laboursonline – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 23

Which of the following plants does not have independent and free-living male and female gametophytes?

1. Funaria
2. Pteris
3. Cedrus
4. Polytrichum

✅ Correct Answer: 3

Algae are further classified into different classes based on which of the following characteristics?

1. Types of pigments
2. Composition of cell wall
3. Thallus organization
4. Food reserve

✅ Correct Answer: 1

Which of the following differentiates conifers from grasses?

1. Absence of pollen tubes
2. Lack of xylem tracheids
3. Seeds are produced from ovules
4. endosperm formation without fertilization

✅ Correct Answer: 4

Plant diversification is a result of

1. seed dispersal
2. suddenly appeared
3. abrupt mutations
4. a long period of evolutionary changes

✅ Correct Answer: 4

Domination of angiosperms on land due to

1. domestication
2. self-pollination
3. a large number of seeds
4. adaptability in diverse habitats

✅ Correct Answer: 4

A quality of angiosperms without any exception is

1. autotrophic nutrition
2. secondary growth
3. double fertilization
4. presence of vessels

✅ Correct Answer: 3

Which of the following is a characteristic of bryophytes?

1. They possess chloroplasts
2. They have archegonia
3. The plant body is thalloid
4. All of the above

✅ Correct Answer: 4

Which of the following characteristics differentiates bryophytes from algae?

1. They lack vascular tissue
2. The plant body is thalloid
3. They have chloroplasts
4. They possess archegonia

✅ Correct Answer: 4

Which of the following differentiates pteridophytes from bryophytes and thallophytes?

1. Alternation of generation
2. Archegonia
3. Motile antherozoids
4. Vascular tissues

✅ Correct Answer: 4

A good alternative to biogas is

1. Charcoal
2. Coal
3. Oil and petroleum
4. Fuel wood

✅ Correct Answer: 4

Pick the incorrect pair

1. Ethanol used as gasoline
2. Biogas produced from dung
3. Animal energy used most efficiently
4. Latex source of liquid hydrocarbons

✅ Correct Answer: 3

Natural gas, petrol and coal are this type of fuel

1. liquid fuels
2. fossil fuels
3. electrical fuels
4. biofuels

✅ Correct Answer: 2

Solar energy transducer is

1. Chlorella
2. Orobanche
3. Rhizobium
4. Agaricus

✅ Correct Answer: 1

An ideal good fuel can be attained from

1. Mangifera indica
2. Michelia excelsa
3. Dalbergia sissoo
4. Bauhinia racemosa

✅ Correct Answer: 3

Non-renewable resource is

1. minerals and animals
2. plants and animals
3. minerals and fossils
4. fishes and planktons

✅ Correct Answer: 3

Petroplants was recognized first by

1. M.Calvin
2. Slack and Hatch
3. Darwin
4. Lamarck

✅ Correct Answer: 1

Maximum energy can be extracted from wood through

1. Cracking
2. Gasification
3. Direct burning
4. Biomass

✅ Correct Answer: 2

This is a major source of liquid hydrocarbon

1. Solanum tuberosum
2. Euphorbia antisyphilitica
3. Cocos nucifera
4. Calotropis gigantea

✅ Correct Answer: 2

These bacterial groups are exploited in the production of biogas

1. Eubacteria
2. Organotrophs
3. Methanotrophs
4. Methanogens

✅ Correct Answer: 1

Which of the following is the correct sequence of electron acceptors in ETS for production of ATP?

1. Cyt b, c, a, a3
2. Cyt a, a, b, c
3. Cyt c, b, a, a3
4. Cyt b, c, a3, a

✅ Correct Answer: 1

Which of the following terminal cytochromes is responsible for donating electrons to oxygen?

1. Cyt a3
2. Cyt b
3. Cyt c
4. Cyt a1

✅ Correct Answer: 1

Electron transport system (ETS) is present in which of the following parts of mitochondria?

1. Inner membrane
2. Outer membrane
3. Matrix
4. Stroma

✅ Correct Answer: 1

Which of the following is the first complex (Complex I) of ETS?

1. NADH dehydrogenase
2. Cytochrome aa3
3. Cytochrome bc1
4. ATP synthase

✅ Correct Answer: 1

Which of the following is the Complex III of ETS?

1. NADH dehydrogenase
2. Cytochrome aa3
3. Cytochrome bc1
4. ATP synthase

✅ Correct Answer: 3

Ubiquinone transfers its electrons to

1. Complex I
2. Complex II
3. matrix
4. Cyt c

✅ Correct Answer: 4

In which part of the cell, oxidative phosphorylation takes place?

1. Inner mitochondrial membrane
2. Outer mitochondrial membrane
3. Grana of chloroplast
4. Stroma of chloroplast

✅ Correct Answer: 1

Cytochromes are present in

1. lysosomes
2. mitochondrial matrix
3. cristae of mitochondria
4. outer membrane of mitochondria

✅ Correct Answer: 3

ATP synthesis by ATP synthase is driven by the movement of

1. protons
2. NADH
3. electrons
4. All of the above

✅ Correct Answer: 1

Oxidative phosphorylation results in the formation of

1. Oxygen
2. ADP
3. ATP + H2O
4. NADH

✅ Correct Answer: 3

Which of the following families is characterised by trimerous flowers, superior and trilocular ovary with axile placentation?

1. Cucurbitaceae
2. Solanaceae
3. Liliaceae
4. Compositae

✅ Correct Answer: 3

Fruits of the solanaceae family are

1. Capsule or berry
2. Pod
3. Drupe
4. Siliqua

✅ Correct Answer: 1

Abelmoschus esculentus belongs to which of the following families?

1. Brassicaceae
2. Malvaceae
3. Liliaceae
4. Cucurbitaceae

✅ Correct Answer: 2

Which of the following is incorrect for Fabaceae?

1. Actinomorphic flower
2. Monocarpellary superior ovary
3. Vexillary aestivation
4. Legume fruit

✅ Correct Answer: 1

Tetradynamous stamen is a characteristic feature of

1. Cruciferae
2. Malvaceae
3. Solanaceae
4. Liliaceae

✅ Correct Answer: 1

Obligately placed superior ovary is the characteristic of

1. Fabaceae
2. Brassicaceae
3. Solanaceae
4. Compositae

✅ Correct Answer: 3

Compositae is characterized by which of the following inflorescences?

1. Hypanthodium
2. Capitulum
3. Iodicule
4. Perianth

✅ Correct Answer: 2

Diadelphous stamens are found in

1. Fabaceae
2. Ranunculaceae
3. Malvaceae
4. Poaceae

✅ Correct Answer: 1

A floral formula does not tell about

1. ovary position
2. whorls of floral parts
3. number of floral parts
4. placentation and aestivation

✅ Correct Answer: 4

Which of the following flowers is perigynous?

1. Hibiscus
2. Rose
3. Cucumber
4. Guava

✅ Correct Answer: 2

Axile placentation is not found in

1. Malvaceae
2. Liliaceae
3. Solanaceae
4. Fabaceae

✅ Correct Answer: 4

Synandrous condition of stamen is commonly found in which of the following families?

1. Rosaceae
2. Malvaceae
3. Umbelliferae
4. Cucurbitaceae

✅ Correct Answer: 4

Staminodes are commonly found in?

1. Caesalpinioideae
2. Papilionatae
3. Cruciferae
4. Malvaceae

✅ Correct Answer: 1

Potato, tomato and brinjal belong to

1. Brassicaceae
2. Malvaceae
3. Solanaceae
4. Liliaceae

✅ Correct Answer: 3

Which of the following is the inflorescence of Solanum nigrum?

1. Cymose
2. Catkin
3. Racemose
4. None of the above

✅ Correct Answer: 1

What is the placentation in the unilocular ovary with a single ovule?

1. Axile
2. Free central
3. Basal
4. Marginal

✅ Correct Answer: 3

Half-inferior ovary and perigynous flowers are present in

1. Cucumber
2. Guava
3. Brinjal
4. Plum

✅ Correct Answer: 4

Which of the following has zygomorphic flowers?

1. Tomato
2. Gulmohar
3. Mustard
4. Datura

✅ Correct Answer: 2

Petals of which of the following flowers form a keel?

1. Cassia
2. Gulmohar
3. Bean
4. Calotropis

✅ Correct Answer: 3

The best description of the group of animals to which Sycon belongs is

1. acellular or unicellular
2. multicellular possessing tissue organization where the body cavity is absent
3. multicellular with a gastrovascular system
4. multicellular without any tissue organization

✅ Correct Answer: 4

If a sponge is chopped into small pieces, this happens

1. some of the pieces forms organs
2. every piece forms a sponge
3. this will differentiate
4. it dies

✅ Correct Answer: 2