Font size
WorksheetsSimplest Forms of life
Total questions: 52
Worksheet time: 3hrs 8mins
Bacteria that feed on dead or decaying organisms
Saprotrophic Bacteria
Symbiotic Bacteria
Parasitic Bacteria
These protozoans do not move. An example is Plasmodium falciparum that belongs to this category and causes malaria
Sporozoans
Flagellates
Ciliates
Rhizopods
A lichen is a....
a plant
a symbiotic relationship between a fungus and an alga.
a planktonic alga.
symbiotic bacteria.
Fungi...
are autotrophic organisms
reproduce sexually through asexual spores
are eukaryotic, heterotrophic organisms.
have chloroplasts.
The protist kingdom…
includes unicellular, prokaryotic organisms.
includes multicellular eukaryotic organisms.
includes single-celled or multicellular, eukaryotic organisms.
protozoans and bacteria
The monera Kingdom…
consists of all bacteria
includes single-celled, prokaryotic organisms
includes single-celled, eukaryotic organisms.
The fungi can be classificated with the following types of nutrition
Saprophytic, Symbiotic and Parasitic
Saprophytic, Predators and Parasitic
Symbiosis and phagocytosis.
Saprophytics and detritivores
Bacteria are
autotrophic
heterotrophic
heterotrophic and autotrophic
The algae from Protista Kingdom
can be unicellular or multicellular
are mostly heterotrophic
If they are multicellular, they are movable and if they are unicellular, they are inmovable
dont reproduce by spores
This is not a disease produced by a virus
Ebola
Flu
AIDS
Tetanus
The fungi are organisms that
produce diseases and only a few benefits for humans
can be used to produce antibiotics
do not decompose the organic matter in the ecosystems
they have no food interest because, in many cases, they are poisonous
Organisms belonging to the Fungi kingdom...
are the mushrooms, yeast and moulds
are unicellular
can be unicellular or multicellular
are autotrophic that perform photosynthesis and other chemical processes to make their own food.
Which of the following statements about algae is true
Algae do not have true stems, leaves or roots
Algae cells have tissues and organs
Algae only live in freshwater aquatic environments
Algae are the most common consumers in aquatic ecosystems
Algae reproduce asexually through
binary fission, spores or fragmentation
binary fission, multiple fission or fragmentation
conjugation or fragmentation
Protozoa are classified according to
the way the move
the number of cilia they have
their shape
Protozoa reproduce
asexually through binary or multiple fission
sexually through conjugation
all the answers are true
Which of the following statements about bacteria is false
autotrophic bacteria perform photosynthesis
bacteria are classified according to how they move
some bacteria move using flagella
bacteria can be autotrophic or heterotrophic
Which of the following statements about fungi is false
fungi respond to stimuli in their environment, like humidity or food
fungi are inmobile
most fungi reproduce sexually and asexually
the most common method of asexual reproduction is through binary fission
A kingdom of prokaryotic organisms. They are unicellular and include all bacteria
(a)
An animal that kills and feeds on other animals.
(a)
An animal that feeds on decomposing organic matter
detritivore
Predator
symbiotic
parasitic
Which of the following statements about algae is false?
Algae appear in various shapes and sizes
Algae do not have true stems, leaves and roots
Algae only live in freshwater aquatic ecosystems
Protozoa reproduce
asexually trough binary or multiple fission
sexually by conjugation
both answers are true
Algae are important because
they start aquatic food chains, feed aquatic hervibores and produce oxygen
some release toxins in the atmosphere
both answers are true
Which of the following statements about fungi is false?
Fungi are inmobile
Fungi do not respond to stimuli in their environment
Most fungi reproduce asexually and sexually
The most common method of asexual reproduction is through spores
It is a non-cellular parasite that can only reproduce by invading the cells of other living things.
(a)
Viruses infect the cells of all types of organisms: animals, plants, bacteria, fungi, algae and protozoans. Viruses that infect bacteria are called
bacteriophages or phages
parasitic viruses
predator viruses
saprophitic virus
All viruses consist of a
strand of genetic material (can be DNA or RNA), surrounded by a protective protein coat called a capsid.
strand of genetic material (RNA), surrounded by a protective protein coat called a lipase.
strand of genetic material (DNA), surrounded by a protective protein coat called a capsid and a tail
Viruses only have the life process of reproduction. Their first step to infect a new organism is to
attach itself to the membrane of a host cell, then inject its genetic material into the cell
inject its genetic material into the nucleus af the cell, then attach itself to the membrane of the cell
inject all its components in the cytoplasm and the cell replicate new copies of the virus
These organisms can be unicellular or multicellular. In some species of single-celled organisms, individual cells join together to form colonies. They have a cell wall and they do not form tissues or organs
(a)
They are unicellular fungi. Some are beneficial for humans, but others cause infections.
Mushrooms
Moulds
Yeasts
These are examples of protozoas that can cause serious illnesses in humans:
Sleeping sickness, Malaria
Sleeping sickness, Mycoses
Chickenpox, Malaria
Mumps, Malaria
In fungi the reproductive structure is the mushroom (fruiting body), and it is made of
a stalk, a cap (where gills are found) and the mycelium (the entire mass of the hyphae buried in the soil)
a yeast, a cap (where gills are found) and the mycelium (the entire mass of the hyphae buried in the soil)
a stalk, a cell wall (where spores are found) and the lichen (the entire mass of the cellulose buried in the soil)
Which of the following statements about protozoa is false?
Protozoans are unicellular, eukaryotic organisms.
Some are free-living, while others are parasites.
Protozoans do not have a cell wall and they do not form tissues.
They have cytoplasm, vacuoles, chloroplasts and ribosomes.
Red algae...
have pigments which allow them to perform photosynthesis in much deeper water. Mostly multicellular and found in the sea
are multicellular and grow in marine habitats. Include kelp and seaweed.
have pigments, mainly chlorophyll. They live in varied aquatic environments. They can be unicellular or multicellular.
Algae have
cytoplasm, vacuoles, mitochondria, ribosomes and chloroplasts.
cytoplasm, vacuoles, mitochondria, centrioles and cellulose.
cytoplasm, mitochondria, ribosomes and chloroplasts.
Select the correct answer about parasitic bacteria
Salmonella enteritidis causes some gastroenteritis
Clostridium tetani cause an infection called mycoses.
Vibrio cholera can cause an infection called malaria.
Select the classification of bacteria according to their shape
Cocci
Vibrio
Spirilla
Bacilli
Sporozona
Select the types of reproduction of protozoa
Binary fission
Multiple fission
Conjugation
Phagocytosis
Fungi get their nutrients in different ways.
Saprophytic fungi
Parasitic fungi
Symbiotic fungi
predators fungi
Which organism represent the following image
(a)
Which type of protozoa represent the following image
Cillia
Flagella
Sporozona
Pseudopods
The monera Kingdom…
a. …consists of all bacteria.
b. …includes single-celled, prokaryotic organisms.
c. …includes single-celled, eukaryotic organisms.
d. …a and b are correct.
The protist kingdom…
includes unicellular, prokaryotic organisms.
includes multicellular eukaryotic organisms.
includes single-celled or multicellular, eukaryotic organisms.
includes protozoans and bacteria.
Fungi
are autotrophic organisms.
reproduce sexually through asexual spores.
are eukaryotic, heterotrophic organisms.
dhave chloroplasts.
A lichen is…
a plant.
an organism formed by the symbiotic relationship between a fungus and an alga.
a planktonic alga.
symbiotic bacteria.
This is an example of
Conjugation
Multiple fission
Binary fission
Phagocytosis
Algae are classificated by colours. We can find:
Green, red and brown algae
Blue, green and yellow algae
Brown, red and yellow algae
Green, red and orange algae
These are multicellular fungi. They grow on bread, cheese, fruit and other organic substances
Moulds
Yeast
Fungi
Many fungi produce this substances and they are used in humans to fight harmful bacteria
(a)
Select the images that represent a protozoa organism
This image represent
Viruses attacking a cell
Bacterias infecting a cell
Moulds producing a disease
Malaria protozoas infecting a blood cell
