What are bundle sheath extensions? What is their role? 

1 Answer

Answer :

Ans: The extensions of bundle sheath of leaf towards adaxial and abaxial sides of leaf are called as bundle sheath extensions. They help in conduction and providing mechanical strength. 

Related questions

Description : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II is mostly found in the appressed part of granum.

Last Answer : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II ... false. D. If both Assertion and Reason are false.

Description : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to perform, respectively,

Last Answer : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to ... and photorespiration D. Photorespiration and dark reaction

Description : Write the characteristics of bundle sheath cells of `C_(4)` plants

Last Answer : Write the characteristics of bundle sheath cells of `C_(4)` plants

Description : When in plant leaves, chloroplast containing bundle sheath cells surrounds vascular bundles in several layers that anatomy is known as

Last Answer : When in plant leaves, chloroplast containing bundle sheath cells surrounds vascular bundles in several layers that anatomy is known as

Description : In C4 plants, Calvin cycle operates in (a) stroma of bundle sheath chloroplasts (b) grana of bundle sheath chloroplasts (c) grana of mesophyll chloroplasts (d) stroma of mesophyll chloroplasts.

Last Answer : (a) stroma of bundle sheath chloroplasts

Description : The CO2 fixation during C4 pathway occurs in the chloroplast of (a) guard cells (b) bundle sheath cells (c) mesophyll cells (d) spongy parenchyma.

Last Answer : (c) mesophyll cells

Description : Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because (a) effective pumping of CO2 into bundle sheath cells (b) RuBisCO in C4 plants has higher affinity for CO2 (c ... d) the primary fixation of CO2 is mediated via PEP carboxylase. (2005) 65. In sugarcane plant

Last Answer : (d) the primary fixation of CO2 is mediated via PEP carboxylase.

Description : In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of (a) bundle sheath (b) phloem (c) epidermis (d) mesophyll.

Last Answer : (d) mesophyll.

Description : In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in (a) bundle sheath (b) guard cells (c) epidermal cells (d) mesophyll cells

Last Answer : (d) mesophyll cells.

Description : Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 - pyruvate Cell wall C acid ... b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Last Answer : (c) Fixation Decarboxylation Regeneration

Description : In kranz anatomy, the bundle sheath cells have (a) thin walls, many intercellular spaces and no chloroplasts (b) thick walls, no intercellular spaces and large number of chloroplasts ... intercellular spaces and several chloroplasts (d) thick walls, many intercellular spaces and few chloroplasts

Last Answer : (b) thick walls, no intercellular spaces and large number of chloroplasts

Description : Bundle sheath cells (a) are rich in PEP carboxylase (b) lack RuBisCO (c) lack both RuBisCO and PEP carboxylase (d) are rich in RuBisCO.

Last Answer : d) are rich in RuBisCO.

Description : The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground ... (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root

Last Answer : (a) Monocotyledonous stem

Description : Vascular bundles in monocotyledons are considered closed because (a) there are no vessels with perforations (b) xylem is surrounded all around by phloem (c) a bundle sheath surrounds each bundle (d) cambium is absent.

Last Answer : (d) cambium is absent.

Description : What are bulliform cells? What is their role?

Last Answer : Ans: Specialised larger epidermal cells seen in the upper epidermis of grass leaves which store water are called as bulliform cells or motor cells. They help in rolling and unrolling of lamina. 

Description : What is the role of auxin in plants ?

Last Answer : The role of auxin in plants is as follows : Prevents premature fall of fruit. Helps to produce seedless fruit. Auxin is also used for seed germination and weed control.

Description : What is the role of golgi complex in cell division?

Last Answer : Ans: During cell division the vesicles of Golgi are involved in the formation of cell plate at the equatorial region which eventually forms the middle lamellum. In this way Golgi plays a role in cytokinesis. 

Description : In which stage of cell does crossing over occur? What is its role in the origin of species? 

Last Answer : Ans: Pachytene of Meiosis. It brings about variations in the off spring. Continuation of these variations for several generations leads to origin of new species. 

Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Last Answer : a) Reduction in ozone

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))

Description : Bioherbicides have been recommended a) To prevent eco-degradation b) Because of their ready availability c) Because of their cheap rates d) Because of their abundance

Last Answer : a) To prevent eco-degradation

Description : What do you call the programs that are used to find out possible faults and their causes? A) Operating system extensions B) Cookies C) Diagnostic software D) Boot diskettes

Last Answer : Answer : C

Description : How Cloud Federation provides benefits to Cloud providers? a) allows providers to earn revenue from computing resources that would otherwise be idle or underutilized b) enables cloud providers to expand their ... -level agreements (SLAs) into their partner provider's data centers. d) All the above

Last Answer : All the above

Description : How do you care for an orchid?

Last Answer : I have two, and they require almost no care except water. It is the time of year they shed their blossoms so don’t worry. In the spring they will come right back.

Description : Where's can I buy one of those new "Jumbo" Venus Flytrap's?

Last Answer : You can buy them at The Little Shop of Horrors.

Description : What happens to a fully grown fruit tree if it is transplanted?

Last Answer : Fruit trees are so cheap…why not just plant a new one?

Description : What is the mechanism for motion in plants?

Last Answer : dude, I think this can be googled…. ;-P sorry if i sound like a smart alec….

Description : What is cookoo spit?

Last Answer : answer:You’re close. The guys inside the foam are called Spittle Bugs and there are 23,000 species of them More info

Description : What is Cerebellum ?

Last Answer : The segment on the opposite side of the pons is the cerebellum. It stays in a very buoyant state.

Description : Why do fruits fall prematurely ?

Last Answer : Hormone is the chemical substance that is produced in the cell and carried from the place of origin to control the functions of the cell at a distant place. Hormone deficiency causes various problems in ... of fruits. If the plant lacks a hormone called auxin, the fruit will fall off prematurely.

Description : What does tropic movement mean ?

Last Answer : Plants have the same sensory capacity as other organisms. Therefore, the stimulation that externally stimulates the plant body results in the movement and growth of the plant. These movements are called tropical movements. For example, the effect of light is to move towards the light of the stem.

Description : Where is the lenticel located ?

Last Answer : Located on the lenticel stem.

Description : What is the name of the reproductive organ ?

Last Answer : Stolon is the name of the reproductive organ.

Description : What is the upper part of the embryonic root called ?

Last Answer : The upper part of the embryonic root is called the hypocotyl.

Description : What does Patal propagate through ?

Last Answer : Patal propagates through roots.

Description : What is the seed after fertilization ?

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

Description : What happens after fertilization ?

Last Answer : After fertilization, the uterus becomes a result.

Description : title : _

Last Answer : Kachura branch stems are changed for reproduction.

Description : Why Flowers Are Needed ?

Last Answer : The outermost stem of a flower is called a circle. The stalk protects other parts of the flower especially from sun , rain and insects in the twenties. That is why swelling is required.

Description : Why Insects Are Called A Means Of Pollination ?

Last Answer : A means of insect pollination. Insects swarm around to eat honey or attract beautiful colors. At this time the pollen sticks to the carrier. Whenever this carrier sits on another flower of the same species ... to the head of the next flower. This is why insects are called the medium of pollination.

Description : What do you mean by inflorescence ?

Last Answer : The flowers are arranged in a special way on a branch arising from the desired buds at the apex of the stem. This branch with flowers is called inflorescence. It is very important for ... is infinite then irregular inflorescence and if the growth is finite then it is called infinite inflorescence.

Description : Explain "Shimal Animal Pollen Flower" ?

Last Answer : Animal flowers are usually fairly large. However, even though it is small, the flowers are decorated with inflorescences. Their colors are attractive. All these flowers may or may not have an odor. As these features are present in Shimul flower, Shimul flower is also an animal flower.

Description : What does tuber mean ?

Last Answer : Tuber is a type of transformed stem. Some plants swell as a result of food storage at the apex of the lower branches of the soil and form tubers , called tubers. In the future, this tuber works for ... scaly leaf-like (scales) chamber. From each eye an independent plant is born , such as a potato.

Description : Why do cell walls absorb water ?

Last Answer : Plant cell walls absorb water. Because in the case of plants the cell walls are colloidal substances. And different types of colloidal substances exist in plants. Such as starch , gelatin , cellulose etc. These substances are able to absorb water due to their colloidal properties.

Description : Why is Chupri potato called Bulbil ?

Last Answer : The desired buds of chupari potato do not grow properly but take the shape of a lump and after a while fall from the tree and fall to the ground and give birth to new tree. That is why chupari potato is called bulbil.

Description : What is a seed bag ?

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

Description : Why Artificial Organisms Are Reproduced in Non-Flowering Plants ?

Last Answer : As the sexual reproduction of non-flowering plants is not complete, artificial reproduction is done.

Description : Why colorful flowers are helpful for pollination ?

Last Answer : Insects or birds float around in the attraction of the beautiful color of colorful flowers. At this time the pollen sticks to the carrier. When this carrier sits on another flower of the ... the work of pollination is done without their knowledge. So colored flowers are conducive to pollination.

Description : What is organ reproduction ?

Last Answer : Reproduction that takes place when a part of the body is broken or an organ is transformed without producing any kind of asexual molecule or germ cell is called organ reproduction.

Description : What is photosynthesis ?

Last Answer : The process by which green plants prepare sugary foods with carbon dioxide and water in the presence of sunlight is called photosynthesis.