Respiration

Question 1

What is respiration?

Answer 1

Respiration is a biochemical process in which living organisms convert glucose and oxygen into energy, carbon dioxide, and water.

Question 2

True or False: Respiration only occurs in animals.

Answer 2

False. Respiration occurs in both plants and animals.

Question 3

What are the two types of respiration?

Answer 3

The two types of respiration are aerobic respiration and anaerobic respiration.

Question 4

Fill in the blank: Aerobic respiration occurs in the presence of _____

Answer 4

oxygen

Question 5

What is the main product of aerobic respiration?

Answer 5

The main products of aerobic respiration are carbon dioxide, water, and ATP (energy).

Question 6

What is the chemical equation for aerobic respiration?

Answer 6

The equation is C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (ATP).

Question 7

True or False: Anaerobic respiration produces more energy than aerobic respiration.

Answer 7

False. Anaerobic respiration produces less energy than aerobic respiration.

Question 8

What is produced during anaerobic respiration in yeast?

Answer 8

Ethanol and carbon dioxide are produced during anaerobic respiration in yeast.

Question 9

Multiple Choice: Which of the following is NOT a product of aerobic respiration? A) Carbon Dioxide B) Glucose C) Water D) ATP

Answer 9

B) Glucose

Question 10

What is the role of mitochondria in respiration?

Answer 10

Mitochondria are known as the powerhouse of the cell where aerobic respiration occurs.

Question 11

Fill in the blank: The energy currency of the cell is _____

Answer 11

ATP

Question 12

True or False: Plants perform respiration only at night.

Answer 12

False. Plants perform respiration all the time, both day and night.

Question 13

What is the process called where glucose is broken down in the absence of oxygen?

Answer 13

The process is called fermentation.

Question 14

Multiple Choice: Which of the following organisms undergoes anaerobic respiration? A) Humans B) Yeast C) Trees D) Fish

Answer 14

B) Yeast

Question 15

What is lactic acid fermentation?

Answer 15

Lactic acid fermentation is a type of anaerobic respiration that occurs in muscles during intense exercise, producing lactic acid.

Question 16

Fill in the blank: The byproduct of anaerobic respiration in muscle cells is _____

Answer 16

lactic acid

Question 17

True or False: Respiration is essential for life.

Answer 17

True. Respiration is essential for providing energy to all living organisms.

Question 18

What is the function of the respiratory system?

Answer 18

The function of the respiratory system is to facilitate gas exchange, bringing oxygen into the body and expelling carbon dioxide.

Question 19

Multiple Choice: Which organ is primarily responsible for gas exchange in humans? A) Heart B) Lungs C) Liver D) Brain

Answer 19

B) Lungs

Question 20

What are alveoli?

Answer 20

Alveoli are tiny air sacs in the lungs where gas exchange occurs.

Question 21

Fill in the blank: The process of taking in oxygen is called _____

Answer 21

inhalation

Question 22

What is the primary gas that is inhaled during respiration?

Answer 22

Oxygen is the primary gas inhaled during respiration.

Question 23

True or False: Respiration is a single-step process.

Answer 23

False. Respiration involves multiple steps, including glycolysis, the Krebs cycle, and the electron transport chain.

Question 24

What is glycolysis?

Answer 24

Glycolysis is the first step of cellular respiration that breaks down glucose into pyruvate.

Question 25

Multiple Choice: In which part of the cell does glycolysis occur? A) Mitochondria B) Cytoplasm C) Nucleus D) Ribosome

Answer 25

B) Cytoplasm

Question 26

What is the Krebs cycle?

Answer 26

The Krebs cycle is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins.

Question 27

Fill in the blank: The final electron acceptor in the electron transport chain is _____

Answer 27

oxygen

Question 28

What is the role of NADH and FADH2 in respiration?

Answer 28

NADH and FADH2 are electron carriers that transport electrons to the electron transport chain.

Question 29

True or False: Cellular respiration can occur without oxygen.

Answer 29

True, but it is less efficient and produces less energy compared to aerobic respiration.

Question 30

What is the significance of respiration in living organisms?

Answer 30

Respiration is crucial for providing energy necessary for cellular processes, growth, and maintenance of life.