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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
in many bacteria, cell membrane is invaginated and folded to form	mesosome
cristae helps in	respiration
responsible for mechanical support and enzyme transport	endoplasmic reticulum
electron microcope was invented by	knoll and ruska
a chromosome with centrosome at the end is called	telocentric
what is common between chloroplasts, chromoplasts and leucoplats	presence of pigments
genes present in the cytoplasm of eukaryotic cells, are found in	mitochondria and inherited via egg cytoplam
molecules that are too large to pass through the pores of a cell membrane may enter the cell by a process known as	pinocytosis
experiments on acetabularia by hammerling prove the role of	chromosomes in heredity
mitochondria and chloroplast are	semi autonomous organelles
nuclear envelope is a derivative of	rough endoplasmic reticulum
are ribosomes membrane bound or not	non il ne pas
balbiani rings are sites of	RNA and protien synthesis
the solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as	microfilaments
a major site for synthesis of lipid is	SER
fluid mosaic model of cell membrane was proposed by	singer and nicolson
which is an organelle within an organelle	ribosomes
peptide synthesis inside a cell takes place in	ribosomes
what are those structures that appear as beads-on-string in the chromosomes when viewed under electon microscope?	nucleosomes
in mitochondria, protiens accumulate in the	inner membrane
which structures between two adjacent cells is an effective transport pathway?	plasmodesmata
the main area for various types of activities of a cell is	cytoplasm
the plasma membrane consists mainly of	protiens embedded in a phospholipid bilayer
plasmodesmata are	connections between adjacent cells
stroma in the chloroplasts of higher plant contains	light independent reactions
middle lamella is mainly composed of	calcium pectate
cellulose is a major component of cell walls of	pythium
the two subunits of ribosome remain united a critical ion level of	magnesium
protien synthesis in an animal cell occurs	on ribosomes present in cytoplasm as well as in mitochondria
flagella of prokaryotic and eukaryotic cells differ in	microtubular organisation and type of movement
in chloroplasts, chlorophyll is present in the	thylakoids
in fluid mosaic model of plasma membrane	phospholipids form a bimolecular layer in middle part
which of the following occurs more than one and less than five in a chromosome	chromatid
ribosomes are produced in	nucleolus
element necessary for middle lamella is	Ca
the cell organelle involved in glyco-sylation of protien is	endoplasmic reticulum
some of the enzymes, which are associated in converting fats into carbohydrate are present in	glyoxysomes
genes located on mitochondrial DNA	generally show maternal inheritance
the point, at which polytene chromosomes appears to be attached together, is called	chromocentre
the desmosomes are concerned with	cell adherence
in salivary glands chromosomes / polytene chromosomes, pairing is	formed between homologous chromosomes
cell recognition and adhesion occur due to biochemical of cell membranes named	glycolipids and glycoprotiens
in plant cells, peroxisomes are associated with	photorespiration
balbiani rings (puffs) are sites of	RNA and protien synthesis
oxysomes of F0-F1 particles occur on	inner mitochondrial membrane
an outer covering membrane is absent over	nucleolus
which one is apparato reticolare	golgi apparatus
ribosomes were discovered by	palade
cell wall shows	complete permeability
addition of new cell wall particles amongst the existing ones is	intussusception
hammerling's experiments of acetabularia involved exchanging	rhizoid and stalk
nucleoprotiens are synthesisied in	cytoplasm
according to fluid mosaic model, plasma membrane is composed of	phospholipids, extrinsic protiens and intrinsic protiens