The figure shows different human tissues labelled as A to D. Which option gives the correct identification of the label, its location and one feature.
D-Unicellular glandular epithelium, goblet cells, secrete saliva
B-Squamous epithelium, walls of blood vessels, form a diffusion boundary
A-Cuboidal epithelium, ducts of glands, secretion and absorption
C-Columnar epithelium, lining of stomach, secretion and absorption
D.
C-Columnar epithelium, lining of stomach, secretion and absorption
The given figure
A is squamousepithelium, found in walls of blood vessels and air sacs of lungs and is involved in functions like forming a diffusion layer.
B is cuboidal epithelium, found in ducts of glands and tubular parts of nephrons of kidney and its main functions are secretion and absorption.
C is columnar epithelium, found in lining of stomach and intestine and helps in secretion and absorption.
D is ciliated columnar epithelium, present in inner surface of hollow organs like bronchioles and Fallopian tubes and helps to move particles or mucus in a specific direction over the epithelium.
An example of stretch reflex triggered by passive muscle movement is the
tendon reflex
ipsilateral reflex
flexor reflex
patellar reflex
Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms
Perianth and no integuments
Embryo development and apical meristem
Absence of resin duct and leaf venation
Presence of vessel elements and absence of archegonia
Some salient features and phyla of organisms are given below. Select the option which shows correct combination of organism, its phylum and salient features.
Select the mismatched pair out of the following
Rhizome - Dryopteris, Nelumbo nucifera
Corm - Crocus sativus, Amorphophallus
Sucker -Curcuma domestica, Zingiber officinale
Tuber -Helianthus tuberosus, Solanum tuberosum
Identify the accurate explanation of mesosome. It is
a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm
the middle layer of the prokaryotic cell wall
the organelle of eukaryotic cell which helps in lipid synthesis
the middle layer of eukaryotic cell wall.
Identify the incorrect statement about ABA growth regulator
It increases the tolerance of plants against different stresses.
It acts as general plant growth inhibitor and inhibitor of metabolism.
It helps in seed maturation and dormancy.
It promotes morphogenesis and differentiation of shoots.
Select the option that correctly matches characteristic features with the group of three animals.
Skeleton ofspicules - Sycon, Adamsia, Spongilla
Excretion by flame cells - Taenia, Fasciola, Ancylostoma
Mouth contains radula - Dentalium, Octopus, Ophiura
Jointed appendages - Limulus, Apis, Laccifer
Select the option that contains all plants which produce non-endospermic seeds.
Gram, Pea, Bean, Groundnut
Castor, Peanut, Orchid, Wheat
Coconut, Walnut, Wheat, Gram
Castor, Maize, Coconut, Orchid
