Where do most cellular metabolic activities take place directly in a prokaryotic cell?
  • Inside the chloroplast
  • Within the nuclear matrix
  • Directly in the cytoplasm
  • Inside the vacuole
Which of the following are acellular infectious agents that lack a cellular structure entirely?
  • Bacteria
  • Yeasts
  • Viruses, viroids, and prions
  • Protozoans
What is a virus structurally composed of?
  • Protein and lipid layer only
  • Genetic material enclosed within a protein coat
  • Misfolded carbohydrates
  • Cellulose cell walls
What defining structural component does a viroid lack when compared to a standard virus?
  • Genetic material
  • Protein coat
  • Enzymes
  • Cytoplasm
What are prions?
  • Infectious single-stranded RNA molecules
  • Misfolded proteins that lack genetic material
  • Tiny unicellular thermophilic bacteria
  • Non-membranous plant organelles
What is the network of fine structural fibers in eukaryotic cells that supports shape and internal transport called?
  • Endoplasmic reticulum
  • Cytoskeleton
  • Extracellular matrix
  • Chromatin
Non-living materials stored in plant cells, like starch grains or calcium oxalate crystals, are known as:
  • Cell organelles
  • Cell inclusions
  • Vacuolar pigments
  • Nuclear pores
Which organelle is described as the "House of coded instructions" due to its role in containing genetic codes?
  • Mitochondrion
  • Nucleus
  • Golgi body
  • Lysosome
What is the dense round body located inside the nucleus where ribosomal subunits are synthesized?
  • Nucleoid
  • Nucleolus
  • Centrosome
  • Nuclear pore
Why do mature human red blood cells (RBCs) lack a nucleus (enucleate)?
  • To prevent viral replication within the blood
  • To provide more space for hemoglobin to transport oxygen
  • To allow them to live for several years without dividing
  • Because they are classified as prokaryotes
What is the average lifespan of a human red blood cell?
  • 10 days
  • 120 days
  • 365 days
  • 24 hours
What is the specific region containing the single circular DNA molecule in a prokaryotic cell called?
  • Nucleus
  • Nucleoid
  • Nucleolus
  • Plasmid
What cellular structures are famously called the "protein factories" of the cell?
  • Lysosomes
  • Ribosomes
  • Dictyosomes
  • Mitochondria
Macromolecules are small molecules.
  • True
  • False
Which of the following is NOT a macromolecule?
  • Protein
  • Carbohydrate
  • Amino Acid
  • Nucleic Acid
The macromolecules include...
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
  • All of the above
Which macromolecule is a central energy source for organisms?
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
What is a long carbohydrate called?
  • Monosaccharide
  • Amino Acid
  • Fatty Acid
  • Polyssaccharide
Which macromolecule is made up of fats, oils and waxes?
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
Which macromolecule is made up of amino acids?
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
Which macromolecule helps prevent water loss in plants?
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
How many different amino acids are there?
  • 10
  • 20
  • 100
  • Nobody knows
Which macromolecule transmits and stores genetic information?
  • Lipids
  • Proteins
  • Carbohydrates
  • Nucleic Acids
What kind of foods would have lipids in them?
  • Meat, dairy, butter
  • Pasta, bread, oatmeal
  • Fruits and vegetables
  • All of the above
IDENTIFY THE TYPE OF CELL
  • ANIMAL CELL
  • PLANT CELL
  • BACTERIAL CELL
  • PROKARYOTIC CELL
THIS CELL IS DEVOID OF
  • CELL WALL
  • TRUE NUCLEUS
  • GENETIC MATERIAL
  • FLAGELLA
THE SIZE OF EUKARYOTIC CELL -
  • 1-10μm
  • 5-50μm
  • 5-100μm
  • 10-50μm
SMOOTH ENDOPLASMIC RETICULUM PLAYS AN IMPORTANT ROLE IN
  • STORAGE OF FOOD
  • ATP SYNTHESIS
  • SYNTHESIS OF FOOD
  • DETOXIFYING MANY POISONS AND DRUGS
CELL THEORY IS GIVEN BY
  • ROBERT HOOKE & SCHWANN
  • ROBERT BROWN & SCHLEIDEN
  • SCHLEIDEN & SCHWANN
  • ARISTOTLE& SCHLEIDEN
PLANT CELL WALL IS MAINLY COMPOSED OF
  • CELLULOSE
  • HEMI-CELLULOSE
  • PROTEIN
  • LIPIDS
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