a. only animals are composed of cells
B. all cells consist of the same elements and molecules
C. all cells come from existing cells
D. all living things are made of cells
E. cells are the basic units of structure and function in all living organisms
F. cells must contain DNA
G. all cells are surrounded by the plasma membrane
H. all cells have the ability of storing and replicating the genetic information
A. are the simplest cellular organisms
B. are prokaryotes
C. may form multicellular organisms
D. can only form unicellular organisms
E. may have numerous membranous organelles
F. have no membranous compartments within a cell
G. contain large central vacuoles
h. are usually surrounded by a strong cell wall
A. DNA contains the four different bases A, G, U, and C
B. nucleic acids contain sugar groups
C. plants have chloroplasts and therefore can live without mitochondria
D. cytosol is only present in eukaryotic cells
E. ribosomes become linked by an mRNA molecule to form polyribosomes
F. cytoplasmic membrane consists of phospholipid double layer and peripheral and integral proteins
G. lysosomes digest only substances that have been taken up by endocytosis
H. cell wall is permeable
A. is usually the only biomembrane in prokaryotic cells
B. regulates the intake of substances into the cell
C. is called plasmalemma
D. is called nuclear membrane
E. belongs to basic cellular surfaces
F. contains receptors so cells can receive signals
G. forms the environment for life and metabolic activity of organelles
H. primarily provides mechanical protection of the cell
A. plasmalemma
B. nuclear envelope
C. cuticle
D. pellicle
E. cell wall
F. cytoplasmic membrane
G. slime capsule
H. nuclear membrane
A. cytoplasm
B. cytokinesis
C. cytosol
D. plasma membrane
E. matrix
F. plasmalemma
G. karyon
H. karyolemma
A. plant and animal
B. nuclear and nucleus-free
C. differentiated and non-differentiated
D. prokaryotic and eukaryotic
E. microscopic and submicroscopic
F. simple and compound
G. membrane and non-membrane
H. somatic and germ
A. mitochondria
B. endoplasmic reticulum
C. central vacuole
D. Golgi apparatus
E. chloroplasts
F. nucleolus
G. lysosomes
H. ribosomes
A. have membrane-bounded organelles
B. do not have membrane-bounded organelles
C. have a nucleus bounded by double membrane
D. do not have nuclear envelope
E. have circular nuclear chromosomes
F. possess a nucleus
G. have their internal space compartmentalized into organelles
H. contain DNA as a store of genetic information
A. plastids
B. membrane-bounded organelles
C. ribosomes
D. nucleus
E. cytoplasmic membrane
F. DNA
G. nucleolus
H. mitochondria
A. a double layer of proteins and molecules of saccharides
B. a double layer of lipids and integral and peripheral proteins
C. a double layer of phospholipids and a double layer of saccharides
D. a single layer of phospholipids and two layers of the molecules of proteins
E. molecules of phospholipids which form a double layer and molecules of proteins
F. the external protein layer and the internal lipid layer
G. integral and peripheral lipids and molecules of proteins
H. a double layer of phospholipids, in which molecules of proteins are immersed
A. are separated from the external environment by a cytoplasmic membrane
B. contain lysosomes filled with enzymes that degrade polymers into their monomeric subunits in the cell
C. contain vacuoles
D. are surrounded by the polysaccharide cell walls
E. may have plasmodesmata that connect neighbouring cells
F. do not have any cell wall
G. have a tonoplast
H. may contain myofibrils, tonofibrils, neurofibrils
A. enables for spatial division of organelles in the cell
B. represents a static skeleton of the cell
C. is employed in the process of diffusion
D. is employed in the process of phagocytosis
E. is employed in the process of pinocytosis
F. is employed in the process of osmosis
G. is composed of nucleoprotein fibres
H. has kinetic, mechanical and supportive functions
A. is the site of vitamin D synthesis
B. is the site of lipid synthesis
C. lacks ribosomes
D. is the site of protein synthesis
E. has the outer side of membrane studded with ribosomes
F. plays role in the intracellular transport of substances
G. plays role in the intercellular transport of substances
H. does not belong to membrane-bounded organelles of the cell
A. does not have the outer side of membrane studded with ribosomes
B. is visible under the light microscope
C. participates in the synthesis of lipids
D. functions in lipid production and metabolism
E. contains mainly hydrolytic enzymes
F. has the inner side of membrane studded with ribosomes
G. is the site of protein synthesis
H. plays role in the intracellular transport of some substances
A. act in lytic processes in the cell
B. are present in animal cells
C. are present in prokaryotic cells
D. are present in plant cells
E. modify the substances synthesized on ribosomes, so they may be excreted out of the cell
F. contain hydrolytic enzymes used for intracellular digestion
G. transfer molecules between different compartments
H. digest worn out organelles
A. present only in eukaryotic cells
B. organelles with two membranes
C. energy centre of the cell
D. present in some of the prokaryotic cells
E. metabolic-respiratory centre of the cell
F. synthetic centre of the cell
G. present in numbers that directly correlate with the level of cell metabolic activity
H. present only in animal cells
A. is called as nucleoid in eukaryotic cells
B. is called as nucleolus
C. consists mainly of RNA and proteins
D. of eukaryotic cells contains circular chromosomes
E. contains the DNA and proteins, which form chromatin
F. has nuclear envelope on the surface
G. has plasmalemma on the surface
H. is surrounded by double membrane
A. belong to membrane-bounded organelles of the cell
B. can be seen using a light microscope
C. are submicroscopic particles
D. do not belong to membrane-bounded organelles of the cell
E. are only visible in an electron microscope
F. are attached to the smooth endoplasmic reticulum
G. are macromolecular structures composed of DNA and proteins
H. are macromolecular structures composed of rRNA and proteins
A. are organelles with single membrane
B. are organelles with double membrane
C. synthesize their own specific proteins
D. have the molecules of the DNA in the matrix
E. have the enzyme complex for the Krebs cycle in the matrix
F. are filled with stroma
G. represents a dynamic skeleton of the cell
H. have enzymes of the oxidative phosphorylation localized on the mitochondrial cristae
A. belongs to membranous structures
B. is necessary for all types of cellular active movements
C. represents a dynamic structure of the cell
D. represents a static structure of the cell
E. belongs to fibrous structures
F. belongs to non-living parts of the cell
G. is formed by microtubules, microfilaments, and intermediate filaments
H. is formed by nucleoprotein fibres
A. are part of chloroplasts
B. comprise the Golgi apparatus
C. are similar to lysosomes
D. are part endoplasmic reticulum
E. are present in prokaryotic cells
F. are found in eukaryotic cells
G. are part of the endomembrane system in the cytoplasm
H. are stacks of flat, membrane bounded cisternae
A. is in the cytoplasm and consists of the RNA and proteins
B. is in the nucleus and consists of the DNA and proteins
C. is a permanent structure of the nucleus
D. is made up of rRNA and proteins
E. is a region where rRNA synthesis occurs
F. is a structure which disappears during the cell division
G. has a nucleolar envelope
H. is localized into the cytoplasm of prokaryotic cells
A. is responsible for transporting, modifying, and packaging of proteins
B. is responsible for transporting, modifying, and packaging lipids into vesicles for delivery to targeted destinations
C. is important for lysosome formation
D. is important for formation of secretory vesicles
E. is located in the cytoplasm of prokaryotic cells
F. acts as storage compartment for nutrients and wastes of the cell
G. is responsible for cell oxidations
H. is made up of approximately four to eight cisternae
A. contains chromatin
B. contains centriole
C. is the control centre of the cell
D. contains the majority of the cell’s genetic material
E. has nuclear envelope made of one biomembrane only
F. is present in all cells of our body
G. is a submicroscopic structure
H. occurs in all eukaryotic cells except some highly specialised ones