrient absorption in humans? A) Stomach B) Small intestine C) Large intestine D) Esophagus

Answer 10

B) Small intestine

Question 11

What gas do plants take in during photosynthesis?

Answer 11

Carbon dioxide

Question 12

True or False: The heart has four chambers.

Answer 12

True

Question 13

What is the role of hemoglobin in the blood?

Answer 13

To carry oxygen from the lungs to the rest of the body.

Question 14

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

Answer 14

systemic

Question 15

Multiple Choice: Which of the following is a waste product of cellular respiration? A) Glucose B) Oxygen C) Carbon dioxide D) Water

Answer 15

C) Carbon dioxide

Question 16

What are the main waste products excreted by the kidneys?

Answer 16

Urea, creatinine, and excess salts.

Question 17

True or False: The large intestine is primarily involved in the absorption of water.

Answer 17

True

Question 18

What is the term for organisms that can produce their own food?

Answer 18

Autotrophs

Question 19

Fill in the blank: The primary site of gas exchange in the lungs is the __________.

Answer 19

alveoli

Question 20

Multiple Choice: What is the main purpose of the respiratory system? A) To circulate blood B) To remove waste C) To provide oxygen D) To digest food

Answer 20

C) To provide oxygen

Question 21

What is the function of the diaphragm in respiration?

Answer 21

To help expand and contract the lungs during breathing.

Question 22

True or False: Nutrients are absorbed in the stomach.

Answer 22

False

Question 23

What is the process of breaking down food into smaller molecules called?

Answer 23

Digestion

Question 24

Fill in the blank: The __________ system is responsible for transporting nutrients in the body.

Answer 24

circulatory

Question 25

What is the role of villi in the small intestine?

Answer 25

To increase the surface area for nutrient absorption.

Question 26

True or False: The lungs are responsible for excreting carbon dioxide.

Answer 26

True

Question 27

What is the primary component of urine?

Answer 27

Water