WorksheetsBIOCHEM: CELL
Total questions: 87
Worksheet time: 47mins
The structural unit of living systems.
Cell
Cell structure
Cell organism
Human cell
What are the Phylogeny of the three distinct domains of life?
Eubacteria, Eukaryotes, Archaebacteria
Prokaryotes, Eukaryotes, Archaebacteria
Eubacteria, Prokaryotes, Eukaryotes
Endocytosis, Exocytosis, Eukaryotes
All _____ share certain common features.
Cells
Cell structure
Cell organism
Human cell
What are the two types of cells?
Prokaryotes
Eukaryotes
Eubacteria
Archaebacteria
What are the three distinct parts of Eukaryotic cell?
Cytoplasm
Organelles
Plasma Membrane
Nucleus
Have membrane-bound organelles.
Prokaryotes
Eukaryotes
Endocytosis and exocytosis are observed in ______.
Prokaryotes
Eukaryotes
Mostly, anaerobic metabolism happens in ________.
Prokaryotes
Eukaryotes
The protein synthesis of the ________ occurs both in the cytoplasm and rER.
Prokaryotes
Eukaryotes
The DNA of _______ are large and found in nucleus.
Prokaryotes
Eukaryotes
RNA are simple and usually found in the cytoplasm
Prokaryotes
Eukaryotes
RNA are nuclear and complicated.
Prokaryotes
Eukaryotes
Unicellular organisms
Prokaryotes
Eukaryotes
Either unicellular or multicellular organisms.
Prokaryotes
Eukaryotes
Bacteria lack membrane-bound organelles.
True
False
It includes archaebacteria, plants, animals, fungi and worms.
Prokaryotes
Eukaryotes
It include bacteria.
Prokaryotes
Eukaryotes
The Prokaryotic Cell composed of:
Plasma membrane, Cell wall
Cytoplasm, Cytosol
Ribosomes
Pili, Flagella
Nucleus
In Prokaryotic Cell, the structures and genetic information in the form of one or more DNA are suspended in it.
Cytosol
Ribosomes
Pili
Flagella
In Prokaryotic Cell, molecular machinery for protein synthesis
Cytosol
Ribosomes
Pili
Flagella
Aid in attaching the organism to other cells or surfaces
Cytosol
Ribosomes
Pili
Flagella
Enable cells to swim
Cytosol
Ribosomes
Pili
Flagella
What are the three distinct parts of Eukaryotic cell
Cytoplasm
Organelles
Plasma Membrane
Chloroplast
Portion of the cell enclosed by the cell membrane and outside the nucleus where the cellular organelles are found
Cytoplasm
Organelles
Plasma Membrane
Chloroplast
Most of the biochemical reactions happens in the ______.
Cytoplasm
Organelles
Plasma Membrane
Chloroplast
What are the three major parts of the cytoplasm?
Cytosol
Organelles
Cytoskeleton
Nucleus
It is the fluid portion of the cytoplasm. Some biochemical reactions also occur in this.
Cytosol
Organelles
Cytoskeleton
Nucleus
Tiny structures that perform different functions in the cell.
Cytosol
Organelles
Cytoskeleton
Nucleus
Gives shape and support to cell
Cytosol
Organelles
Cytoskeleton
Nucleus
Compositions of Cytoskeleton
Microfilaments
Intermediate filaments
Microtubules
Microtubes
Functions of Cytoskeleton
Cell shape
Cell movement
Organelle movement
Cell division
Three most important organelles:
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
The most important and the largest eukaryotic organelle.
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
Repository and cellular localization of storage, replication and expression of genetic information.
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
Contains almost 99% of the cell DNA
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
Evolved from Endosymbiosis Theory
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
Production of energy (ATP)
Nucleus
Nucleolus
Mitochondrion
Chloroplast - seen in plant cell
Found only in green plants and green algae.
Photosynthesis
Nucleus
Nucleolus
Mitochondrion
Chloroplasts
What are the other organelles?
Endoplasmic reticulum
Golgi Complex
Vesicular organelles
Nucleus
It is the network of membrane-enclosed tubules and channels in the cytoplasm.
Endoplasmic reticulum
Golgi Complex
Vesicular organelles
Nucleus
It is continuous with the nuclear membrane.
Endoplasmic reticulum
Golgi Complex
Vesicular organelles
Nucleus
Specialized set of membranes derived from ER which looks like a stack off flattened sacs
Endoplasmic reticulum
Golgi Complex
Vesicular organelles
Nucleus
For modification, sorting, and packaging of proteins and other materials
Endoplasmic reticulum
Golgi Complex
Vesicular organelles
Nucleus
It is a type of ER without ribosomes, site of carbohydrate and lipid synthesis and helps to detoxify certain compounds.
Smooth ER
Rough ER
ER
It is a type of ER coated with ribosomes and for protein synthesis.
Smooth ER
Rough ER
ER
Three parts of Vesicular Organelles
Lysosomes
Peroxisomes
Secretory Vesicles
Plasma Membrane
It is common in animal cells but rare in plant cells
Lysosomes
Peroxisomes
Secretory Vesicles
Plasma Membrane
Involved in the breakdown of very long chain fatty acids
Lysosomes
Peroxisomes
Secretory Vesicles
Plasma Membrane
Contain the enzyme catalase
Lysosomes
Peroxisomes
Secretory Vesicles
Plasma Membrane
Transport substances tot eh cell surface for release
Lysosomes
Peroxisomes
Secretory Vesicles
Plasma Membrane
Selectively isolates the cell's contents from the external environment.
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
It regulates the exchange of essential substances between the cell's contents and the external environment.
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
It communicates with other cells
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
3 compositions of plasma membrane:
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
Fluid portion of the membrane, maintaining fluidity
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
3 Categories of Proteins
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
Regulate movement of hydrophilic molecules through the plasma membrane.
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
Trigger cellular responses when specific molecules in the extracellular fluid bind to them.
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
Channel proteins
Carrier proteins
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
Serve as identification tags and cell-surface attachment sites.
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
Glycoproteins
Transport Proteins
Receptor Proteins
Recognition Proteins
Structural Proteins
2 parts of Phospholipid Bilayer
Polar, hydrophilic head
Pair of nonpolar, hydrophobic tails
Membrane proteins with attached carbohydrates
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
Enabling the immune system to detect foreign cells, such as invading bacteria, which carry different glycoproteins.
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
Acts as a stabilizer that limits the movement of phospholipids layers, which slide back and forth in the membrane.
Plasma Membrane
Phospholipid Bilayer
Proteins/Glycoproteins
Cholesterol
The transfer of solutes and information across membranes.
Active Transport
Passive Transport
Cell Membrane Transport
Three classifications of Cell Membrane Transport
Cross-membrane movement of small molecules
Cross-membrane movement of large molecules
Signal transmission across membrane
Signal transmission along membrane
Cross-membrane movement of small molecules
Transport that does not require energy
Movement of solute is along the concentration gradient
Creation depends on the following:
1. Chemical gradient
2. Transmembrane electrical gradient
Passive Transport
Active Transport
Cross-membrane movement of small molecules
The movement of solute is against the concentration gradient.
Passive Transport
Active Transport
Cross-membrane movement of small molecules
Involves energy utilization through ATP hydrolysis
Passive Transport
Active Transport
Three types of Passive Transport
Simple Diffusion
Facilitated Diffusion
Osmosis
Complex Diffusion
Without membrane protein
Movement of solutes down its electrochemical gradient due to random thermal movement or simply because the solute is permeable through the lipid bilayer because it is small enough
Simple Diffusion
Facilitated Diffusion
Osmosis
Complex Diffusion
Movement of solutes down its electrochemical gradient through either transporters or ion channels (membrane proteins)
Simple Diffusion
Facilitated Diffusion
Osmosis
Complex Diffusion
Diffusion of water across membranes
Simple Diffusion
Facilitated Diffusion
Osmosis
Complex Diffusion
Movement of water from the area of higher WATER concentration to region of lower WATER concentration.
Simple Diffusion
Facilitated Diffusion
Osmosis
Complex Diffusion
ACTIVE TRANSPORT
Solute accumulation coupled directly to an exergonic chemical reaction such as breakdown of ATP
Primary Active Transport
Secondary Active Transport
Tertiary Active Transport
ACTIVE TRANSPORT
Occurs when endergonic (uphill) transport of one solute is coupled to an exergonic (downhill) flow of a different solute that was originally pumped uphill by a primary active transport.
Primary Active Transport
Secondary Active Transport
Tertiary Active Transport
ATP-medicated; in micelle form
Active Transport
Passive Transport
Cell Membrane Transport
Vesicular Transport
Cross-membrane movement of large molecules
Plasma membrane engulfs the fluid droplet or particle and pinches off a membranous sac
Endocytosis
Exocytosis
Cross-membrane movement of large molecules
Moves material out of the cell
Endocytosis
Exocytosis
TYPES OF ENDOCYTOSIS
Tiny vesicle only
Pinocytosis
Receptor-mediated endocytosis
Phagocytosis
TYPES OF ENDOCYTOSIS
LDL receptors
Pinocytosis
Receptor-mediated endocytosis
Phagocytosis
TYPES OF ENDOCYTOSIS
Picking up large particles, including microorganisms
Pinocytosis
Receptor-mediated endocytosis
Phagocytosis
DIRECTION MOVEMENT
Moves one type of molecule bidirectionally
Uniport System
Co-transport System
Symport
Antiport
DIRECTION MOVEMENT
Transport of one solute depends upon the stoichiometric simultaneous or sequential transfer of another solute.
Uniport System
Co-transport System
Symport
Antiport
Type of co-transport system that moves these solutes in the same direction
Uniport System
Co-transport System
Symport
Antiport
Type of co-transport system that move two molecules in opposite directions
Uniport System
Co-transport System
Symport
Antiport
