Membrane -bound organelles are absent in
Saccharomyces
Streptococcus
Chlamydomonas
Chlamydomonas
B.
Streptococcus
Streptococcus is a spherical, gram positive bacterium, Membrane bound organelles are absent in prokaryotes.
Fungi (e.g, Saccharomyces) represents a group of eukaryotic, non-photosynthetic heterotropic organisms. Algae(e.g.Chlamydomonas) is a group of chlorophyll bearing, autotrophic, thalloid plants.
Plasmodium is a genus of protists. Infection by these organsims is know as malaria.
Which one of the following structures between two adjacent cells is an effective transport pathway?
Plasmodesmata
Plastoquinones
Endoplasmic reticulum
Endoplasmic reticulum
The chief water conducting elements of xylem in gymnosperms are
vessels
fibres
tansfusion tissue
tansfusion tissue
One example of animals having a single opening to the outside that serves both as mouth as well as anus is
Octopus
Asterias
Ascidia
Ascidia
In unilocular ovary with a single ovule, the placentation is
marginal
basal
free central
free central
The kind of epithelium which forms the inner walls of blood vessels is
cuboidal epithelium
columnar epithelium
ciliated columnar epithelium
ciliated columnar epithelium
An element playing important role in nitrogen fixation is
Molybdenum
copper
manganese
manganese