Biology Test 360

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Biology Test 360

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Weekly Quiz Competition

Question 1
4 / -1

The epithelial tissue on the inner surface of bronchioles and fallopian tubes is

A
cuboidal

B
glandular

C
squamous

D
Ciliated

Solution

Ciliated epithelium.

Explanation:The inner surface of bronchioles and Fallopian tubes possess ciliated epithelium. In the respiratory tract cilia help to push mucus towards the pharynx. In Fallopian tube the cilia help to move an egg towards the uterus.
Question 2
4 / -1

Select the correct matching of animals, their symmetry, organisation and coelom type.

A
a

B
b

C
c

D
d

Solution

Platyhelminthes are triploblastic, acoelomate organism showing bilateral symmetry. Ctenophores have borads symmetry, are acoelomates having diploblastic organisation. In echinoderms, larvae have bilateral symmetry whiled add have radial symmetry. They are coelomates with triplobla organisation. Annelids are triploblastic, coelomaterorganism showing bilateral symmetry.
Question 3
4 / -1

Which of the following statements is/are correct regarding Class Amphibia?

i. Amphibians have moist skin that assists in respiration and lacks scales.

ii. Amphibians show external fertilization predominantly.

iii. All amphibians undergo complete metamorphosis involving an aquatic larval stage.

iv. Amphibians have a two-chambered heart.

A
i and ii

B
ii and iii

C
i, ii, and iii

D
i and iv

Solution

Statements i, ii, and iii are correct. Amphibians do have moist, scale-less skin that assists in respiration; most exhibit external fertilization, and while many undergo a metamorphic cycle involving an aquatic larval stage, not all amphibian development involves complete metamorphosis, but the statement still holds generally true for the class. Statement iv is incorrect as amphibians have a three-chambered heart, not two.
Question 4
4 / -1

Fill in the blank: In the absence of sunlight, euglenoids can behave like __________ by predating on smaller organisms.

A
Autotrophs

B
Heterotrophs

C
Phototrophs

D
Chemotrophs

Solution

Euglenoids are unique in that they are photosynthetic in the presence of sunlight but can switch to a heterotrophic mode of nutrition in its absence, consuming other smaller organisms. Therefore, the correct answer is Option B, "heterotrophs."
Question 5
4 / -1

What is the primary reason viruses were not included in Whittaker's five kingdom classification?

A
Viruses are typically larger than bacteria.

B
Viruses are considered non-living because they lack cellular structure.

C
Viruses do not reproduce.

D
Viruses contain both DNA and RNA.

Solution

The key reason viruses were not considered living organisms in Whittaker's classification is their lack of cellular structure, rendering them acellular. Unlike living cells, viruses must infect host cells to replicate, as they cannot carry out metabolic processes on their own. This is why Option B is correct. The other options are incorrect: Viruses can reproduce but only inside a host cell (Option C), they are not necessarily larger than bacteria (Option A), and they contain either DNA or RNA, but not both (Option D).
Question 6
4 / -1

Which of the following characteristics is common to members of the Ascomycetes?

A
They primarily reproduce via zoospores.

B
Their mycelium is aseptate and coenocytic.

C
They produce sexual spores known as ascospores within asci.

D
They are known for the absence of any sexual reproduction stages.

Solution

Ascomycetes, commonly known as sac-fungi, are distinguished by their mode of sexual reproduction, where they produce ascospores endogenously within sac-like structures called asci. These asci are often organized into larger fruiting bodies known as ascocarps. This makes Option C the correct answer. Option A is incorrect as zoospores are characteristic of some other fungi groups like Phycomycetes. Option B is also incorrect for Ascomycetes, whose mycelium is typically septate and not coenocytic. Option D is incorrect as it describes Deuteromycetes, not Ascomycetes.
Question 7
4 / -1

Which of the following features is unique to the phylum Arthropoda?

A
Chitinous exoskeleton

B
Presence of a notochord

C
Radial symmetry

D
Water vascular system

Solution

Answer: A. Chitinous exoskeleton

Solution:

Arthropods, which include insects, arachnids, crustaceans, and myriapods, are characterized by their chitinous exoskeleton, jointed limbs, and segmented bodies. The presence of a notochord is unique to Chordata, radial symmetry is a feature of Cnidaria and Echinodermata (in their larval stage), and the water vascular system is specific to Echinodermata
Question 8
4 / -1

Respiratory System Which of the following statements is accurate regarding the respiratory system of frogs?

A
Frogs rely solely on their lungs for respiration in both aquatic and terrestrial environments.

B
Frogs do not use their skin for respiratory gas exchange.

C
In water, frogs use cutaneous respiration, absorbing oxygen directly through their skin.

D
Frogs have a four-chambered heart that enhances their pulmonary respiration efficiency.

Solution

Frogs utilize cutaneous respiration while in water, where oxygen dissolves in water is absorbed directly through their skin. This method complements pulmonary respiration on land, showcasing their dual adaptability.
Question 9
4 / -1

Neural Tissue How do neuroglial cells function within the neural tissue of the central nervous system?

A
They transmit electrical signals throughout the body.

B
Neuroglial cells are primarily responsible for the cognitive functions like thinking and memory.

C
They provide support and protection for neurons and maintain the homeostasis of the neural environment.

D
Neuroglial cells generate and propagate muscle contractions.

Solution

Neuroglial cells support and protect neurons, help in maintaining the homeostasis of the neural environment, and assist in repair processes within the brain and spinal cord, making Option C correct. They do not transmit electrical signals or handle cognitive functions, which are tasks for neurons, nor do they generate muscle contractions.
Question 10
4 / -1

Identify the blanks in the following figures –

A
A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – mucilaginous sheath.

B
A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilaginous sheath.

C
A – Mucilaginous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall.

D
A – Cell membrane, D – Cell wall, C – DNA, D – Heterocyst, E – Mucilaginous sheath.

Solution

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Biology Test 360

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Question 1

cuboidal

glandular

squamous

Ciliated

Solution

Question 2

a

b

c

d

Solution

Question 3

i and ii

ii and iii

i, ii, and iii

i and iv

Solution

Question 4

Autotrophs

Heterotrophs

Phototrophs

Chemotrophs

Solution

Question 5

Viruses are typically larger than bacteria.

Viruses are considered non-living because they lack cellular structure.

Viruses do not reproduce.

Viruses contain both DNA and RNA.

Solution

Question 6

They primarily reproduce via zoospores.

Their mycelium is aseptate and coenocytic.

They produce sexual spores known as ascospores within asci.

They are known for the absence of any sexual reproduction stages.

Solution

Question 7

Chitinous exoskeleton

Presence of a notochord

Radial symmetry

Water vascular system

Solution

Question 8

Frogs rely solely on their lungs for respiration in both aquatic and terrestrial environments.

Frogs do not use their skin for respiratory gas exchange.

In water, frogs use cutaneous respiration, absorbing oxygen directly through their skin.

Frogs have a four-chambered heart that enhances their pulmonary respiration efficiency.

Solution

Question 9

They transmit electrical signals throughout the body.

Neuroglial cells are primarily responsible for the cognitive functions like thinking and memory.

They provide support and protection for neurons and maintain the homeostasis of the neural environment.

Neuroglial cells generate and propagate muscle contractions.

Solution

Question 10

A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – mucilaginous sheath.

A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilaginous sheath.

A – Mucilaginous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall.

A – Cell membrane, D – Cell wall, C – DNA, D – Heterocyst, E – Mucilaginous sheath.

Solution

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