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20 questions
This organism is unicellular, an photosynthetic autotroph, has a nucleus, and some of them can be heterotrophic. What is the classification of this organism?
Bacteria
Fungi
Viruses
Protists
Kingdoms fungi and bacteria are examples of?
Archaea
Decomposers
Carnivores
Energy
What do you call organisms that are helpful in the recycling of inorganic nutrients?
decomposers
mitochondria
digestive lysosomes
parasitic organisms
Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms. Which body systems work together to protect the body from pathogens?
Muscular and vascular
Endocrine and reproductive
Digestive and excretory
Circulatory and immune
Fungi digest their food....
with the assistance of microbes
externally by excreting digestive enzymes and then absorbing the nutrients
by engulfing the food source
internally by producing digestive enzymes within an organelle or organ and absorbing the nutrients
Which type of microorganisms are not characterized by eukaryotic cells?
Fungi
Protists
Bacteria
Plantae
Which of the following is not a cell but can reproduce within a living cell?
bacteria
virus
alga
yeast
What is special about viruses and their host cell
viruses can attach to any type of cell
viruses are bigger than their host cells
viruses are living things
viruses can only attach to specific host cells
What viral replication cycle is taking place?
Lytic cycle
Mitosis
Lysogenic cycle
meiosis
Why do antibiotics not work against viruses?
Viruses are to small
Viruses do not have a protein coat
Viruses are not living
Viruses are to complex
Which statement below explains the lysogenic cycle?
viruses erupt from the cell in a short amount of time
it converts the host cell into a pathogenic bacteria cell
the virus genetic material binds with host cells and stays dormant for a long period of time
The virus attaches externally to the host cells and stays there for many years
What are viruses made of?
genetic material, protein coat, and lipid membrane
nucleus, golgi apparatus, and cytoplasm
cytoskeleton, chloroplasts, and mitochondrion
lysosome, transfer RNA, and enzymes
In order to replicate itself, a virus must first....
destroy the nucleus of host cell
penetrate the cell membrane of a host cell
dilute the cytoplasm of a host cell
clone the mitochondria of a host cell
Viruses and cells both contain...
mitochondria
vacuoles
chloroplasts
nucleic acids
The AIDS virus is damaging to the body because...
targets cells of the immune system
causes an abnormally high insulin level
prevents normal nerve impulse transmission
attacks specific red blood cells in the cardiovascular system
What structures do all cells have?
ribosomes, cell membrane, and DNA
vesicles, mitochondria, and plasmids
DNA, plasmids, and mitochondria
cilia, ribosomes, and vacuoles
What do plant cells, fungus cells, and bacterial cells all have?
nucleoid
membrane-bound organelles
cell wall
energy-producing mitochondria
comparison to eukaryotic cells, prokaryotic cells are
mobile
complex
acidic
small
The projections on the surface of this virus allow the virus to...
move inside a host cell
signal other viruses to infect a host cell
control a host cell's DNA
attach to a host cell
How do you know the shape of bacteria?
prefix tells your the shape and common name tells you how they are grouped
common name tells your the shape and prefix tells you how they are grouped
By how it affects the body
The only way is by looking into a microscope
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