The function of the gap junction is to
performing cementing to keep neighbouring cells together
facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
separate two cells from each other
separate two cells from each other
B.
facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
A gap junction may nexus or macula communicans. These are specialised intercellular connection between a multitude of animal cell-types. They directly connect the cytoplasm of two cells, which allows various molecules, ions and electrical impulses to directly pass through a regulated gate between cells.
Which one is a wrong statement?
Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms
Mucor has biflagellate zoospores
Haploid endosperm is typical feature of gymnosperms
Haploid endosperm is typical feature of gymnosperms
Metagenesis refers to
Presence of different morphic forms
Alternation of generation between asexual and sexual phases of an organism
Occurrence of a drastic change in form during post-embyonic development
Occurrence of a drastic change in form during post-embyonic development
Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?
Antidiuretic hormone
Luteinizing hormone
Prolactin
Prolactin
Destruction of the anterior horn cells of the spinal cord would result in loss of
Sensory impulses
Voluntary motor impulses
Commissural impulses
Commissural impulses
The chitinous exoskeleton of arthropods is formed by the polymerisation of
Keratin sulphate and chondraitin sulphate
D-glucosamine
N-acetyl glucosamine
N-acetyl glucosamine
Choose the wrong statement
Penicillium is multicellular and produces antibiotics
Neurospora is used in the study of biochemical genetics
Morels and truffles are poisonous mushrooms
Morels and truffles are poisonous mushrooms
A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is:
Eptatretus
Myxine
Neomyxine
Neomyxine
