The plasma membrane of a protist is called the plasmalemma.
Missing Word
plasmalemma
The plasmalemma is the term used to describe the plasma membrane of protists. Like other plasma membranes, it regulates the passage of substances into and out of the cell.
Question 2
Animals belong to the same supergroup as the kingdom Fungi.
Missing Word
Fungi
Animals and Fungi are both in the Opisthokonta supergroup. This grouping reflects shared evolutionary ancestry based on genetic and structural similarities, such as flagellar structure in some lineages.
Question 3
Flukes are in class Trematoda.
Missing Word
Trematoda
Trematoda is the class within the phylum Platyhelminthes that contains the flukes. These parasitic flatworms are characterized by their flattened body shape and complex life cycles involving multiple hosts.
Question 4
A species of worm in which there are distinct male and female individuals is described as dioecious.
Missing Word
dioecious
Dioecious refers to species where individuals are either male or female, possessing separate sexes. This is in contrast to monoecious or hermaphroditic species, where a single individual has both male and female reproductive organs.
Question 5
Nonseptate hyphae are also called coenocytic.
Missing Word
coenocytic
Coenocytic hyphae lack septa, resulting in a continuous cytoplasmic compartment with multiple nuclei. This multinucleate condition arises from nuclear division without subsequent cell division.
Question 6
Unicellular fungi are called yeasts.
Missing Word
yeasts
Yeasts are unicellular fungi that reproduce primarily through budding or fission. Their single-celled nature distinguishes them from filamentous fungi, which form hyphae.
Question 7
Some fungi have proven medically useful because they can be used to produce antibiotics.
Missing Word
antibiotics
Many fungi, such as Penicillium, naturally produce antimicrobial compounds to compete with bacteria in their environment. These compounds can be isolated and used as antibiotics to treat bacterial infections in humans and animals.
Question 8
Structures in chloroplasts used to synthesize and store starch are called pyrenoids.
Missing Word
pyrenoids
Pyrenoids are protein-containing structures found within the chloroplasts of algae and some hornworts. They play a crucial role in carbon fixation by concentrating CO2 around the enzyme RuBisCO, and they are often associated with starch synthesis and storage.
Question 9
Algae with chloroplasts with three or four membranes are a result of secondary endosymbiosis.
Missing Words
secondary, endosymbiosis
Secondary endosymbiosis occurs when a eukaryotic cell engulfs another eukaryotic cell that already contains a chloroplast. This process results in chloroplasts with three or four membranes, reflecting the multiple engulfment events.