Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids
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Ans. ((a))
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Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above

Description : Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above

Last Answer : Ans. (c)

What is the elongated part ?

Description : What is the elongated part ?

Last Answer : : The branches that originate from the cell body are called elongated parts.

With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Last Answer : Ans. ((a))

Which grains, seeds, nuts,legumes, pulses etc. have the longest or the shortest shelf life?

Description : Which grains, seeds, nuts,legumes, pulses etc. have the longest or the shortest shelf life?

Last Answer : answer:I'm not sure. There seemed to be conflicting and incomplete data on the timing of nutrient depletion. But I did stumble upon emergency food storage It had everything on it but nuts. I would ... very short life span. Because of moisture content and the likely hood they have some form of mold.

The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion

Description : The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion

Last Answer : (d) cohesion and adhesion.

Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes

Description : Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes

Last Answer : Ans. ((b))

Very long pollen with needle shaped structures are found in

Description : Very long pollen with needle shaped structures are found in

Last Answer : Very long pollen with needle shaped structures are found in – Zostera

Dumbell shaped stomata are found in

Description : Dumbell shaped stomata are found in

Last Answer : Dumbell shaped stomata are found in – Members of family Poaceae

According the Korper Kappe thory the upright T-shaped division is found in

Description : According the Korper Kappe thory the upright T-shaped division is found in

Last Answer : According the Korper Kappe thory the upright T-shaped division is found in – Root cap region

Identify the wrong statement in context of heartwood. (a) It is highly durable. (b) It conducts water and minerals efficiently. (c) It comprises dead elements with highly lignified walls. (d) Organic compounds are deposited in it.

Description : Identify the wrong statement in context of heartwood. (a) It is highly durable. (b) It conducts water and minerals efficiently. (c) It comprises dead elements with highly lignified walls. (d) Organic compounds are deposited in it.

Last Answer : (b) It conducts water and minerals efficiently

Identify the wrong statement in context of heartwood: (1) It is highly durable (2) It conducts water and minerals efficiently (3) It comprises dead elements with highly lignified walls (4) Organic compounds are deposited in it

Description : Identify the wrong statement in context of heartwood: (1) It is highly durable (2) It conducts water and minerals efficiently (3) It comprises dead elements with highly lignified walls (4) Organic compounds are deposited in it

Last Answer : 2) It conducts water and minerals efficiently

$ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also called hypnospores.

Description : $ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also called hypnospores.

Last Answer : $ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also ... wrong D. If both As and R are wrong.

What is the thick walled blood vessels?

Description : What is the thick walled blood vessels?

Last Answer : veins

Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is (A) Thin walled having the value of Ao Ai /< 2 (B) Thick walled (C) Having the value of Ao /Ai > 2 (D) Both (B) and (C)

Description : Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is (A) Thin walled having the value of Ao Ai /< 2 (B) Thick walled (C) Having the value of Ao /Ai > 2 (D) Both (B) and (C)

Last Answer : (A) Thin walled having the value of Ao Ai /< 2

For heat flow through very thick walled cylinder, use _________mean radius. (A) Arithmetic (B) Logarithmic (C) Geometric (D) Either (A) or (C)

Description : For heat flow through very thick walled cylinder, use _________mean radius. (A) Arithmetic (B) Logarithmic (C) Geometric (D) Either (A) or (C)

Last Answer : (B) Logarithmic

Pick out the correct statement. (A) Higher is the temperature of the radiating body, higher is the wavelength of radiation (B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder (C) The wavelength corresponding to maximum mono-chromatic emissive power increases with rise in temperature (D) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence

Description : Pick out the correct statement. (A) Higher is the temperature of the radiating body, higher is the wavelength of radiation (B) Logarithmic mean area is used for calculating the heat flow rate ... ) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence

Last Answer : (B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder

The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. (a) B - Capillary-Thin without muscle layer and wall two cell layers thick (b) C - Vein-Thin walled and blood flows in jerks/ spurts (c) D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg (d) A - Artery-Thick walled and blood flows evenly

Description : The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. (a) B - Capillary-Thin without muscle layer and ... blood to heart, pO2 = 95 mmHg (d) A - Artery-Thick walled and blood flows evenly

Last Answer : (c) D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg

Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Description : Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Last Answer : (d) xylem fibres.

Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Description : Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Last Answer : (4) Thick-walled tracheids

Apical bud becomes ________ in mango at fruit bud differentiation : a. Flattened b. Rounded c. Dome shaped d. Elongated

Description : Apical bud becomes ________ in mango at fruit bud differentiation : a. Flattened b. Rounded c. Dome shaped d. Elongated

Last Answer : Dome shaped

Plasmodesmata are (a) locomotory structures (b) membranes connecting the nucleus with plasmalemma (c) connections between adjacent cells (d) lignified cemented layers between cells.

Description : Plasmodesmata are (a) locomotory structures (b) membranes connecting the nucleus with plasmalemma (c) connections between adjacent cells (d) lignified cemented layers between cells.

Last Answer : (c) connections between adjacent cells

A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.

Description : A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.

Last Answer : (b) vascular cambium

A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Last Answer : Ans. ((c))

Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

Description : Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

Last Answer : Ans. ((b))

The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) ......................................................---------------------------......................................................................... BOTANY PRACTICE TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Description : The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) .................................. ... TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Last Answer : Ans. ((a))

When you start to select a range of cells you will see a thick white cross shaped pointer called a?

Description : When you start to select a range of cells you will see a thick white cross shaped pointer called a?

Last Answer : Hi

What are rod shaped structers found in the nucleus of every cell in an organism?

Description : What are rod shaped structers found in the nucleus of every cell in an organism?

Last Answer : Chromosomes

Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

Last Answer : Ans. ((d))

Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Description : Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Last Answer : Ans. ((c))

What are the cells found in the egg apparatus of matured embryosac?

Description : What are the cells found in the egg apparatus of matured embryosac?  

Last Answer : Ans: Two synergids and one egg cell  

What is the seed after fertilization ?

Description : What is the seed after fertilization ?

Last Answer : After fertilization, the egg becomes a seed.

What is a seed bag ?

Description : What is a seed bag ?

Last Answer : Plant body cells change to form a germ-carrying organ, called a granule sac.

Consider the following statements: (1) The seed of pea is exalbuminous (2) The fruit of peach is drupe (3) The seed of tomato is albuminous (4) The fruit of coconut is berry

Description : Consider the following statements: (1) The seed of pea is exalbuminous (2) The fruit of peach is drupe (3) The seed of tomato is albuminous (4) The fruit of coconut is berry

Last Answer : Ans. ((b))

Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration rate of the germinating seed increases along with the increased enzymatic activity (3) The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases

Description : Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration ... The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases

Last Answer : Ans. ((b))

In germinating castor seed the RQ is (a) One (b) More than one (c) Less than one (d) Infinite

Description : In germinating castor seed the RQ is (a) One (b) More than one (c) Less than one (d) Infinite

Last Answer : Ans. ((c))

The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because: (a) Hybrid vigour is not long standing due to inbreeding depression (b) They are not allowed to grow their own seed (c) It is always associated with 4ncreased heterozygosity (d) Government has accepted Dunkel’s proposals

Description : The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because: (a) Hybrid vigour is not long standing due to inbreeding ... (c) It is always associated with 4ncreased heterozygosity (d) Government has accepted Dunkel's proposals

Last Answer : Ans. ((a))

In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Last Answer : c) seed is naked

Describe the various outgrowths of seed.

Description : Describe the various outgrowths of seed.

Last Answer : Ans: The outgrowths of seed are Caruncle and Aril. Caruncle: It is developed from integumentary cells of micropylar region. It is spongy and helps in absorbing water during seed germination. It is seen in ... commonly called as mace and is used as spice. In Pithecalobium, it is edible and spongy. 

Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

Description : Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

Last Answer : c) Seed-borne disease

The instrument, which is used for sowing of seed with fertilizer together at a time, is a)Seed drill b) Dibbler c) Seed sowing behind plough d) Ferti-cum Seed drill

Description : The instrument, which is used for sowing of seed with fertilizer together at a time, is a)Seed drill b) Dibbler c) Seed sowing behind plough d) Ferti-cum Seed drill

Last Answer : d) Ferti-cum Seed drill 

Seed treatment with Vitavex is the main controlling method of a) Loose smut b) Rust c) Downy mildew d) All of these

Description : Seed treatment with Vitavex is the main controlling method of a) Loose smut b) Rust c) Downy mildew d) All of these 

Last Answer : d) All of these 

Cryopreservation is a technique used for a) Crystallization of food b) Food packing c) Seed saving d) Preservation of excess production of vegetables

Description : Cryopreservation is a technique used for a) Crystallization of food b) Food packing c) Seed saving d) Preservation of excess production of vegetables

Last Answer : c) Seed saving

Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains

Description : Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains

Last Answer : a. Weathering of rocks

What are tissue made up of interconnected elongated cells that contract and relax called?

Description : What are tissue made up of interconnected elongated cells that contract and relax called?

Last Answer : These are called "muscles".

The following statement(s) is/are true concerning host defense mechanisms to intraabdominal infection. a. Bacterial clearance can occur via translymphatic absorption b. Phagocytic activity and bacterial killing can occur via resident phagocytic cells and an influx of PMNs c. A fibrinogen-rich inflammatory exudate is released into the peritoneal cavity, trapping large numbers of bacteria and other particulate matter d. Perforations of a bowel may be walled off but are seldom sealed by the omentum and other mobile viscera

Description : The following statement(s) is/are true concerning host defense mechanisms to intraabdominal infection. a. Bacterial clearance can occur via translymphatic absorption b. Phagocytic activity and bacterial killing can ... may be walled off but are seldom sealed by the omentum and other mobile viscera

Last Answer : Answer: a, b, c The introduction of microorganisms into the normally sterile peritoneal environment invoke several potent specialized host antimicrobial defense mechanisms. Bacterial clearance, ... the contaminated enteric contents walled off, preventing continued soilage of the peritoneal cavity

(CBSE 2011): A permanent slide shows thin walled isodiametric cells with a large vacuole. The slide contains: (a) Parenchyma cells (b) Nerve cells (c) Sclerenchyma cells (d) Collenchyma cells

Description : (CBSE 2011): A permanent slide shows thin walled isodiametric cells with a large vacuole. The slide contains: (a) Parenchyma cells (b) Nerve cells (c) Sclerenchyma cells (d) Collenchyma cells

Last Answer : (a) Parenchyma cells

Rod shaped bacteria is called - (1) Bacillus (2) Spirillum (3) Coccus (4) Coma

Description : Rod shaped bacteria is called - (1) Bacillus (2) Spirillum (3) Coccus (4) Coma

Last Answer : (1) Bacillus Explanation: Bacillus is a genus of Grampositive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, ... environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.

Rod shaped bacteria is called (1) Bacillus (2) Spirillum (3) Coccus (4) Coma

Description : Rod shaped bacteria is called (1) Bacillus (2) Spirillum (3) Coccus (4) Coma

Last Answer : Bacillus