OAU POST UTME PRACTICE: Biology Quiz 1

Created by

Oluwaferanmi Akinyele

OAU POST UTME PRACTICE: Biology Quiz 1

Hi, I hope you have read well, this questions are to test what you have read and help you remember.
It consists of 20 multiple choice questions for 10mins, all from OAU Post UTME Past questions and OAU Predegree Past Questions. This are the type of questions you should be expecting in your real exam.

Goodluck.❤️

1 / 20

Mitotic metaphase is

the second stage of mitosis

where sister chromatids aligned on the equatorial plate

the third stage of mitosis

where chromosomes become sister chromatids

2 / 20

The difference between an ecological niche and a habitat is that ____

The habitat is the address of the species and the ecological niche is the profession of the species

The habitat is the environment of the species and the ecological niche is the strategies of the species

The habitat is the habit of the species and the ecological niche is the resources of the species

The habitat is the home of the species and the ecological niche is the special habitat of the species

Ecological niche combines the idea of spatial habitat with the functional relationships of the organism. An organism’s niche thus describes both its location and job (e.g. pollinator, decomposer, predator e.t.c within a particular community or ecosystem.
Habitat refers to a place where an organism lives naturally.
The correct option is A

Ecological niche combines the idea of spatial habitat with the functional relationships of the organism. An organism’s niche thus describes both its location and job (e.g. pollinator, decomposer, predator e.t.c within a particular community or ecosystem.
Habitat refers to a place where an organism lives naturally.
The correct option is A

3 / 20

The following are examples of flatworms except for

Taenia

Fasciola hepatica

Wuchereria bancrofti

Schistosorna

Wuchereria bancrojii
The correct option is D
is a nematode
(roundworm) which invade the lymphatic vessel to cause filariasis or in a chronic condition, it muy result in elephantiasis. The vector is u mosquito.
The correct option is C

Wuchereria bancrojii
The correct option is D
is a nematode
(roundworm) which invade the lymphatic vessel to cause filariasis or in a chronic condition, it muy result in elephantiasis. The vector is u mosquito.
The correct option is C

4 / 20

What led to different biomes or zones of vegetation in Nigeria?

Differences in the quantity of climate

Differences in the quantity of vegetation

Differences in the quantity of temperature

Differences in the quantity of rainfall

Generally, the quantity of rainfall in Nigeria and worldwide determines to a large extent the type of vegetation of each biome or habitat.
Where rainfall abundantly throughout the year, the vegetation is dense rainforest.
The correct option is D.

Generally, the quantity of rainfall in Nigeria and worldwide determines to a large extent the type of vegetation of each biome or habitat.
Where rainfall abundantly throughout the year, the vegetation is dense rainforest.
The correct option is D.

5 / 20

High altitudes are associated with all of the following except

Increased wind speeds

Lower average temperature

Lower precipitation

greater diurnal temperature range

High altitude is associated with lower average temperature and a greater diurnal temperature, high temperature (including snow), increase wind speed, more intense radiation, lower atmospheric pressure all of which have influence on plants and animal life. Note that high altitude is associated with high precipitation and not lower precipitation.
The correct option is C

High altitude is associated with lower average temperature and a greater diurnal temperature, high temperature (including snow), increase wind speed, more intense radiation, lower atmospheric pressure all of which have influence on plants and animal life. Note that high altitude is associated with high precipitation and not lower precipitation.
The correct option is C

6 / 20

When two organisms struggle for the same resources which are scare, it is _____

Commensalism

Saprophytism

Competition

Mutualism

Competition occurs when two organism struggles for the same resources which are scarce. Two types of competition
• Intraspecific competition is a type of competition between individuals of the same species.
• Interspecific competition is a type of competition between individuals of different species.
The correct option is C

7 / 20

The inner membrane of the mitochondria which is folded gives rise to a series of partitions called

Matrices

Cristae

Stromae

Plasmalemma

The mitochondria are double-membrane envelopes. The region between the outer and inner membranes, which is filled with liquid, is known as the outer compartment. The inner membrane has numerous folds called cristae.
Cristae are the sites of ATP synthesis, and their folded structure greatly increases the surface area where ATP synthesis occurs.
Transport proteins, molecules called electron transport chains, and enzymes that synthesize ATP are among the molecules embedded in the cristae. The cristue enclose a liquid-filled region known as the inner compartment, or matrix, which contains a large number of enzymes that are used in the process of acrobic respiration.

The correct option is B

The mitochondria are double-membrane envelopes. The region between the outer and inner membranes, which is filled with liquid, is known as the outer compartment. The inner membrane has numerous folds called cristae.
Cristae are the sites of ATP synthesis, and their folded structure greatly increases the surface area where ATP synthesis occurs.
Transport proteins, molecules called electron transport chains, and enzymes that synthesize ATP are among the molecules embedded in the cristae. The cristue enclose a liquid-filled region known as the inner compartment, or matrix, which contains a large number of enzymes that are used in the process of acrobic respiration.

The correct option is B

8 / 20

A bacterial cell differs from the eukaryotic cell by having no

Cell wall

Nuclear material

Cell membrane

nuclear membrane

Prokaryotic cell (e.g. bacteria cells, blue-green algae) difter from eukaryotic cells by having no nuclear membrane. In a prokaryotic cell, nuclear materials are not enclosed in the well defined nuclear membrane, unlike eukaryotic cells where nuclear materials are clearly separated from the cytoplasm by means of the nuclear membrane. A form of advancement over the prokuryotic cell.

Prokaryotic cell (e.g. bacteria cells, blue-green algae) difter from eukaryotic cells by having no nuclear membrane. In a prokaryotic cell, nuclear materials are not enclosed in the well defined nuclear membrane, unlike eukaryotic cells where nuclear materials are clearly separated from the cytoplasm by means of the nuclear membrane. A form of advancement over the prokuryotic cell.

9 / 20

Which of the following organisms belong to the group referred to as sponges

none of the options

Ascaris

Tacnia

Nereis

Sponges are simple aquatic invertebrates that do not move about but are attached to rocks or shells. They live in colonies. They are primitive multicellular animals with symmetrical bodies.
Ascaris is a genus of parasitic nematode worm known as the small intestinal roundworms which are a type of helmith.
Taenia is a genus of tapeworm that include some important parasites of livestock. They are morphologically characterized by a ribbonlike body composed of a series of a segment called proglottides.
Nereis is a group of polychaete worms in the family Neridae. It comprises many species, most of which are marine including the sandworm.
The correct option is D

Sponges are simple aquatic invertebrates that do not move about but are attached to rocks or shells. They live in colonies. They are primitive multicellular animals with symmetrical bodies.
Ascaris is a genus of parasitic nematode worm known as the small intestinal roundworms which are a type of helmith.
Taenia is a genus of tapeworm that include some important parasites of livestock. They are morphologically characterized by a ribbonlike body composed of a series of a segment called proglottides.
Nereis is a group of polychaete worms in the family Neridae. It comprises many species, most of which are marine including the sandworm.
The correct option is D

10 / 20

The most common species found in the
Mangrove Vegetation is

Rhizophora racemoxa

Terminalia superb

Avicenia

Triplochion scleroxylon

Mangrove vegetation occurs in the Niger -Delta It thrives in marine and brackish habitat.
Mangrove vegetation in Nigeria is dominated by red mangrove. Rhizophora racemosau and
Laguncularia racemosa. These biomes is characterized by heavy rainfall almost throughout the year.
The correct option is A

Mangrove vegetation occurs in the Niger -Delta It thrives in marine and brackish habitat.
Mangrove vegetation in Nigeria is dominated by red mangrove. Rhizophora racemosau and
Laguncularia racemosa. These biomes is characterized by heavy rainfall almost throughout the year.
The correct option is A

11 / 20

The inner membrane of the mitochondria which is folded gives rise to a series of partitions called

Matrices

Cristae

Stromae

Plasmalemma

The mitochondria are double-membrane envelopes. The region between the outer and inner membranes, which is filled with liquid, is known as the outer compartment. The inner membrane has numerous folds called cristae.
Cristae are the sites of ATP synthesis, and their folded structure greatly increases the surface area where ATP synthesis occurs.
Transport proteins, molecules called electron transport chains, and enzymes that synthesize ATP are among the molecules embedded in the cristae. The cristue enclose a liquid-filled region known as the inner compartment, or matrix, which contains a large number of enzymes that are used in the process of acrobic respiration for classification in animals especially lower animal and not used for classification in plants.
Fucoxanthin is merely a type of pigment not a means of classification or grouping of piants
The correct option is D

The mitochondria are double-membrane envelopes. The region between the outer and inner membranes, which is filled with liquid, is known as the outer compartment. The inner membrane has numerous folds called cristae.
Cristae are the sites of ATP synthesis, and their folded structure greatly increases the surface area where ATP synthesis occurs.
Transport proteins, molecules called electron transport chains, and enzymes that synthesize ATP are among the molecules embedded in the cristae. The cristue enclose a liquid-filled region known as the inner compartment, or matrix, which contains a large number of enzymes that are used in the process of acrobic respiration for classification in animals especially lower animal and not used for classification in plants.
Fucoxanthin is merely a type of pigment not a means of classification or grouping of piants
The correct option is D

12 / 20

One of the following is not useful in the grouping of organisms?

Pigmentation

Food reserve

Flagellation

Fucoxanthin

Flagellation menning the presence or absence of flagellum in an organism. And it is often found in animal rather than a plant. It is used for classification in animals especially lower animal and not used for classification in plants.
Fucoxanthin is merely a type of pigment not a means of classification or grouping of piants
The correct option is D

Flagellation menning the presence or absence of flagellum in an organism. And it is often found in animal rather than a plant. It is used for classification in animals especially lower animal and not used for classification in plants.
Fucoxanthin is merely a type of pigment not a means of classification or grouping of piants
The correct option is D

13 / 20

Which of the following is a complete food chain?

Snail> Birds>Snake>Bagle

Grass> Grasshopper> Toad> Snake> Hawk

Grasshopper> Lizard> Hawk

Grass> Snake> Lion> Bufallo.

Food chain is the pathway along which food energy is transferred from trophic level to trophic level, beginning with producers.
Grass → Grasshopper → Toad → Snake → Hawk
The correct option is B

Food chain is the pathway along which food energy is transferred from trophic level to trophic level, beginning with producers.
Grass → Grasshopper → Toad → Snake → Hawk
The correct option is B

14 / 20

non-seed plants does not include

bacteria

fungi

bryophyte

gymnosperm

Seedless plants include bryophyles, (mosses & liverwort), pteridophytes (e.g. fern plant), thallophyles (c.g. red, brown & green algac).
Gymnosperms bear seed which is naked and are only borne on special compartment called cones (e.g. conifers).
Fungi is not a plant; it belongs to a separate kingdom. Bacteria are not classified as a plant as they also belong to a separate kingdom (moncran).
The correct option is D

Seedless plants include bryophyles, (mosses & liverwort), pteridophytes (e.g. fern plant), thallophyles (c.g. red, brown & green algac).
Gymnosperms bear seed which is naked and are only borne on special compartment called cones (e.g. conifers).
Fungi is not a plant; it belongs to a separate kingdom. Bacteria are not classified as a plant as they also belong to a separate kingdom (moncran).
The correct option is D

15 / 20

The energy flow through a grazing chain is

cyclic

situational

unidirectional(d)

Transitional

Basically, there are two types of food chain; grazing food chain and detritus food chain.
Grazing food chain starts with green plants which are the producers. The green plants or producers are grazed by herbivorous animals which are further eaten by camivores. The following are true of grazing chain;
• Food chain fixes inorganic nutrients
• The chain begins with green plants (producers) at the first trophic level.
• Energy for this chain come from the such
• It consists of al macroscopic organisms
• They do not help in nutrient cycle, energy flow is unidirectional
Detritus food chain starts with dead organic matter which is eaten by animals which is turn are eaten by other animals in the soil, a large amount of energy flows through the detritus food chain.
The following are true of detritus chain;
• The chain begins with detritivores at the first trophic level
• It consists of subsoil organism.
• This food chain takes up energy from the detritus, ensuring maximum utilization and minimum wastage
• Energy for detritus
chain comes from
remains of detritus.
• There is an involvement of nutrient cycle, energy flow is cyclic
NOTE: Both pathways are important in accounting for the energy burget of the ecosystem.
The correct option is C

16 / 20

Which of these statements is incorrect?

Mitosis occurs during gamete formation in sex organs

Mitosis occurs during growth

There is only one cell division in mitosis

Two daughter cells are formed in mitosis.

Meiosis occurs during gamete formation in sex-organs.
The correct option is A

Meiosis occurs during gamete formation in sex-organs.
The correct option is A

17 / 20

Cells were first described by Robert Hooke in the ycar

1774

1667

1665

1675

The first observations of cells were made in
1665 by English scientist Robert Hooke, who used the crude microscope of his own invention to examine a variety of objects, including a thin piece of cork.
The correct option is C

The first observations of cells were made in
1665 by English scientist Robert Hooke, who used the crude microscope of his own invention to examine a variety of objects, including a thin piece of cork.
The correct option is C

18 / 20

The basic functional unit in nature is a

Population

Ecosystem

Community

Biome

Ecosystem is a community of organism and their physical environment interacting as an ecology unit. It is the basic functional unit in nature.
The correct option is B.

Ecosystem is a community of organism and their physical environment interacting as an ecology unit. It is the basic functional unit in nature.
The correct option is B.

19 / 20

The Tree Obeche Is

Milicia excela

Terminalia superba

Triplochiton scleroylon

Lophira

Tree Obeche is a tropical tree of West and Central Africa with large palmate leaves.
Latin name: Triplochiton scleroxylon
The correct option is C

20 / 20

The following are ways in which biolic
components of an ecosystem affect one another except

clearing and burning of vegetation

cigarette smoke

tapeworm in man

pollination

Biotic component is the living component of the ecosystem. They involve plants and animals of a community which interact by feeding upon one another and competing for the available supply of such things as water and light as a result, biotic component of an ecosystem can be called organisms.
The correct option is B

Biotic component is the living component of the ecosystem. They involve plants and animals of a community which interact by feeding upon one another and competing for the available supply of such things as water and light as a result, biotic component of an ecosystem can be called organisms.
The correct option is B

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The average score is 43%
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OAU POST UTME PRACTICE: Biology Quiz 1

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OAU POST UTME PRACTICE: Biology Quiz 1

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