Biology XI Notes - Transportation - Short Questions Answers
Q.1: Write a note on Diffusion?
Ans: Diffusion:
Example:
Chapter # 12
NUTRITION
BOTANY PART
Q.1: What is nutrition and what are different types of nutrition?
Ans:
The process by which living organisms obtain energy to perform all their functions of life to make important materials and to maintain their structure is called nutrition.
Types Of Nutrition:
There are two types of nutrition:
BIOENERGETICS
Q.1: What is Photosynthesis?
Ans: Photosynthesis is a process in which plants manufacture their food in the presence of chlorophyll and sunlight by the combination of carbon dioxide and water to form simple carbohydrates. In this process, oxygen is liberated. It is important to note that the amount of carbon dioxide consumed in this process is equal to the amount of oxygen liberated.
In photosynthesis, not only simple carbohydrates are formed but also a considerable amount of energy, which is initially obtained from sunlight as radiant energy, is transferred by green cells into chemical energy.
KINGDOM ANIMALIA
Q.1: What are the diploblastic and triploblastic?
Ans: DIPLOBLASTIC AND TRIPLOBLASTIC ORGANIZATION:
Diploblastic are the animals whose body wall is composed of two layers: outer ectoderm and inner endoderm. Between these two layers, a non-cellular gelatinous layer called mesogloea is present.
Fig. 10-1(A): Diploblastic Organization (Hydra - T.S.)
Triploblastic are the animals whose body wall consists of three layers: outer ectoderm, middle mesoderm, and inner endoderm.
Fig. 10-1(B): Triploblastic Organization
Q.2: Write a note on Symmetry?
Ans: Symmetry:
A balanced structure and composition of the body according to the size and shape is called symmetry. It provides the least possible resistance in the movement of the body. There are two types of symmetry:
Biology XI Notes
The Kingdom Plantae - Short Questions Answers
Chapter # 09
Short Questions Answers
Section III - Biodiversity
THE KINGDOM PLANTAE
Q.1: Write a note on classification of Plants?
Ans: Classification of Plants:
Kingdom plantae is classified into two divisions:
Division Bryophyta: (Non-Vascular Plants)
This division is divided into three classes:
Biology XI Notes
Kingdom Fungi - Short Questions Answers
Chapter # 08
Short Questions Answers
Section III - Biodiversity
Kingdom Fungi
Q.1: Describe the structure of the body of Fungi?
Ans: Structure of the Body of Fungi:
The fungi have a very simple body. In the majority of fungi, the body consists of a network of branched thread-like structures, called the Hyphae. When the hyphae form a mass, it is known as mycelium.
Biology XI Notes
Kingdom Prokaryotae (Monera) - Short Questions Answers
Chapter # 06
Biology - XI
Section III - Biodiversity
Kingdom Prokaryotae (Monera)
Q.1: What are Bacteria? What are the types of Bacteria?
Ans: Bacteria:
Bacteria are the simplest and smallest living organisms which possess cellular structure. They are microscopic. They were discovered by a Dutch scientist Anton Von Leeuwenhoek in 1676, then he gave them the name bacteria in 1683.
Biology XI Notes
Kingdom Prokaryotae (Monera) - Short Questions Answers
Chapter # 06
Biology - XI
Section III - Biodiversity
KINGDOM PROKARYOTAE (MONERA)
Q.1: What are Bacteria? What are the types of Bacteria?
Ans: BACTERIA:
Bacteria are the simplest and smallest living organisms which possess cellular structure. They are microscopic. They were discovered by a Dutch scientist Anton Von Leeuwenhoek in 1676, then he gave them the name bacteria in 1683.
Biology XI Notes
Variety of Life - Short Questions AnswersVARIETY OF LIFE
Q.1: What is classification? Describe the different characters of classification?
Ans: There are different kinds of living organisms in the world. These organisms differ from each other in size, shape, and color. They are classified into different groups and sub-groups on the basis of their characters. This system of classification is known as Taxonomy.
Biology XI Notes
The Cell – Short Questions Answers
Chapter # 04
Short Questions Answers
Section II – Unity Of Life
THE CELL
Q.1: What is a cell?
Ans:
The cell is the smallest fundamental, structural and functional unit of living organisms OR cell is the basic unit of life.
The discovery and study of cells became possible after the invention of microscope. The microscope was invented by an Italian scientist Galilio in 1610.
Biology XI Notes
Chapter # 03
Short Questions Answers
Section II – Unity Of Life
THE ENZYMES
Q.1: What are enzymes and what are the characters of enzymes?
Ans: ENZYMES:
Enzymes are the organic proteinaceous substances which catalyze chemical reactions in the living organisms. These are considered as bio-catalysts. They increase the rate of chemical reaction but are not consumed in the process:
The term enzyme was used by a scientist, Friedrich Wilhelm Kuhn in 1878.
Biology XI Notes - Biological Molecules - Short Questions Answers
Chapter # 02 - Biology - XI
Q.1: What is biochemistry? What is the importance of biochemistry?
Ans:
Introduction of Biochemistry:
Biochemistry is a branch of biology that deals with the study of chemical processes in the bodies of living organisms.
Chapter # 01 - Biology - XI
Short Questions Answers Section I - Introduction
Q.1: What is Biology?
Ans:
Biology is one of the natural sciences, which deals with the study of living organisms. It is known as the study of life. The word "biology" is derived from Greek words "Bios" meaning life and "Logos" meaning study or knowledge.
Formerly, living organisms were classified into two kingdoms:
Plant Kingdom:
In this kingdom, plants were included. The study of plants is called Botany.
Animal Kingdom:
In this kingdom, animals were included. The study of animals is known as Zoology.
