17
Introduction to Biotechnology
MPORTANT POINTS
Agrove of cells having the inay types (1) Simple (2) Complex ue-These e mad There are four types of Muscular nues Us (1) Epithelial t (4) Nervous hux made up of only one type hype of cells (2) Connective b Epithelial tissue are of various types like squamous stated, glandular, column, Connective tues blood, lymph, arestar, adipoon, cartilage, bones, tandons a Types of muscular tuen are striated, non-strated and cardiac muscles Nervous Tissue are made up of neurons Nouron has a cell body mont so called dendrites. One projection is longer and is called as in plants, there are two types of tissues (1) Meristematic tissues and Meristematic tissues are the only plant tissus whose cells are case of cal de present in the parts where growth of the plants takes place. Apical metal of the rool and stem. Intercalary meristem is present at the base of the p branches. Lateral meristem is present in lateral sides of root and > Permanent tissues are of two types (1) Simple permanent tissant (25 Complex por tissues ▸ Simple permanent tissues are mainly of three types: (1) Parenchyma (2) Collemchey (3) Sclerenchyma, Chlorenchyma and Aerenchyma are special types of parenchyma Complex permanent tissues are xylem and phloem Biotechnology-With this technique, it has been possible to produce plants and s some new characteristics in addition to their normal ones. The techniqum of brogingsbot provements in living organisms by artificial genetic changes and by hybridizate for the well human beings are together called Biotechnology. Ex vivo growth of cells or tissues in an aseptic and nutter rich medium in caled the culture Due to Biotechnology, it has been possible to produce crope which ve ability to withstand o ronmental stresses and resist insects, pests, pathogens and Chemicas woodies. The yi the crops and nutritive value is also increased Biotechnology also has applications in floriculture, nurseries and oventry Agritourism, animal husbandry, poultry farming, sericulture are on
****SPECIMEN QUESTIONS ****
(1) Human blood is a type of tissue.
(1) epithelial
(2) connective
(3) muscular
(4) nervous
Explanation: Human blood is a connective type of tissue. ..
Option 2 is correct.
(2) -tissues increase the length of stem and root.
(1) Apical meristem
(2) Intercalary meristem
(3) Lateral meristem
(4) Xylem
Explanation: Apical meristem tissues increase the length of stem and root.
Option 1 is correct.
(3) MON 810 is a GM variety of
(1) potato
(2) rice
(3) maize
(4) tomato
Explanation: MON 810 is a GM variety of maize
Option is correct.
(4) -tissues contain chlorophyll.
(1) Aerenchyma
(2) Collenchyma
(3) Sclerenchyma
(4) Chlorenchyma
Explanation: Chlorenchyma tissues contain chlorophyll and they do photosynthesis. Option is correct.
**QUESTIONS FOR PRACTICE **
(1) Which of the following tissues is not an animal tissue?
(1) Connective tissue
(2) Epithelial tissue
(3) Muscular tissue
(4) Meristematic tissue
Ana-(4) Meristematic tissue
(2) Which of the following is a type of connective tissue?
(1) Stratified epithelium
(2) Ciliated epithelium
(3) Lymph
(4) Cuboidal epithelium
Ana-(3) Lymph
tissues support the internal organs.
(1)Areolar
(2) Cartilage
(3) Bone
(4) Tendons
(3)
Ana-(1)Areolar
(4) Which tissues are found in the inner layer of skin?
(1) Squamous epithelium
(2) Stratified epithelium
(3) Glandular epithelium
(4)Columnar epithelium
Ana-(3) Glandular epithelium
(5) Which type of tissues form the skeleton of the body?
(1)Bones
(2) Cartilage
(3) Lymph
(4) Blood
Ana-(1)Bones
(6) Involuntary muscles: Non-striated muscles :: Voluntary muscles:
(1) Cardiac muscles
(2) Nervous tissues
(3) Lymph
(4) Striated muscles
Ana-(4) Striated muscles
(7) Increase length of stem and root: Apicall meristem:: Increase girth of stem and root
(1) Apical meristem
(2) Intercalary meristern
(3) Lateral meristem
(4) Permanent tissues
Ana-(3) Lateral meristem
(8) Give strength and rigidity to parts of the plant: Sclerenchyma :: Support and give flexibility to parts of the plant :-
(1) Xylem
(2) Phloem
(3) Parenchyma
(4) Collenchyma
Ana-(4) Collenchyma
(9) Identify the incorrect statement.
(1) Chlorenchyma helps the plants to float
(2) Non-striated muscles are also called involuntary muscles
(3) Cuboidal epithelium is present in tubules of kidneys
(4) Blood is a connective tissue.
Ana-(1) Chlorenchyma helps the plants to float
(10) The epidermis of the stem and leaves is covered by a waxy layer called
(1) cuticle
(3) vacuole
(2) stomata
(4) guard cells
Ana-(1) cuticle
(11) Protection of body from infections is the function of
(1) muscles
(2) lymph
(3) cartilage
(4) bones
Ana-(2) lymph
(12) Protective coverings in the animal body are called
(1) connective tissues
(2) muscular tissues
(3) epithelial tissues
(4) nervous tissues
Ana-(3) epithelial tissues
(13) Growth of branches and formations of leaves and flowers is the function of
(1) apical meristems
(2) intercalary meristems
(3) lateral meristems
(4) collenchyma
Ana-(2) intercalary meristems
(14) -help aquatic plants, leaves and stem to float.
(1) Chlorenchyma
(2) Parenchyma
(3) Collenchyma
(4) Aerenchyma
Ana-(4) Aerenchyma
(15) Find the odd member out:
(1) Sindhi
(2) Gir
(3) Lal Kandhari
(4) Jersy
Ana-(4) Jersy
(16) are reared for eggs as well as meat.
(1) Leghorn
(2) Rhode Island Red
(3) Cochin
(4) Lehman
Ana-(2) Rhode Island Red
(17) Ex vivo' growth of cells or tissues in an aseptic and nutrient-rich medium is called
(1) tissue culture
(2) agriculture management
(3) animal husbandry
(4) sericulture
Ana-(1) tissue culture
(18) The cells of - walls. have lignified thick cell (1) parenchyma
(2) collenchyma
(3) sclerenchyma
(4) chlorenchyma
Ana-(3) sclerenchyma
(19) Because of - tissues, it is possible for us to respond to the stimuli like touch. sound, smell, colour etc.
(1) connective
(2) epithelial
(3) muscular
(4) nervous
Ana-(4) nervous
20) Identify the examples of simple tissues: (A) Epithelial tissues (B) Blood (C) Parenchyma (D) Xylem and phloem
(1) A and B
(2) A and C
(3) A and D
(4) B and C
Ana-(2) A and
Hints for difficult questions
(9) Aerenchyma helps the plants to float. S statement
(1) is wrong.
Option is correct.
(15) Jersey is the only exotic variety of cow, others are local varieties.
Option is correct.
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