Multiple Choice QuestionsInner surface of the bronchi, bronchioles and fallopian tubes are lined by
cubical epithelium
columnar epithelium
squamous epithelium
ciliated epithelium
What external changes are visible after the last moult of a cockroach nymph?
Mandibles become harder
Anal cerci develop
Both fore wings and hind wings develop
Labium develops
Which of the following tissues provide maximum mechanical support to plant organs?
Sclerenchyma
Collenchyma
Parenchyma
Aerenchyma
B.
Collenchyma
Collenchyma is responsible for performing photosynthesis due to the presence of chloroplast and aerenchyma is responsible for allowing exchange of gases between the shoot and the root.
Sclerenchyma are dead mechanical tissue whose cells are long or short, narrow, thick walled and lignified. It acts as a versatile mechanical tissue that provides maximum mechanical strength to the plant. While, the other tissue such as parenchyma helps in storage of food and water and is involved in activities like photosynthesis, respiration, etc.
Juvenile hormone in insect is released from
protocerebrum
corpora cardiaca
corpora allata
thoracic gland
The epithelium found in the inner linings of stomach and intestine is
columnar
squamous
stratified
pseudostratified
Which one of the following statements is incorrect?
Insects have one pair of antenna
Millipeds possess two pairs of appendages in each segment of the body
Prawns have two pairs of antenna
Animals belonging to the phylum- Porifera have nematocys
Study the following statements with reference to nervous system in Periplanata.
I. The brain is mainly a sensory and an endocrine centre.
II. All thoracic ganglia supply nerves to the parts of their respective segments only.
III. Sixth abdominal ganglion is the largest of all the abdominal ganglia.
IV. Frontal ganglion is connected to the ingluvial ganglion by a recurrent nerve.
From the above identify the correct statements
II and IV
II and III
I and III
I and IV
In the female cockroach the anterior wall, roof and floor of genital pouch are formed respectively by the following abdominal sterna of
7th , 8th and 9th segments
8th , 7th and 9th segments
9th , 8th and 7th segments
8th , 9th and 7th segments
Select the organs/parts which are derivatives of Mesoderm.
I. Nervous system (except mecroglia)
II. Heart, blood vessels
III. Spleen
IV. Kidney, ureters
V. Epithelium of larynx, trachea, bronchi and lungs
VI. Legaments, tendons and skin dermis
II, III, IV and VI
I and V
I, II and IV
III, VI and VI
Plantula is a soft adhesive pad that helps cockroach in grasping the substratum firmly on which leg podomere does it occurs?
Tarsus
Trochanter
Femur
Coxa
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