True nucleus is absent in
Anabaena
Mucor
Vaucheria
Vaucheria
A.
Anabaena
Anabaena is prokaryotic blue-green alga showing no true nucleus and membrane bound organelles. Rather a nucleoid region containing genetic material is present in the cytoplasm. The other cells of Mucor, Vaucheria and Volvox belongs to eukaryotic fungi and algae.
An organised nucleus or true nucleus present in all eukaryotic cells. It is differentiated into nuclear envelope, chromatin, one or more nucleoli and nucleoplasm. These cell contains membrane-bound organelles e.g. mitochondria, Golgi complex.
Transpiration and root pressure cause water to rise in plant by?
pulling it upward
pulling and pushing it, respectively
pulling it upward
pulling it upward
Which one of the following is not an inclusion body found in prokaryotes?
Phosphate granule
Cyanophycean granule
Glycogen granule
Glycogen granule
Minerals known to be required in large amounts for plant growth include
phosphorus, potassium, sulphur, calcium
calcium, magnesium, manganese, copper
potassium, phosphorus, selenium, boron
potassium, phosphorus, selenium, boron
Which one of the following human organs is often called the “graveyard” of RBCs?
Gall bladder
kidney
Spleen
Spleen
Vascular bundles in monocotyledons are considered closed because
a bundle sheath surrounds each bundle
cambium is absent
there are no vessels with perforations
there are no vessels with perforations
A major characteristic of the monocot root is the presence of
Open vascular bundles
Scattered vascular bundles
Vasculature without cambium
Vasculature without cambium
