Structural Organisation in Animals - Live Session - NEET 2020Contact Number: 9667591930 / 8527521718Structural Organisation in Animals - Live Session - NEET 2020Contact Number: 9667591930 / 8527521718Which of the following statements is not correct with respect to the epithelial tissue?
1. It covers the external surface of the body and internal surface of many organs.
2. The neighbouring cells are held together by cell junctions and there is very little extra cellular material.
3. The epithelial cells rest on a cellular basement membrane that separates it from underlaying connective tissue.
4. There is no blood vessel supplying the nutrients to the epithelial cells.
When secretary granules leave cell by exocytosis with no loss of other cellular material, the glands are called
1. Holocrine
2. Merocrine
3. Apocrine
4. Autocrine
In cockroach, the formation of ootheca is by the secretion of:
1. Prothoracic glands of male
2. Prothoracic glands of female
3. Colleterial glands of male
4. Colleterial glands of female
Identify the incorrect statement:
1. In both male and female cockroach, 8th and 9th tergites are mostly covered by the 7th
2. Ventrally, the abdomen in cockroach has only 9 sternites in males and 7 in females
3. In female cockroach, the 7th sternite along with 8th and 9th forms gynatrium
4. the anterior most part of the hynatrium is called the oothecal chamber
Which of the following does not help in excretion in Periplaneta americana
1. Fat body
2. Uricose glands
3. Nephrocytes
4. None of these
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
1. ammonia
2. potassium urate
3. urea
4. calcium carbonate
Select the correct route for the passage of sperms in male frogs:
1. Testes → Vasa efferentia → Kidney → Seminal Vesicle→ Urinogenital duct → Cloaca
2. Testes → Vasa efferentia → Bidder's canal → Ureter→ Cloaca
3. Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca
4. Testes → Bidder's canal→ Kidney→ Vasa efferentia→ Urinogenital duct→ Cloaca
Which of the following features is not present in Periplaneta americana?
1. Indeterminate and radial cleavage during embryonic development
2. Exoskeleton composed of N-acetylglucosamine
3. Metamerically segmented body
4. Schizocoelom as body cavity
Which one of the following animal has two separate circulatory pathways?
1. Frog
2. Lizard
3. Whale
4. Shark
Earthworms are:
1. ureotelic when plenty of water is available
2. uricotelic when plenty of water is available
3. uricotelic under conditions of water scarcity
4. ammonotelic when plenty of water is available.
In the following diagram of a leg of cockroach parts have been indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts of which they indicate,
1. A = Coxa, B = Tibia, C = Tarsus, D = Femur, E = Trochanter
2. A = Coxa, B = Femur, C = Trochanter, D = Tarsus, E = Tibia
3. A = Coxa, B = Tarsus, C = Femur, D = Tibia, E = Trochanter
4. A = Coza, B = Trochanter, C = Femur, D = Tibia, E = Tarsus
The ganglia of sympathetic and the central nervous system in frog develops from the
1. neural cell
2. neural plate cells
3. notochordal cells
4. neural crest cells
Tadpoles of frog can be made to grow as giant sized tadpoles, if they are
1. administered antithyroid substance like thiourea
2. administered large amounts of thyroxine
3. reared on a diet rich in egg yolk
4. reared on a diet rich in both egg yolk and glucose.
Microvilli of intestinal epithelium are similar in function with
1. typhlosole in earthworm
2. hepatic caeca in cockroach
3. intestinal caecum in earthworm
4. Malpighian tubules in cockroach
Which of the following serve as the anchoring junctions between the cells?
1. Tight junctions
2. Gap junctions
3. Desmosomes
4. Nexuses
Epithelial cells are connected to basement membrane by
1. Tight junctions
2. Adherens Junctions
3. Desmosomes
4. Hemidesmosomes
Which of the following connective tissue is avascular, is aneural and has limited repair capabilities
1. Cartilage
2. Bone
3. Ligament
4. Tendon
Apart from the hematopoietic cells, bone marrow is largely composed of
1. areolar tissue
2. adipose tissue
3. white fibrous tissue
4. epithelium
Hyaline cartilage exists at all the following locations except
1. Ventral and of ribs
2. Articulating surfaces of the bones
3. Epiglottis
4. Larynx
Bone mineral is a modified
1. Collagen
2. Hyaluronic acid
3. Hydroxyapatite
4. Ossein
Smooth muscles do not contain
1. Actin
2. Myosin
3. Cytoplasmic reticulum
4. Troponin
Which of the following are the three basic components of all type of connective tissue except blood?
1. Cells, fibres and ground substances
2. Fibroblast, reticular fibres and collagen
3. Mast cells, lymphocytes and adipocyte
4. Arteries, veins and capillaries
The most and the least abundant leucocytes are respectively:
1. Neutrophils and basophils
2. Lymphocytes and monocytes
3. Lymphocytes and basophils
4. Neutrophils and monocytes
Which of the following statement is correct regarding tissue made of a single thin layer of flattened cells with irregular boundaries?
1. It is involved in functions like forming a diffusion boundary
2. It is found in walls of blood vessels, intestinal lining and air sacs of lungs.
3. Their main function is secretion and absorption.
4. They bear cilia sometimes and are called ciliated epithelium.
Which of the following statement is correct regarding areolar tissue?
1. It serves as a supporting framework for epithelium.
2. The cells and fibres are loosely arranged in a semi-fluid ground substance.
3. The collagen fibres are present in rows between many parallel bundles of fibres.
4. Mast cells, fibroblasts and macrophages are its components.
Which among the following has been mismatched?
1. Smooth muscle tissue-wall of blood vessels
2. Areolar tissue-beneath the skin
3. Cartilage between adjacent bones of vertebral column
4. Chondrocytes lacunae
Which among the following is responsible for fusion of plasma membranes of cardiac cells in heart and bundles smooth muscle fibres together to form a connective tissue sheath?
1. Blood
2. Cell junction
3. Neuroglia
4. Intercalated discs
Which among the following statements are correct?
(I) Saliva is secreted by exocrine glands.
(II) Epithelial tissue rests on non-cellular basement membrane.
(III) Muscular tissue possesses cell junctions.
(IV) Mucus-secreting goblet cells are multicellular.
1 I and II only
2. I and IV only
3. I, II and III
4. Only III
All the statements with respect to cockroach are correct except:
1. Three ganglia lie in the thorax and six ganglia lie in the abdomen.
2. Hindgut is broader than midgut.
3. Exchange of gases takes place at tracheoles of diffusion.
4. Phallomeres are chitinous symmetrical structures surrounding the male gonopore.
Which among the following are incorrect with respect to connective tissue?
1. Tendon is dense regular connective tissue.
2. Bones are rich in collagen fibres.
3. The intercellular material of cartilage is solid and pliable matrix that resists compression.
4. Platelets and RBCs are devoid of nucleus.
Which among the following is not a sense organ of cockroach?
1. Labial palps
2. Maxillary palps
3. Caudal style
4. Anal cerci
Tissue is
1. a group of cells performing similar function
2. a group of cells performing specific function
3. a group of similar cells along with extracellular substances performing specific function
4. a group of similar cells along with intercellular substances performing specific function
Simple epithelium does not account for
1. Made up of single layer of cells
2. Functions as lining of body cavities
3. Functions as lining of muscles
4. Is not protective in function
Simple epithelium is divided further on the basis of
1. Structural modifications
2. Functional modifications
3. Both 1 and 2.
4. Organs in which they are found
Areolar tissue is
1. Serves as a support framework for epithelium
2. Present above the skin
3. Has only two types of cells macrophages and mast cells
4. Cells and fibres are loosely arranged in a liquid ground substance.
Dense irregular connective tissue has
1. Oriented parallel
2. Has less fibres
3. Mostly collagen
4. No fibroblasts
Dense irregular connective tissue
1. Present in the skin
2. Present beneath the skin
3. Present above the skin
4. Absent in skin
Find the correct statement out with respect to cartilage.
1. Having solid and pliable intracellular material which cannot bear compressions
2. Matrix is not secreted by chondrocytes
3. Chondrocytes are enclosed in small cavities
4. Vertebrates have cartilage replacement by bone in adult at few locations
Find the correct information about bones
1. Have hard and pliable ground substances
2. Rich in calcium salts which alone provide strength
3. Interact to skeletal muscles to bring about locomotion
4. Bone marrow is present in all bones
Find the wrong statement with respect to neural tissue.
1. Neuroglia make nearly half the volume of neural tissue
2. Neuroglia protect and support neurons
3. Neural tissue controls the body's responsiveness to changing conditions
4. Stimulation of neurons cause the electrical disturbance in plasma membrane.
Sexual dimorphism in case of cockroaches are observed-
1. Males having longer wings than female
2. Presence of caudal style in male
3. Presence of caudal style in female
4. More than one option is correct
The hardened plates of exoskeleton ventrally is known as
1. Sclerites
2. Tergites
3. Sternites
4. Termites
Tegmina are not-
1. Mesothoracic
2. Forewings
3. Cover hindwings at flight
4. First pair of wings
The female cockroaches have
1. 7th, 8th and 9th sternites as genital pouch
2. Female gonopore, spermathecal pores and collateral glands at the posterior part of genital pouch
3. 10 abdominal segments unlike males
4. anal styles as well
Anal cerci is
1. Jointed filamentous structure
2. Present in 9th segment
3. Present only in males
4. More than one option is correct
Find the incorrect match.
1. Junction of midgut and hindgut-Malpighian tubules
2. Gizzard-Chitinous plates
3. Crop-chemical digestion of food
4. Gastric Caeca-digestive juice
Hindgut in cockroach is
1. Broder than midgut
2. Has two parts ileum and rectum
3. Rectum opens into blind sac
4. More than one option is correct
Heart of cockroach
1. Has elongated muscular tube
2. Lying along mid ventral line of thorax and abdomen
3. Has closed funnel shaped chambers with a single ostia
4. All of the above
Ommatidia are not
1. Hexagonal
2. 2000 in a cockroach
3. Multiple images of an object
4. All are correct with respect to ommatidia of cockroach
Female reproductive system of cockroaches has
1. Ovaries lie ventrally in the 2nd and 6th abdominal segments
2. Total 8 ovarian tubules or ovarioles
3. Vagina also known as single median oviduct
4. A spermatheca is present in the 6th segment