Biology Test 120

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Biology Test 120

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following sequences correctly represents the flow of electrons during photosynthesis?

A
NADPH → O₂ → CO₂

B
H₂O→ NADPH → Calvin cycle

C
H₂O → photosystem I → photosystem II

D
NADPH → electron transport chain → O₂

Solution

During photosynthesis, the electrons flow from H₂O to NADPH in Calvin cycle.
Question 2
4 / -1

Which of the following are the locomotory organelles in amoeba?

A
Setae

B
Cilia

C
Flagella

D
Pseudopodia

Solution

Pseudopodia means false feet that are seen in amoeba.
Question 3
4 / -1

Ruminate endosperm is commonly found in the seeds of

A
Euphorbiaceae

B
Cruciferae

C
Annonaceae

D
Compositae

Solution

Ruminate endosperm is commonly found in the seeds of Annonaceae.
Question 4
4 / -1

Which of the following is not a correct match?

A
Root knot disease – Nematode Heterodera marioni

B
Smut of bajra – Helminthosporium sacchari

C
Covered smut of barley – Ustilago nuda

D
Late blight of potato – Phytophthora infestans

Solution

Covered smut of barley is caused by Ustilago hordei.
Question 5
4 / -1

Which of the following types of cells are not present in an areolar connective tissue?

A
Fibrocytes

B
Histiocytes

C
Chromatophores

D
Chondrocytes

Solution

These are cartilage-forming cells.
Question 6
4 / -1

Which is of the following statements regarding El Nino is NOT true?

A
It is an extension of equatorial current towards the western coast of South America.

B
It is an occasional warm current leading to an increase of about 10o surface water temperature.

C
It develops as a temporary replacement of the usual cold Peruvian current.

D
It causes an increase in planktons, which thrive in the cold Peruvian current.

Solution

It causes an increase in planktons, which thrive in the cold Peruvian current. This is an incorrect statement. El Niño is a climate cycle in the Pacific Ocean with a global impact on weather patterns. The cycle begins when warm water in the western tropical Pacific Ocean shifts eastward along the equator toward the coast of South America. Normally, this warm water pools near Indonesia and the Philippines.
Question 7
4 / -1

Which of the following leptospiral infections is caused by Leptospira pomona?

A
Weil's disease

B
Canicola fever

C
Swineherd's disease

D
Seven day fever

Solution

Swineherd's disease is caused by Leptospira pomona.
Question 8
4 / -1

The correct path of energy flow in an ecosystem is:

A
Producers – carnivores – herbivores – decomposers

B
Producers – herbivores – carnivores – decomposers

C
Herbivores – carnivores – producers – decomposers

D
Herbivores – producers – carnivores – decomposers

Solution

The correct path of energy flow in an ecosystem is: Producers – herbivores – carnivores – decomposers.
Question 9
4 / -1

Trichomes are characteristic of

A
epidermis

B
hypodermis

C
cortex

D
endodermis

Solution

Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Trichomes on plants are epidermal outgrowths of various kinds.
Question 10
4 / -1

Polio is caused by

A
enterovirus

B
paramyxovirus

C
varicella

D
rubeola

Solution

This is the correct option. Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the enterovirus.

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Biology Test 120

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Biology Test 120

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SHARING IS CARING

Question 1

NADPH → O2 → CO2

H2O→ NADPH → Calvin cycle

H2O → photosystem I → photosystem II

NADPH → electron transport chain → O2

Solution

Question 2

Setae

Cilia

Flagella

Pseudopodia

Solution

Question 3

Euphorbiaceae

Cruciferae

Annonaceae

Compositae

Solution

Question 4

Root knot disease – Nematode Heterodera marioni

Smut of bajra – Helminthosporium sacchari

Covered smut of barley – Ustilago nuda

Late blight of potato – Phytophthora infestans

Solution

Question 5

Fibrocytes

Histiocytes

Chromatophores

Chondrocytes

Solution

Question 6

It is an extension of equatorial current towards the western coast of South America.

It is an occasional warm current leading to an increase of about 10o surface water temperature.

It develops as a temporary replacement of the usual cold Peruvian current.

It causes an increase in planktons, which thrive in the cold Peruvian current.

Solution

Question 7

Weil's disease

Canicola fever

Swineherd's disease

Seven day fever

Solution

Question 8

Producers – carnivores – herbivores – decomposers

Producers – herbivores – carnivores – decomposers

Herbivores – carnivores – producers – decomposers

Herbivores – producers – carnivores – decomposers

Solution

Question 9

epidermis

hypodermis

cortex

endodermis

Solution

Question 10

enterovirus

paramyxovirus

varicella

rubeola

Solution

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NADPH → O₂ → CO₂

H₂O→ NADPH → Calvin cycle

H₂O → photosystem I → photosystem II

NADPH → electron transport chain → O₂