NEET Biology: Questions 593 - 597 of 3146

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Question number: 593

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Stem

MCQ▾

Question

In wood dicotyledons, the arrangement of vessels is either diffuse porous or ring porous or ring porous. Based on these data, which one of the following statements is correct?

Choices

Choice (4) Response

a.

Ring porous vessels conduct more water as they are formed early during development, when the need for water is great.

b.

Ring porous vessels are specialized and are used for conducting more water for a shorter period only, when tyloses occur early in the vessels.

c.

Although diffuse porous vessels are not specialized as ring porous vessels, they conduct more water at all periods and through new xylem vessels added gradually during development.

d.

Diffuse porous vessels carry more water and also faster because of a greater number of small vessels having greater capillary force.

Question number: 594

» Human Physiology » Excretory Products and Their Elimination » Modes of Excretion- Ammonotelism, Ureotelism, Uricotelism

MCQ▾

Question

In man, the urea is mainly produced in

Choices

Choice (4) Response

a.

Liver

b.

Spleen

c.

Gall bladder

d.

Kidney

Question number: 595

» Cell Structure and Function » B Cell Division » Mitosis

MCQ▾

Question

Condensation of chromosomes occurs in

Choices

Choice (4) Response

a.

anaphase

b.

metaphase

c.

prophase I

d.

prophase II

Question number: 596

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Conversion of pyruvic acid into ethyl alcohol is facilitated by the enzymes

Choices

Choice (4) Response

a.

Dehydrogenase

b.

Decarboxylase and dehydrogenase

c.

Carboxylase

d.

Phosphatase

Question number: 597

» Ecology and Environment » Ecosystem » Ecological Services-Carbon Fixation, Pollination, Oxygen Release

MCQ▾

Question

Succulent xerophytes are likely to be found in

Choices

Choice (4) Response

a.

Tundra

b.

Desert

c.

Deciduous forest

d.

Tropical rain forest

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