BIOLOGY M.C.Q (1 Marks)

Ribosomes.

Lipid bilayer covering.

Mycoplasma

Lysosome.

Protein synthesis.

Anabaena is a cyanobacterium which belongs to Kingdom Monera. Monerans are prokaryotic organisms.

Hydrolytic enzymes.

All of the above.

Differential centrifugation.

Cristae.

All are correct.

Plasmid.

Elaioplasts.

Stroma of chloroplasts and peroxisomes.

Bacterial flagella is made up of protein flagellin.

Singer and Nicolson.

Photorespiration.

Exosmosis

Lysosomes.

Plasma membrane is a selective permeable membrane that allows only selective molecules to pass through it. The permeability depends on the electric charge and polarity of the molecules.

Eukaryotic cell has several membrane bound cell organelles.
These cell organelles can be bound by a single or double membrane.
Nucleus, plastids and mitochondria are bounded by double membrane whereas lysosomes, sphaerosome, glyoxysomes are bounded by a single membrane.
Ribosomes are naked particles not bounded by any membrane.

Numerical aperture.

Presence of cell wall.

Proteins, lipids and carbohydrates.

Ribosomes.

Prokaryotes and eukaryotes are two different types of cells.Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.
The ribosome is the only organelle that can be seen in both prokaryotic and eukaryotic cells, though the types of ribosomes in the two types of cells vary.

All of the above.

Grana.

Both the mammalian erythrocytes and sieve tube cells of plants lack the nucleus. Although nucleus is present during early stages of their development but later on they become enucleated.

The main site for synthesis of lipid is smooth endoplasmic reticulum.

Palade.

Lysosomes

Golgi apparatus.

Cell division.

Golgi apparatus.

Plasma membrane is the outermost covering of the animal cells.
It is a protective covering of the cell.
It protects the cell from nature of surrounding medium, i.e., acidic, basic etc.
It also controls the substances to be moved inside or outside of the cell.
It is the boundary of the cell and keeps the cell contents inside the cell.

Spherosomes.

Lysosome

Schleiden, Schwann and Virchow.

Nerve cells are the longest cells.

Chromatophore.

Nucleus, cytoplasm.

Complete permeability.

Plasmodesmata.

Nerve cell

Ribosomes are called protein factories because they synthesize proteins.

Microtubular organization and type of movement.

Middle lamella is made up of calcium pectate.

Phospholipids form a bimolecular layer in middle part.

The inner membrane forms a number of folding’s called cristae towards the matrix. These cristae increases the surface area.

Salmonella is a bacteria which has unorganised nucleus without membrane and hence, it is a prokaryote.
A bacteriophage is a virus and non-living particle.
Agaricus is a fungus. Green algae are plants.

Blue.

Glyoxysomes.

On ribosomes present in the cytosol as well as in the mitochondria.

Mitochondrial genome.

Position of centromere.

Phospholipids.

Glyoxylate cycle.

Middle lamella.

On ribosomes present in cytoplasm as well as in mitochondria.

Mitochondria.

Mitochondria.

Robert hooke

Cytoplasm

Plasma membrane is made up of lipid bilayer with protein integrated in the bilayer. Carbohydrate is also present in plasma membrane.

Schleiden and Schwann.

Telocontric.

Helically arranged protein molecule.

Cell theory.

The nucleus controls protein synthesis and is the genetic repository of a cell.
Hence, the nucleus can be called as the mastermind of cell.

Hydrolytic enzymes.

Anaphase.

Endoplasmic reticulum.

Endoplasmic reticulum.

Chemiosmotic theory.

Cytoplasm

Nucleolus.

Store protein, starch and fat respectively.

The enzymes of the electron transfer chain are embedded in the outer membrane.

Nucleus and mitochondria.

Protein synthesis.

Tonoplast In plant cell the vacuole in bound by a single membrane called tonoplast.
The tonoplast facilitates the transport of ions and other material against the concentration gradient into the vacuole.
Hence, their concentration is higher in the vacuole than in the cytoplasm.
The outer membrane of mitochondria is formed of porin proteins and inner membrane bounds of chloroplast the stroma the cell membrane of the plant cell is not a tonoplast.
It is 'simple biological/unit membrane present in every cellular organism.

Flemming.

Apposition.

Cell membrane and nucleolus.

Cytoskeleton is present inside the cell and hence cannot provide intracellular transport.

Centriole.

Cell adherence.

Get transformed from one type to another.

Golgi apparatus

Mitochondria and chloroplasts.

The cell membrane also called as plasma membrane that separates the interior of a cell from the outside environment.
The cell membrane surrounds the protoplasm of a cell.

Ribosomes.

Inner mitochondrial membrane.

Lysosomes show polymorphisms because of their different shape and functions.
Primary lysosomes are newly formed lysosomes.
The fusion of a primary lysosome with a phagosome gives rise to secondary lysosomes.

In the cytoplasm as well as in mitochondria.

The endoplasmic reticulum without attached ribosomes is called agranular or smooth endoplasmic reticulum.
It occurs in cells engaged in producing a large quantity of lipids.

Vacuole.

Very low wavelength of electron beam.

Amyloplasts.

Ribosome.

The resolution power of the electron microscope is much higher than that of the light microscope.

Tonoplast.

Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane.

The smooth endoplasmic reticulum is connected to the nuclear envelope and consists of tubules that are located near the cell periphery.
These tubules sometimes branch forming a network that is reticular in appearance.
The network of smooth endoplasmic reticulum allows for an increased surface area to be devoted to the action or storage of key enzymes and the products of these enzymes.

Other stains in the option are used for staining chromosomes or nucleus whereas safranin is generally used as counter stain in gram staining.

ysosomes are rich in a variety of hydrolytic enzymes or acid hydrolases.
Autophagic lysosomes perform autophagy. Autophagy is dependent on hydrolytic enzymes. Lysosomes are important in metamorphosis,
i.e., eating away larval organs, removal of obstructions, intracellular scavenging, osteogenesis, fertilization, etc.

Idioblast.

Aleuroplasts.

Lysosome.

Distinguish two close objects.

Endoplasmic reticulum.

Glycolipids and glycoproteins.

Phospholipid.

Steorids.

Lysosomes.

Thylakoids.

Mitochondria.

Cyanobacteria.

Increasing the number of phospholipids with unsaturated hydrocarbon tails.

Position of centromere.