Life processes

Question 1

What are the basic life processes in living organisms?

Answer 1

The basic life processes are nutrition, respiration, transport, excretion, growth, reproduction, and response to stimuli.

Question 2

True or False: Nutrition is the process of obtaining food.

Answer 2

True

Question 3

Fill in the blank: The process of converting food into energy is called __________.

Answer 3

respiration

Question 4

What is the primary function of the circulatory system?

Answer 4

The primary function of the circulatory system is to transport nutrients, gases, hormones, and waste products throughout the body.

Question 5

Which type of nutrition involves the ingestion of organic matter?

Answer 5

Heterotrophic nutrition

Question 6

Multiple Choice: Which of the following is NOT a type of respiration? A) Aerobic B) Anaerobic C) Photosynthesis D) Fermentation

Answer 6

C) Photosynthesis

Question 7

What is excretion?

Answer 7

Excretion is the process of removing waste products from the body.

Question 8

True or False: Growth occurs only in multicellular organisms.

Answer 8

False

Question 9

What is reproduction?

Answer 9

Reproduction is the biological process by which new individual organisms are produced.

Question 10

Fill in the blank: The response of an organism to environmental changes is known as __________.

Answer 10

stimulus response

Question 11

What are autotrophs?

Answer 11

Autotrophs are organisms that produce their own food through photosynthesis or chemosynthesis.

Question 12

Multiple Choice: Which process is primarily responsible for gas exchange in organisms? A) Respiration B) Circulation C) Digestion D) Excretion

Answer 12

A) Respiration

Question 13

What is the role of enzymes in digestion?

Answer 13

Enzymes speed up the chemical reactions that break down food into smaller, absorbable molecules.

Question 14

True or False: All living organisms reproduce sexually.

Answer 14

False

Question 15

What is the main difference between aerobic and anaerobic respiration?

Answer 15

Aerobic respiration requires oxygen, while anaerobic respiration occurs without oxygen.

Question 16

Fill in the blank: The basic unit of life is the __________.

Answer 16

cell

Question 17

What is photosynthesis?

Answer 17

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Question 18

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

Answer 18

C) Carbon Dioxide

Question 19

What is a key characteristic of living organisms?

Answer 19

The ability to grow, reproduce, and respond to stimuli.

Question 20

True or False: Excretion is necessary for maintaining homeostasis.

Answer 20

True

Question 21

What is the process of transport in living organisms?

Answer 21

Transport is the movement of substances within an organism and between its cells.

Question 22

Fill in the blank: Growth involves an increase in __________ and __________ of cells.

Answer 22

size, number

Question 23

What are the two main types of reproduction?

Answer 23

Sexual and asexual reproduction.

Question 24

Multiple Choice: Which of the following is a form of asexual reproduction? A) Binary fission B) Pollination C) Fertilization D) Mitosis

Answer 24

A) Binary fission

Question 25

What is the function of the digestive system?

Answer 25

The digestive system breaks down food into nutrients that can be absorbed by the body.

Question 26

True or False: All living organisms need energy to perform life processes.

Answer 26

True

Question 27

What is the significance of homeostasis?

Answer 27

Homeostasis is crucial for maintaining stable internal conditions despite external changes.

Question 28

Fill in the blank: The main organ involved in excretion in humans is the __________.

Answer 28

kidney

Question 29

What is the role of the nervous system in life processes?

Answer 29

The nervous system coordinates the response of organisms to internal and external stimuli.

Question 30

Multiple Choice: Which of the following is a form of transport in plants? A) Transpiration B) Respiration C) Excretion D) Digestion

Answer 30

A) Transpiration

Question 31

What are the end products of photosynthesis?

Answer 31

Glucose and oxygen.

Question 32

True or False: All cells in an organism perform the same functions.

Answer 32

False

Question 33

What is cellular respiration?

Answer 33

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Question 34

Fill in the blank: The two main stages of cellular respiration are __________ and __________.

Answer 34

glycolysis, oxidative phosphorylation

Question 35

What is the relationship between photosynthesis and respiration?

Answer 35

Photosynthesis produces oxygen and glucose, which are used in respiration to release energy.

Question 36

Multiple Choice: Which process do plants use to make their food? A) Digestion B) Photosynthesis C) Respiration D) Fermentation

Answer 36

B) Photosynthesis

Question 37

What is the role of chlorophyll in plants?

Answer 37

Chlorophyll absorbs sunlight and helps in the process of photosynthesis.

Question 38

True or False: Asexual reproduction leads to genetic variation.

Answer 38

False

Question 39

What is the primary purpose of reproduction in living organisms?

Answer 39

To ensure the continuation of the species.

Question 40

Fill in the blank: The process by which water is lost from the surface of leaves is called __________.

Answer 40

transpiration