Q: Which of the following equations correctly represents the ploidy change during mitosis?

$$\text{2n} \rightarrow \text{2n}$$

Q: Which of the following equations represents the outcome of meiosis in a diploid cell?

$$\text{2n} \rightarrow 4 \times \text{n}$$

Question 1

Which of the following is a defining characteristic of protozoa, distinguishing them from other eukaryotes?

Accepted Answer

They are unicellular and lack a cell wall.

Question 2

A scientist observes a microorganism with two nuclei, one controlling metabolism and the other involved in genetic recombination. Which group does this organism most likely belong to?

Accepted Answer

Ciliates

Question 3

Which of the following statements about fungal nutrition is correct?

Accepted Answer

Fungi acquire nutrients by absorption and are mostly saprobes.

Question 4

Which nuclear division process results in four haploid nuclei from a diploid nucleus, and is essential for sexual reproduction in eukaryotes?

Accepted Answer

Meiosis

Question 5

A protozoan is observed to move using lobe-shaped pseudopodia and lacks a shell. Which group does it most likely belong to?

Accepted Answer

Amoebozoa

Question 6

Which of the following equations correctly represents the ploidy change during mitosis?

Accepted Answer

$$	ext{2n} ightarrow 	ext{2n}$$

Question 7

Which group of eukaryotes is defined by the presence of alveoli under their cytoplasmic membrane?

Accepted Answer

Alveolates

Question 8

A patient presents with gastrointestinal symptoms after drinking contaminated water. Microscopic examination reveals a protozoan with two equal-sized nuclei and multiple flagella, lacking mitochondria. Which organism is most likely responsible?

Accepted Answer

Giardia

Question 9

Which of the following is a real-world example of a beneficial association between fungi and plants?

Accepted Answer

Fungi forming mycorrhizae to help plants absorb water and minerals

Question 10

Which of the following best describes the alternation of generations in multicellular algae?

Accepted Answer

A life cycle alternating between haploid and diploid multicellular stages

Question 11

Which of the following is NOT a method of asexual reproduction in eukaryotes?

Accepted Answer

Conjugation

Question 12

Which division of fungi is characterized by the production of zygospores?

Accepted Answer

Zygomycota

Question 13

Which of the following is a distinguishing feature of Euglenozoa?

Accepted Answer

They possess both flagella and chloroplasts.

Question 14

Which of the following equations represents the outcome of meiosis in a diploid cell?

Accepted Answer

$$	ext{2n} ightarrow 4 	imes 	ext{n}$$

Question 15

Which group of protozoa is responsible for causing red tides, which can have significant ecological and health impacts?

Accepted Answer

Dinoflagellates

Question 16

Which of the following is true about lichens?

Accepted Answer

They are partnerships between fungi and photosynthetic microbes.

Question 17

Which of the following is a characteristic of slime molds?

Accepted Answer

They are amoebozoa with lobe-shaped pseudopodia.

Question 18

Which of the following is a correct statement about the reproduction of unicellular algae?

Accepted Answer

They reproduce asexually by mitosis followed by cytokinesis.

Question 19

Which of the following is a function of the macronucleus in ciliates?

Accepted Answer

Control of metabolism, growth, and sexual reproduction

Question 20

Which of the following is a plausible consequence if cytokinesis is postponed or does not occur in some algae and fungi?

Accepted Answer

Formation of multinucleated cells called coenocytes

Classification and Characteristics of Eukaryotes: Protozoa, Fungi, Algae, and Helminths

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