22339 + Interview Questions in Biology in Class 11 Page 263 InterviewSolution

13101.	Question :Placentation is basal in Compositae.
Answer» Solution : It is BICARPELLARY ovary, UNILOCULAR, uniovuled with OVULE attached at the base.

Discussion

13102.	Question :Placentation in tomato and lemon is
Answer» MARGINAL AXILE Parietal Free central Answer :B

Discussion

13103.	Question : Placentation in tomato and lemon is
Answer» parietal marginal free-central AXILE Solution :axile

Discussion

13104.	Question :Placentation in pea is
Answer» Marginal Axile SUPERFICIAL PARIETAL ANSWER :A

Discussion

13105.	Question :Placentation in Dianthus is
Answer» AXILE FREE central MARGINAL PARIETAL Answer :B

Discussion

13106.	Question : Placentation :
Answer» SOLUTION :The arrangement of OVULES WITHIN the ovary is KNOWN as PLACENTATION.

Discussion

13107.	Question :Placenta and pericarp are both edible portions in
Answer» APPLE Banana TOMATO Potato ANSWER :C

Discussion

13108.	Question : Placenta is an endocrine tissue. Justify.
Answer» Solution :(i) Human EMBRYO is surrounded by 3 embryonic membranes. The chlorionic villi and uterine tissues form the disc shaped placenta. It is a temporary endocrine organ formed during pregnancy and CONNECTS the foetus to the uterine wall through the umbillical cord. (ii) During preganncy., the placenta acts as a temporary endocrine gland and produces large quantities of human chloronic. Gonadotropin (hCG), human Chorionic Somatomammotropin (hCS) or human Placental Lactogen (hPL). oestrogens and PROGESTERONE which are ESSENTIAL of a normal pregnancy. (iii) A HORMONE called relaxin is also secreted during the later phase of pregnancy which helps in relaxation of the pelvic ligaments at the time of parturition. It should be noted HCG, hPl and relaxin are produced only during pregnancy. (iv) Thus placenta is a endocrine tissue.

Discussion

13109.	Question : Pituitary gland is located in a depression in the sphenoid bone of skull below the brain, so it is also called hypothalamus cerebri. Discuss the following. How does the posterior lobe of pituitary help in osmoregulation?
Answer» Solution :(a) Pituitary gland is commonly called "master gland" of the body because it REGULATES the activity of other endocrine glands such as adrenal gland, THYROID gland, testis and ovary (B) The hypothalamus sends signals to the pituitary gland to release or INHIBIT pituitary hormone releasing factor production thus MAINTAINING Homeostasis of the body. (c) The posterior lobe of pituitary helps in osmoregulation by secreting the hormones namely vasopressin and oxytocin which increases tubular reabsorption of water in the nephrons.

Discussion

13110.	Question : Pituitary gland is considered as the master gland,’’Evaluate the statement with reasons.
Answer» Solution :PITUITARY gland secretes hormones LIKE GH,PRL,TSH,ACH,LTH,FSH,MSH,,etc.,which control all other endocrine glands and so it is KNOWN as the master gland.

Discussion

13111.	Question : Pituicytes are under the control of
Answer» adenohypophysis HYPOTHALAMUS Neurohypophysis collects and stores vasopressin and oxytocin. both a and C Solution :Pituicytes are the cells found in the posterior lobe of pituitary gland. The HORMONES, oxytocin and vasopressin released by pituicytes are ACTUALLY produced by HYPOTHALMUS.

Discussion

13112.	Question : Pituitary gland is commonly called " master gland " of the body .Why?
Answer» Solution :Pituitary GLAND is COMMONLY called ''MASTER gland'' of the body because it regulates the activity of other endocrine GLANDS such as adrenal gland, THYROID gland, testis and ovary.

Discussion

13113.	Question : Pith is present in monocot root.
Answer» ANSWER :TRUE

Discussion

13114.	Question : Pith is small or absent in ........... roots.
Answer» ANSWER :MONOCOT

Discussion

13115.	Question : Pith is small or absent in
Answer» MONOCOT root dicot root monocot stem dicot stem Answer :B

Discussion

13116.	Question : Pith is large and well developed in ............ root .............. .
Answer» ANSWER :MONOCOT

Discussion

13117.	Question : Pith is hollow in
Answer» CUCURBITA STEM Oryza stem WHEAT stem All of these Answer :D

Discussion

13118.	Question : Pith in dicot root/monocot root is often absent.
Answer» ANSWER :DICOT ROOT

Discussion

13119.	Question : Pith cavity occurs in the stem of
Answer» HELIANTHUS Zea MAYS CUCURBITA Dracaena ANSWER :C

Discussion

13120.	Question : Pitcher plant is the common name for ……………. .
Answer» DROSERA NEPENTHES Utricularia DIONAEA ANSWER :B

Discussion

13121.	Question : Pisces and frogs are similar, as they are
Answer» POIKILOTHERMIC amnotes poikilothermic ANAMNIOTES poikilothermic TETRAPODS poikilothermic pentadactyle ANSWER :B

Discussion

13122.	Question : Pissiform cells loaded with zymogen granules can be seen in
Answer» LIVER Pancreas Ovary Kidnety Answer :B

Discussion

13123.	Question : Pinus roots : mycorrhiza :: cycas roots : ......
Answer» SOLUTION :CYANOBACTERIA

Discussion

13124.	Question : Pinus plant has 1st year, 2nd year and 3rdyear cones. In which cone does fertilisation occur?
Answer» SOLUTION :`2^(ND)` YEAR CONE.

Discussion

13125.	Question : Pinus roots are in symbiotic relationship with .................... .
Answer» BLUE green ALGAE MYCORRHIZA Euglena RHIZOBIUM Answer :B

Discussion

13126.	Question : Pinus or Gymnosperms differs from angiosperms in having
Answer» VASCULAR bundles Heterospory Seeds OVULES not ENCLOSED in ovary Solution :PINUS or gymnosperms differs from angiosperms in having ovules not enclosed in ovary.

Discussion

13127.	Question : Pinus exhibits
Answer» POLYEMBRYONY and polycotyledony Zoodiogamy and siphonogamy Unbranched STEM habit Insect pollination Answer :A

Discussion

13128.	Question : Pinocytosis is an example of :
Answer» FACILITATED TRANSPORT active transport ENDOCYTOSIS EXOCYTOSIS SOLUTION :endocytosis

Discussion

13129.	Question : Pinus has
Answer» WINGED POLLEN Winged SEEDS Winged fruit Both A and B Solution :PINUS have winged pollen and winged seeds.

Discussion

13130.	Question : Pineapple is an example of
Answer» SIMPLE FRUIT AGGREGATE fruit multiple fruit FALSE fruit

Discussion

13131.	Question : Pinnae are present in
Answer» APTENODYTES Chameleon Ornithorhynchus Macropus ANSWER :D

Discussion

13132.	Question : Pineal gland : Melatonin :: Somatostatin : ………….
Answer» SOLUTION :HYPOTHALAMUS

Discussion

13133.	Question :Pineaple (anans) fruit develops from
Answer» A unilocular polycarpellary flower A multipistillate SYNCARPOUS flower A cluster of compectly borne FLOWERS on a common axis A multilocular MONOCARPELLARY flower Answer :C

Discussion

13134.	Question : Pineal gland is an endocrine gland ,write its role
Answer» Solution :The PINEAL gland or epiphysis cerebri or conarium is located behind the third ventricle of brain. It is formed of paranchymal cells and interstitial cells It secretes the hormone, melatonin. It plays a CENTRAL role in the regulation of circadian rhythm of our body and maintains normal sleep wake cycle. It also regulates the timing of sexual maturation of GONADS. It also INFLUENCES metabolism, pigmentation, menstrual cycle and DEFENCE mechanism of our body.

Discussion

13135.	Question : ………….pigmentsare alsocalledas shieldpigments.
Answer» CAROTENOIDS CHLOROPHYLL B Chlorophyll b Phycobilines ANSWER :A

Discussion

13136.	Question : Pigment that is predominant in red algae
Answer» FUCOXANTHIN Phycocyanin PHYCOERYTHRIN Chlorophyll d Answer :C

Discussion

13137.	Question : Pick up the correct pair
Answer» Neophron-vulture Aptenodytes-F Corvus-pigeon Pavo-Parrot ANSWER :A

Discussion

13138.	Question : Pick up the correct option Viruses are facultative/obligate parasites.
Answer» SOLUTION :OBLIGATE

Discussion

13139.	Question : Pick up the correct option Viroids contain/lack protein coat
Answer» SOLUTION :LACK PROTEIN

Discussion

13140.	Question : Pick up the correct option The mode of nutrition in Animalia is autotrophic/holozoic
Answer» SOLUTION :HOLOZOIC

Discussion

13141.	Question : Pick up the correct option Keys are based on similar/contrasting characters.
Answer» SOLUTION :CONTRASTING

Discussion

13142.	Question : Pick up the correct option Paramoecium is ciliated/flagellated protozoan.
Answer» SOLUTION :CILIATED

Discussion

13143.	Question : Pick up the correct option Fruiting bodies are distinct/inconspicuous structures which produces spores in fungi.
Answer» SOLUTION :DISTINCT

Discussion

13144.	Question : Pick up the correct option Deuteromycetes reproduces by asexual/sexual spores.
Answer» SOLUTION :ASEXUAL

Discussion

13145.	Question : Pick up the correct option Bacteriophages are virus that infect bacteria/bacteria that infect virus.
Answer» SOLUTION :INFECT BACTERIA

Discussion

13146.	Question : Pick up the correct matching set : {:("A. Snow blindness","1. UV - A"),("B. Chlorofluorocarbons","2. Chemobyl disaster"),("C. 60% green house","3. UV - B"),("D. Methyl isocyante","4. Ozone depletion"),(,"5. "CO_(2)):}
Answer» `{:(A,B,C,D),(1,3, 5, 2):}` `{:(A,B,C,D),(2,3,5,2):}` `{:(A,B,C,D),(3,4,5,2):}` `{:(A,B,C,D),(2,4,5,2):}` ANSWER :C

Discussion

13147.	Question : Pick up the correct option Euglenoids contain protein rich layer called pellicle/cell wall.
Answer» SOLUTION :pelicle

Discussion

13148.	Question : Pick the odd pair
Answer» Aplysia - SEA LEMON Dentalium - tusk shell SEPIA - cuttle FISH Loligo - SQUID Answer :A

Discussion

13149.	Question : Pick the odd pair:
Answer» PORIFERA : spicules Scyphozoan: coral REEF Nematode : pseudocoelomate CESTODA: proglottid SOLUTION :Scyphozoan: coral reef

Discussion

13150.	Question : Pick the odd ones in each of the following groups and select the correct option (i). Renal pelvis, Medullary pyramid, Renal cortex, Renal papilla (ii). Afferent arteriole, Henle's loop, Vasa recta, Efferent arteriole (iii). Glorerular filtration, antidiuretic hormone, Hypertonic urine, collecting duct (iv). Proximal convoluted tubule, distal convoluted tubule, Henle's loop, Renal corpuscle
Answer» `{:("(i)","(ii)","(iii)","(iv)"),("Renal pelvis","HENLE's loop","Collecting duct","DISTAL convoluted TUBULE"):}` `{:("(i)","(ii)","(iii)","(iv)"),("Renal papilla","Afferent arteriole","Antidiuretic hormone","Henle's loop"):}` `{:("(i)","(ii)","(iii)","(iv)"),("Medullary pyramid","Efferent arteriole","Hypertonic urine","Proximal convoluted tubule"):}` `{:("(i)","(ii)","(iii)","(iv)"),("Renal cortex","vasa recta","Glomerular FILTRATION","Renal CORPUSCLE"):}` Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question :Placentation is basal in Compositae.

Question :Placentation in tomato and lemon is

Question : Placentation in tomato and lemon is

Question :Placentation in pea is

Question :Placentation in Dianthus is

Question : Placentation :

Question :Placenta and pericarp are both edible portions in

Question : Placenta is an endocrine tissue. Justify.

Question : Pituitary gland is located in a depression in the sphenoid bone of skull below the brain, so it is also called hypothalamus cerebri. Discuss the following. How does the posterior lobe of pituitary help in osmoregulation?

Question : Pituitary gland is considered as the master gland,’’Evaluate the statement with reasons.

Question : Pituicytes are under the control of

Question : Pituitary gland is commonly called " master gland " of the body .Why?

Question : Pith is present in monocot root.

Question : Pith is small or absent in ........... roots.

Question : Pith is small or absent in

Question : Pith is large and well developed in ............ root .............. .

Question : Pith is hollow in

Question : Pith in dicot root/monocot root is often absent.

Question : Pith cavity occurs in the stem of

Question : Pitcher plant is the common name for ……………. .

Question : Pisces and frogs are similar, as they are

Question : Pissiform cells loaded with zymogen granules can be seen in

Question : Pinus roots : mycorrhiza :: cycas roots : ......

Question : Pinus plant has 1st year, 2nd year and 3rdyear cones. In which cone does fertilisation occur?

Question : Pinus roots are in symbiotic relationship with .................... .

Question : Pinus or Gymnosperms differs from angiosperms in having

Question : Pinus exhibits

Question : Pinocytosis is an example of :

Question : Pinus has

Question : Pineapple is an example of

Question : Pinnae are present in

Question : Pineal gland : Melatonin :: Somatostatin : ………….

Question :Pineaple (anans) fruit develops from

Question : Pineal gland is an endocrine gland ,write its role

Question : ………….pigmentsare alsocalledas shieldpigments.

Question : Pigment that is predominant in red algae

Question : Pick up the correct pair

Question : Pick up the correct option Viruses are facultative/obligate parasites.

Question : Pick up the correct option Viroids contain/lack protein coat

Question : Pick up the correct option The mode of nutrition in Animalia is autotrophic/holozoic

Question : Pick up the correct option Keys are based on similar/contrasting characters.

Question : Pick up the correct option Paramoecium is ciliated/flagellated protozoan.

Question : Pick up the correct option Fruiting bodies are distinct/inconspicuous structures which produces spores in fungi.

Question : Pick up the correct option Deuteromycetes reproduces by asexual/sexual spores.

Question : Pick up the correct option Bacteriophages are virus that infect bacteria/bacteria that infect virus.

Question : Pick up the correct matching set : {:("A. Snow blindness","1. UV - A"),("B. Chlorofluorocarbons","2. Chemobyl disaster"),("C. 60% green house","3. UV - B"),("D. Methyl isocyante","4. Ozone depletion"),(,"5. "CO_(2)):}

Question : Pick up the correct option Euglenoids contain protein rich layer called pellicle/cell wall.

Question : Pick the odd pair

Question : Pick the odd pair: