Which of the following is most likely an example of convergent evolution? |
A |
Traits used to determine relatedness among organisms must __________. |
C |
___________ are thought to be the first single-celled organisms. |
Protobionts |
______________ are organized cluster droplets of protein and carbohydrates. |
Coacervates |
_______________ are suggested as one possible form of early protobiont. |
Coacervates |
What are the 3 domains of life? |
Bacteria Archaea Eukarya |
Gram-_________ bacteria have a thin peptidoglycan layer with an outer membrane |
negative |
Gram-_________ bacteria have a thick peptidoglycan layer with no outer membrane. |
positive |
Which microorganism is often found associated symbiotically with the roots of bean plants? A)Cyanobacteria |
B |
When cleaning the oil immersion lens, you should use only the following two items: |
B |
Once gram-staining and rinsing are complete, you will dry the slide by _______. |
D |
When you use the higher magnifications on the microscope, focal adjustments should be made using the _________. |
C |
Given that penicillin is an antibiotic that inhibits enzymes from catalyzing the synthesis of peptidoglycan, which prokaryotes should be most vulnerable to inhibition by penicillin? |
A |
True/False: |
False |
Which of the following protists are in the same supergroup as land plants? |
D |
_____________ are commonly known as red algae. |
Rhodophyta |
_____________ are commonly known as green algae. |
Chlorophyta |
_____________ are characterized by sac-like vesicles called alveoli. |
Alveolata |
The supergroup Alveolata is comprised of what two groups? |
Dinoflagellates Paramecium |
_____________ possess a skeleton made of cellulose, two flagella for locomotion, and are responsible for Florida’s annual "red tide." |
Dinoflagellates |
____________ are single-celled heterotrophic protists that move using cilia that cover their bodies. |
Paramecium |
Supergroup _____________ are named for the straw-like hairs that line surface of their flagella. |
Stramenopila |
Supergroup Stramenopila is composed of what two groups? |
Bacillariophyceae (Diatoms) Phaeophyceae (Brown Algae) |
The Supergroup Rhizaria is composed of what two groups? |
Radiolaria Foraminifera |
Several groups of flagellates and amoebae that have thin, hairlike extension of their cytoplasm-known as filose pseudopodia- are classified into the Supergroup ___________. |
Rhizaria |
The Supergroup __________ is characterized by phagocytosis and locomotion via cytoplasmic streaming; this group also includes "slime molds." |
Amoebozoa |
Supergroup _____________ includes fungi, animals, and two protist groups. |
Opisthokonta |
_______________ are protists most closely related to animals. |
Choanoflagellates |
Because they are mostly clear, you may need to lower the __________ when trying to view the amoebae under the microscope. |
C |
True/False: |
True |
Which member of Kingdom Protista is the closest relative to the land plants? |
D |
When viewing protists in this lab, applying a drop of __________ may be necessary to slow the movement of the organisms so they are more easily viewed. |
methyl-cellulose |
The largest species in Kingdom Protista belongs to Supergroup ______________. |
Stramenopila (the brown algae) |
Most dinoflagellates possess heavy plates made of what substance? |
A |
In Phylum Bryophyta, the ____________ generation is dominant: whereas in Phylum Pteridophyta, the __________ generation is dominant. |
gametophyte sporophyte |
The __________ and ___________ are both reproductive structures of liverworts. |
antheridia archegonia |
True/False: |
False |
Which phylum of plants is the most abundant on Earth today? |
Anthophyta |
Which gymnosperm is often confused with a palm tree? |
Cycads |
Meiosis occurs within what structure during the pine tree life cycle? |
C |
A botanist discovers a new species of land plant with a dominant sporophyte generation, chlorophylls a and b,and cell walls made of cellulose. In assigning this plant to a phylum, which of the following traits, would be LEAST useful? |
D |
The tomato you examine in the lab develops from what structure in an Angiosperm? |
Ovary |
All angiosperms belong to which phylum? |
B |
There is/are ___________ phyla of gymnosperms. 1 |
3 |
BIO II Midterm
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