Life Processes

Question 1

What are the basic life processes in living organisms?

Answer 1

Nutrition, respiration, transportation, excretion, growth, reproduction, and movement.

Question 2

True or False: All living organisms perform the same life processes.

Answer 2

True

Question 3

Fill in the blank: The process of taking in food and converting it into energy is called ______.

Answer 3

Nutrition

Question 4

What is the primary function of respiration in living organisms?

Answer 4

To release energy from food.

Question 5

Name the two types of nutrition.

Answer 5

Autotrophic and heterotrophic nutrition.

Question 6

What is autotrophic nutrition?

Answer 6

The process by which organisms produce their own food using sunlight or inorganic substances.

Question 7

What is heterotrophic nutrition?

Answer 7

The process by which organisms obtain food from other living organisms.

Question 8

List the three types of heterotrophic nutrition.

Answer 8

Saprophytic, parasitic, and holozoic nutrition.

Question 9

What do saprophytic organisms feed on?

Answer 9

Dead and decaying organic matter.

Question 10

What is the role of chlorophyll in photosynthesis?

Answer 10

To absorb sunlight for converting carbon dioxide and water into glucose and oxygen.

Question 11

True or False: Respiration occurs only in the presence of oxygen.

Answer 11

False

Question 12

What are the two types of respiration?

Answer 12

Aerobic and anaerobic respiration.

Question 13

What is aerobic respiration?

Answer 13

The process of producing cellular energy with the use of oxygen.

Question 14

What is anaerobic respiration?

Answer 14

The process of producing energy without the use of oxygen.

Question 15

What is the end product of anaerobic respiration in yeast?

Answer 15

Ethanol and carbon dioxide.

Question 16

What is the primary function of the circulatory system?

Answer 16

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

Question 17

Name the main components of the circulatory system.

Answer 17

Heart, blood, and blood vessels.

Question 18

What is the function of red blood cells?

Answer 18

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

Question 19

What is excretion?

Answer 19

The process of removing waste products from the body.

Question 20

True or False: Excretion is not essential for the survival of organisms.

Answer 20

False

Question 21

What are the main excretory organs in humans?

Answer 21

Kidneys.

Question 22

What is the process of growth in living organisms?

Answer 22

The increase in size and mass through cell division and differentiation.

Question 23

What is reproduction?

Answer 23

The biological process by which new individual organisms are produced.

Question 24

Name the two main types of reproduction.

Answer 24

Asexual and sexual reproduction.

Question 25

What is asexual reproduction?

Answer 25

Reproduction that does not involve the fusion of gametes.

Question 26

What is sexual reproduction?

Answer 26

Reproduction involving the fusion of male and female gametes.

Question 27

Fill in the blank: Movement is a characteristic of all ______ organisms.

Answer 27

Living

Question 28

What is the purpose of movement in living organisms?

Answer 28

To find food, escape predators, and reproduce.

Question 29

What is homeostasis?

Answer 29

The maintenance of a stable internal environment in an organism.

Question 30

True or False: Growth can occur without movement.

Answer 30

True

Question 31

What is the significance of photosynthesis in life processes?

Answer 31

It produces oxygen and glucose, which are essential for the survival of most living organisms.

Question 32

What is the role of the stomata in plants?

Answer 32

To allow the exchange of gases, such as carbon dioxide and oxygen.

Question 33

What is cellular respiration?

Answer 33

The process by which cells convert glucose and oxygen into energy.

Question 34

Fill in the blank: The main energy currency of cells is ______.

Answer 34

ATP (Adenosine Triphosphate)

Question 35

What is the role of enzymes in biological processes?

Answer 35

To speed up chemical reactions in the body.

Question 36

What are metabolic processes?

Answer 36

The chemical reactions that occur within a living organism to maintain life.

Question 37

What is the primary purpose of the digestive system?

Answer 37

To break down food into smaller components for absorption.

Question 38

Name the three main parts of the digestive system.

Answer 38

Mouth, stomach, and intestines.

Question 39

What is the role of the large intestine?

Answer 39

To absorb water and form waste products.

Question 40

What is the main purpose of the respiratory system?

Answer 40

To facilitate gas exchange between the body and the environment.

Question 41

What is the function of the alveoli in the lungs?

Answer 41

To increase the surface area for gas exchange.

Question 42

What is the role of the liver in metabolism?

Answer 42

To process nutrients and detoxify harmful substances.

Question 43

Fill in the blank: The process of converting glucose into energy in cells is called ______.

Answer 43

Cellular respiration

Question 44

What is the function of the kidneys in excretion?

Answer 44

To filter blood and produce urine.

Question 45

True or False: All organisms reproduce to ensure the survival of their species.

Answer 45

True

Question 46

What is the significance of the nitrogen cycle for living organisms?

Answer 46

It recycles nitrogen in various forms, which is essential for the synthesis of proteins and nucleic acids.

Question 47

What is the primary function of hormones in living organisms?

Answer 47

To regulate physiological processes and maintain homeostasis.

Question 48

Fill in the blank: The ______ system is responsible for transporting hormones throughout the body.

Answer 48

Endocrine

Question 49

What is the role of the skeletal system?

Answer 49

To provide structure, support, and protection to the body.

Question 50

What is the primary purpose of the nervous system?

Answer 50

To coordinate and control body activities through electrical signals.