Biology NEET - XI: Chapter 7- Structural Organization in Animals Part 13
Muscular tissue first appeared in the phylum Coelenterata (Cnidaria), such as jellyfish and hydra. These animals possess simple contractile fibers called epitheliomuscular cells that allow basic movement and responses to stimuli.
What does the prothoracic gland of cockroach produce?
Ecdysane/moulting hormone
Key Terms
What does the prothoracic gland of cockroach produce?
Ecdysane/moulting hormone
What is the function of ecdysane hormone?
Helps in moulting of cockroach
In which stage of cockroach is ecdysane hormone found?
Nymphal stage
What hormone does corpora allata secrete in cockroaches?
Juvenile/neotinin hormone and gonadotrophin hormone
What is the function of juvenile hormone?
It keeps cockroach in nymphal stage for a while
Which hormone does the corpora cardiaca produce in cockroach?
Growth hormone
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| Term | Definition |
|---|---|
What does the prothoracic gland of cockroach produce? | Ecdysane/moulting hormone |
What is the function of ecdysane hormone? | Helps in moulting of cockroach |
In which stage of cockroach is ecdysane hormone found? | Nymphal stage |
What hormone does corpora allata secrete in cockroaches? | Juvenile/neotinin hormone and gonadotrophin hormone |
What is the function of juvenile hormone? | It keeps cockroach in nymphal stage for a while |
Which hormone does the corpora cardiaca produce in cockroach? | Growth hormone |
What is the function of corpora cardiaca in cockroaces? | It controls heart beats in adults |
Where are testis located in a cockroach? | 4th to 6th abdominal segment |
Where do sperms mature in male cockroaches? | Seminal vesicles |
How many parts does the mushroom gland have in cockroaches? | Two- Small inner tubes- utricular brevoris | large outer tubes- utricular majoris |
What is the function of utricular brevoris in cockroaches? | Provides nutrition to sperms |
What is the function of utricular majoris in cockroaches? | Produces 1st layer of spermatophore |
What is the shape of phallic gland? | Club shaped |
What is the other name of conglobate gland? | Phallic gland |
What is the function of phallic gland? | Produces the third layer of spermatophore |
What is the other name of gonapophysis? | Phallomeres |
What are phallomeres? | CHitinous structures, help in copulation |
What is the pseudopenis in cockroaches? | Left phallomere |
What form hooks in male cockroaches? | Right and ventral phallomeres |
In which segment are ovaries located in cockroaches? | 2nd-6th abdominal segments |
How many ovarioles are present in each ovary in a cockroach? | 8 |
How many eggs are produced in an ovary in a cockroach? | One egg per ovariole (ie, 8 eggs) |
How many spermatheca are present in a cockroach? | 1 pair |
How many collaterial glands are present in a cockroach? | 1 pair |
What is the function of collaterial gland? | Secrete wall of ootheca |
How many chitinous plates are present in female gonapophysis in a cockroach? | 3 chitinous plates |
How many eggs are present in ootheca in a cockroach? | 16 fertilized eggs |
How many moulting happen in a nymph? | 13 |
What is instar in reference to a cockroach? | Nymphal stages |
How many ootheca does a female cockroach produce in its lifetime? | 9 to 10 |
How long does it take for a nymph to form an adult? | one year |
Which tissue is involved in forming a diffusion boundary? | Simple squamous epithelium |
Ciliated epithelium is actually which epithelium? | Simple columnar/cuboidal epithelium with cilia |
Which epithelium covers the moist surface of buccal cavity? | Compound epithelium |
Where are chondrocytes located in cartilage? | In small cavities within matrix |
Which connective tissue is present in outer ear joints? | Cartilage |
Where are osteocytes present in bones? | In lacunae |
What allows cardiac muscle to contract as a unit? | Intercalated disc |
What type of tissues are present in the heart? | Epithelial, connective, muscular and neural |
What is the difference between the term 'morphology' used for plants compared to that used for animals? | Morphology of plants and microbes- study of external structure only Morphology of animals- study of external structure of organisms and their organs |
From where do the antennae of cockroach arise? | From the membranous sockets in front of eyes |
The first pair of wings in cockroach arise from | Mesothorax |
The second pair of wings in cockroach arise from | Metathorax |
Which organ of cockroach is also called proventriculus? | Gizzard |
Gizzard has an outer layer of thin longitudinal muscles and inner layer of thick cuticle forming chitin plates. State whether the statement is true or false in reference to cockroach. | False. The outer layer of gizzard has thick circular muscles while the inner layer of gizzard has thin cuticle forming chitin plates`. |
Where are the teeth of cockroach located? | In gizzard |
What are the components of haemolymph of cockroach? | Plasma and haemocytes |
Where is the heart of cockroach located? | Along mid-dorsal line of thorax and abdomen |
What regulates the opening and closing of spiracles of cockroach? | Sphinctres |
How does the exchange of gases occur at tracheoles of cockroach? | By diffusion |
What lines the mapighian tubules of cockroach? | Glandular and ciliated cells |
What supplies nerves to antennae and compound eyes of cockroaches? | Supra oesophagial ganglion |
Male gonopore of cockroach is ventral to | The anus |
Where is the mushroom gland of cockroach located? | 6th to 7th segment of abdomen |
What represents the male external genitalia of cockroach? | Phallomeres |
Phallomeres surround the | Male gonapophores |
What forms the vagina in cockroach? | Oviduct of each ovary combine to form a single median oviduct which is called vagina. |
What is the size of an ootheca of cockroach? | 3/8" (8mm) |