WorksheetsBiology sem 2 wk 5
Total questions: 25
Worksheet time: 6hrs 15mins
Which is the result of conjugation?
endospore creation
genetic diversity
nucleoid break down
rapid cell reproduction
Which is a stage of a host-cell infection by a virus?
Adaptation of viral receptors to infect most organism cells
Replication of viral DNA using host mitochondria DNA
Viral genetic material injected into the host cell’s cytoplasm
Virus attaches to host cell membrane using a capsule
Which describes a retrovirus?
enzyme-coated virus
protein-coated virus
virus with DNA
virus with RNA
Without an endospore, a Clostridium tetani bacterium would not be able to __.
complete binary fission
maintain genetic diversity
repair plasma membrane
survive extreme coldness
Viral DNA is integrated with the genetic material of a host cell during the __.
lytic cycle
lysogenic cycle
Organisms without a nucleus are called __.
bacteria
trilobytes
prokaryotes
fungi
An infectious, protein substance is called a(n) __.
prion
cell
mitochondria
ribosome
The three major groups of protists are classified based on their methods for __.
locomotion
osmosis
producing food
obtaining nutrition
Which are protozoans?
amoebas, apicomplexans, ciliates
apicomplexans, dinoflagellates, euglenoids
diatoms, euglenoids, zooflagellates
euglenoids, dinoflagellates, diatoms
Which describes all organisms in the kingdom Fungi?
autotrophic eukaryotes
autotrophic saprophytes
heterotrophic eukaryotes
heterotrophic saprophytes
Members of which phylum of fungi were once classified as protists?
Ascomycota
Chytridiomycota
Deuteromycota
Zygomycota
What do the fungi of lichens provide to their photosynthetic partners?
acid for creating cyanobacteria habitats
food for photosynthesis
protective outer covering
structural support for the cyanobacteria or algae
The primary body components of fungi are called __.
hyphae
mushroom
stem
pangea
Plant cells that serve as the basis for many plant structures and are capable of a wide variety of functions are called __.
parenchyma cells
sclerenchyma cells
collenchyma cells
Water vapor, oxygen, and carbon dioxide exit the leaves of a plant through the __.
pistil
stomata
leaf
stem
A food absorbing structure in a seed is called a(n) __.
leaf
pistil
stomata
cotyledon
The female reproductive structure of a flower is called the __.
pistil
stomata
monocot
root
Which is the function of the root cap?
promote root growth
absorb water and nutrients
protect root tissues
transport dissolved substances
Which division classifies green moss growing in a stone building?
Bryophyta
Lycophyta
Anthocerophyta
Pterophyta
Which type of fruit is a pineapple?
aggregate fruit
dry fruit
fleshy fruit
multiple fruit
Which is a description of animals?
unicellular, prokaryotic heterotrophs
unicellular, eukaryotic autotrophs
multicellular, prokaryotic autotrophs
multicellular, eukaryotic heterotrophs
Which is an advantage of an exoskeleton?
avoid the need for shedding
increased flexibility
internal support
prevent excess water loss
If the sperm of a male parrotfish is carried away from the female’s eggs by ocean currents, which structure cannot form to begin the life of a new parrotfish?
blastula
embryo
zygote
gastrula
A pseudocoelom is partly lined with tissue derived from the __.
endoderm
ectoderm
mesoderm
Which would you expect to be more complex animals—coelomates or acoelomates?
acoelomates, because they have less wasted space in their body structure
acoelomates, because they have more mesodermal tissue
coelomates, because they store more nutrient-rich fluid in their bodies
coelomates, because they have protected space for specialized organs in their bodies
