The special modified epidermal cells surrounding stomatal pore are called (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells

The special modified epidermal cells surrounding stomatal pore are called (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells
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Guard cells
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The special modified epiderniai cells surrounding stomatal pore are called - (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells

Description : The special modified epiderniai cells surrounding stomatal pore are called - (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells

Last Answer : (2) Guard cells Explanation: The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.

Specialised epidermal cells surrounding the guard cells are called (a) bulliform cells (b) lenticels (c) complementary cells (d) subsidiary cells

Description : Specialised epidermal cells surrounding the guard cells are called (a) bulliform cells (b) lenticels (c) complementary cells (d) subsidiary cells

Last Answer : d) subsidiary cells.

Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified? A B C D A B C D (a) Subsidiary Epidermal Guard cell Stomatal cell cell aperture (b) Guard cell Stomatal Subsidiary Epidermal aperture cell cell (c) Epidermal Guard cell Stomatal Subsidiary cell cell aperture (d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Description : Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified? A B C D A B C D ... ) Epidermal Guard cell Stomatal Subsidiary cell cell aperture (d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Last Answer : d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Which of the following statements is not true for stomatal apparatus? (a) Guard cells invariably possess chloroplasts and mitochondria. (b) Guard cells are always surrounded by subsidiary cells. (c) Stomata are involved in gaseous exchange. (d) Inner wall of guard cells are thick

Description : Which of the following statements is not true for stomatal apparatus? (a) Guard cells invariably possess chloroplasts and mitochondria. (b) Guard cells are always surrounded by subsidiary cells. (c) Stomata are involved in gaseous exchange. (d) Inner wall of guard cells are thick

Last Answer : (b) Guard cells are always surrounded by subsidiary cells.

(a) Draw a diagram to show open stomatal pore and label on it: (i) guard cells (ii) chloroplast (b) State two functions of stomata. (c) How do guard cells regulate the opening and closing of stomatal pore? -Biology

Description : (a) Draw a diagram to show open stomatal pore and label on it: (i) guard cells (ii) chloroplast (b) State two functions of stomata. (c) How do guard cells regulate the opening and closing of stomatal pore? -Biology

Last Answer : (a) (b) Two functions of stomata are: (i) Exchange of gases between the plant and the atmosphere takes place through stomata. (ii)Transpiration in plants takes place through stomata. ( ... through these stomata, the plant closes these pores when it does not require carbon dioxide for photosynthesis.

In guard cells when sugar is converted into starch, the stomatal pore (a) closes completely (b) opens partially (c) opens fully (d) remains unchanged.

Description : In guard cells when sugar is converted into starch, the stomatal pore (a) closes completely (b) opens partially (c) opens fully (d) remains unchanged.

Last Answer : a) closes completely

How do guard cells regulate opening and closing of stomatal pores ? -Science

Description : How do guard cells regulate opening and closing of stomatal pores ? -Science

Last Answer : The opening and closing of stomatal pores is controlled by the guard cells, when water flows into the guard cells, they swell, become curved and cause the pore to open whereas when the guard cells lose water, they shrink, become straight and close the stomatal pore

Stomatal opening is based on (1) Exosrnosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Description : Stomatal opening is based on (1) Exosrnosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Last Answer : (2) Endosmosis Explanation: According to the K+ ion theory the guard cells absorb K+ ions from the cells around them as they produce ATP (due to photosynthesis) and become ... guard cells become turgid and the stomata opens. Decreasing light intensity and photosynthesis causes Stomatal closing.

The opening and closing of the stomatal pores is a function of the - (1) Guard cells (2) Chloroplast (3) Xylem (4) Phloem

Description : The opening and closing of the stomatal pores is a function of the - (1) Guard cells (2) Chloroplast (3) Xylem (4) Phloem

Last Answer : (1) Guard cells Explanation: The opening and closing of the pores is a function of the guard cells. They swell when water flows into them, causing the stomatal pore to open and likewise, the pore closes if the guard cells shrink.

Which of the following facilitates opening of stomatal aperture? (a) Decrease in turgidity of guard cells (b) Radial orientation of cellulose microfibrils in the cell wall of guard cells (c) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells (d) Contraction of outer wall of guard cells

Description : Which of the following facilitates opening of stomatal aperture? (a) Decrease in turgidity of guard cells (b) Radial orientation of cellulose microfibrils in the cell wall of guard cells (c) ... microfibrils in the cell wall of guard cells (d) Contraction of outer wall of guard cells

Last Answer : (a) Decrease in turgidity of guard cells

Which of the following facilitates opening of stomatal aperture ? (1) Decrease in turgidity of guard cells (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells (3) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells (4) Contraction of outer wall of guard cells

Description : Which of the following facilitates opening of stomatal aperture ? (1) Decrease in turgidity of guard cells (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells (3) Longitudinal ... microfibrils in the cell wall of guard cells (4) Contraction of outer wall of guard cells

Last Answer : (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells

Stomatal opening is based on (1) Exosmosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Description : Stomatal opening is based on (1) Exosmosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Last Answer : Endosmosis

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

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.

In land plants, the guard cells differ from other epidermal cells in having (a) cytoskeleton (b) mitochondria (c) endoplasmic reticulum (d) chloroplasts.

Description : In land plants, the guard cells differ from other epidermal cells in having (a) cytoskeleton (b) mitochondria (c) endoplasmic reticulum (d) chloroplasts.

Last Answer : (d) chloroplasts.

Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –

Description : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –

Last Answer : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as – Mesogenous development

The cells which are closely associated and interacting with guard cells are - (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells

Description : The cells which are closely associated and interacting with guard cells are - (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells

Last Answer : (3) Subsidiary cells Explanation: Guard cells interact physiologically and mechanically with subsidiary cells. Guard cells are those which have chloroplasts and control the opening of stomata. But, subsidiary cells are those which support the guard cells and they do not have chloroplasts.

The cells which are colsely associated and interacting with guard cells are (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells

Description : The cells which are colsely associated and interacting with guard cells are (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells

Last Answer : Subsidiary cells

Which of the following statements regarding fibroblasts and their function in wound healing are true? a. IL-1 has both inhibitory and promotional effects on fibroblast growth b. TNFa stimulates fibroblast collagen synthesis c. IL-1 and TNFa have opposite effects on the healing of bone d. In human clinical trials, EGF (epithelial growth factor) has been demonstrated to accelerate epidermal regeneration in cutaneous wounds

Description : Which of the following statements regarding fibroblasts and their function in wound healing are true? a. IL-1 has both inhibitory and promotional effects on fibroblast growth b. TNFa ... EGF (epithelial growth factor) has been demonstrated to accelerate epidermal regeneration in cutaneous wounds

Last Answer : Answer: a, d IL-1 appears to be important in the process of normal wound repair. IL-1 has been shown to stimulate skin fibroblast and keratinocyte growth, as well as ... that recombinant EGF enhances keratinocyte migration. EGF is also a potent chemoattractant for granulation tissue fibroblasts

Basement membrane is made up of (a) no cell product of epithelial cell (b) epidermal cell only (c) endodermal cell (d) both (b) and (c).

Description : Basement membrane is made up of (a) no cell product of epithelial cell (b) epidermal cell only (c) endodermal cell (d) both (b) and (c).

Last Answer : (a) no cell product of epithelial cell

Goblet cells of alimentary canal are modified from (a) squamous epithelial cells (b) columnar epithelial cells (c) chondrocytes (d) compound epithelial cells.

Description : Goblet cells of alimentary canal are modified from (a) squamous epithelial cells (b) columnar epithelial cells (c) chondrocytes (d) compound epithelial cells.

Last Answer : (b) columnar epithelial cells

Which one gives the most valid and recent explanation for stomatal movement? (a) Starch hydrolysis (b) Guard cell photosynthesis (c) Transpiration (d) Potassium influx and efflux

Description : Which one gives the most valid and recent explanation for stomatal movement? (a) Starch hydrolysis (b) Guard cell photosynthesis (c) Transpiration (d) Potassium influx and efflux

Last Answer : (d) Potassium influx and efflux

Which epidermal cells are also called prickle cells? -Biology

Description : Which epidermal cells are also called prickle cells? -Biology

Last Answer : Stratum spinosum, 8-10 cell layers, also known as the prickle cell layer contains irregular, polyhedral cells with cytoplasmic processes, sometimes called “spines”, that extend outward and contact neighboring cells by desmosomes. Dendritic cells can be found in this layer.

The brown-black pigment of the skin that is transferred to other epidermal cells and gives the skin its color is called A. albumin B. collagen C. keratin D. melanin

Description : The brown-black pigment of the skin that is transferred to other epidermal cells and gives the skin its color is called A. albumin B. collagen C. keratin D. melanin

Last Answer : Ans: D

Epidermal cells function -Biology

Description : Epidermal cells function -Biology

Last Answer : It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulate gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients.

Epidermal cells definition -Biology

Description : Epidermal cells definition -Biology

Last Answer : The epidermis (from the Greek ἐπιδερμίς, meaning "over-skin") is a single layer of cells that covers the leaves, flowers, roots and stems of plants. It forms a boundary between the plant and the external environment.

Epidermal cells are sloughed off from the -Biology

Description : Epidermal cells are sloughed off from the -Biology

Last Answer : The keratin-filled cells are sloughed off as dead cells. The living layer of skin located between the epidermis and the subcutaneous tissue. ... This is the deepest layer of the skin where fat is ... fatty tissue protects the deeper tissues of the body and acts as an insulation for heat and cold.

Why is it important that epidermal cells are thin? -Biology

Description : Why is it important that epidermal cells are thin? -Biology

Last Answer : The epidermal cells of root are thin walled because they are mostly involved in the uptake of water and mineral salts.

Why epidermal cells are important to a leaf? -Biology

Description : Why epidermal cells are important to a leaf? -Biology

Last Answer : Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

What is the function of dead epidermal cells? -Biology

Description : What is the function of dead epidermal cells? -Biology

Last Answer : answer:

Waterproofing protein found in the epidermal cells -Biology

Description : Waterproofing protein found in the epidermal cells -Biology

Last Answer : answer:

Grey hair is caused due to – (1) aging of epidermal cells (2) death of dermal cells (3) loss of sebum in epidermal cells (4) loss of melanin in epidermal cells

Description : Grey hair is caused due to – (1) aging of epidermal cells (2) death of dermal cells (3) loss of sebum in epidermal cells (4) loss of melanin in epidermal cells

Last Answer : (4) loss of melanin in epidermal cells Explanation: loss of melanin in epidermal cells.

Hair present in the skin are (a) epidermal in origin and made of dead cells (b) epidermal in origin and made of living cells (c) dermal in origin and made of living cells (d) dermal in origin and made of dead cells.

Description : Hair present in the skin are (a) epidermal in origin and made of dead cells (b) epidermal in origin and made of living cells (c) dermal in origin and made of living cells (d) dermal in origin and made of dead cells.

Last Answer : (a) epidermal in origin and made of dead cells

Mention any two characteristics of epidermal cells?

Description : Mention any two characteristics of epidermal cells?

Last Answer : Answer. It forms the outermost layer of the leaves. Stomata are embedded in epidermal cells.

Water molecules enter plant epidermal cells by: a) osmosis b) active transport c) translocation d) transpiration

Description : Water molecules enter plant epidermal cells by: a) osmosis b) active transport c) translocation d) transpiration

Last Answer : ANSWER: A -- OSMOSIS

Grey hair is caused due to (1) aging of epidermal cells (2) death of dermal cells (3) loss of sebum in epidermal cells (4) loss of melanin in epidermal cells

Description : Grey hair is caused due to (1) aging of epidermal cells (2) death of dermal cells (3) loss of sebum in epidermal cells (4) loss of melanin in epidermal cells

Last Answer : loss of melanin in epidermal cells

What do subsidiary cells do? -Biology

Description : What do subsidiary cells do? -Biology

Last Answer : answer:

(i) Write the specific location and the functions of the following cells in human males Leydig cells Sertoli cells Primary spermatocyte (ii) Explain the role of any two accessory glands in human male reproductive system. -Biology

Description : (i) Write the specific location and the functions of the following cells in human males Leydig cells Sertoli cells Primary spermatocyte (ii) Explain the role of any two accessory glands in human male reproductive system. -Biology

Last Answer : I)Oogenesis begins during the embryonic development stage when a million gamete mother cells (oogonia) are formed within each foetal ovary. (ii) (a) Sertoli cells are located on the inside ... provide nutrition to sperms. (b) Bulbourethral glands Their secretion helps in the lubrication of penis.

Of the following types of cells, which are believed to play a significant role in cutaneous immune system reactions? a) Langerhans’ cells Langerhans’ cells are common to the epidermis and are accessory cells of the afferent immune system process.

Description : Of the following types of cells, which are believed to play a significant role in cutaneous immune system reactions? a) Langerhans' cells Langerhans' cells are common to the epidermis and are ... and skin. d) Phagocytes Phagocytes are white blood cells that engulf and destroy foreign materials.

Last Answer : a) Langerhans’ cells Langerhans’ cells are common to the epidermis and are accessory cells of the afferent immune system process.

The cells of the epithelial lining in the vertebrate stomach are not damaged by HCl because of -

Description : The cells of the epithelial lining in the vertebrate stomach are not damaged by HCl because of -

Last Answer : The cells of the epithelial lining in the vertebrate stomach are not damaged by HCl because of - ... to dilute D. Epithelium being resistant to HCl

Germinal epithelial cells are cuboidal and these are found in

Description : Germinal epithelial cells are cuboidal and these are found in

Last Answer : Germinal epithelial cells are cuboidal and these are found in A. Testes B. Ovary C. Both D. None

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Description : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Last Answer : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles ... epithelium C. Cilated epithelium D. Cubical epithelilum

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Description : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Last Answer : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small ... Squamous B. Cuboidal C. Glandular D. Ciliated

Adjacent epithelial cells are held together by means of

Description : Adjacent epithelial cells are held together by means of

Last Answer : Adjacent epithelial cells are held together by means of A. Liposomes B. Glyoxisomes`//` glyoxysomes C. Desmosomes D. Mitcrosomes .

Epithelial tissue with thin flat cells appeating like packed tiles occurs on : -

Description : Epithelial tissue with thin flat cells appeating like packed tiles occurs on : -

Last Answer : Epithelial tissue with thin flat cells appeating like packed tiles occurs on : - A. Inner ... of fallopian tubes D. Outer surface of Intestine

The correct statement with respect to epithelial tissue is : - A - Cells are compactly packed B - cells have no intercellular matrix C - cells have li

Description : The correct statement with respect to epithelial tissue is : - A - Cells are compactly packed B - cells have no intercellular matrix C - cells have li

Last Answer : The correct statement with respect to epithelial tissue is : - A - Cells are compactly packed B - cells have no ... C C. A, C & D D. All of these

What are the features for Human Retinal Pigment Epithelial Cells?

Description : What are the features for Human Retinal Pigment Epithelial Cells?

Last Answer : Human Retinal Pigment Epithelial Cells (HRPEpiC) are isolatedfrom human retina. HRPEpiC are cryopreserved at passage one anddelivered frozen. Each vial contains >5 x 10^5 cells in 1 mlvolume. HRPEpiC are ... fibronectin.HRPEpiC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria,yeast and fungi.

What is the name of the structure that attaches epithelial cells to underlying connective tissue?

Description : What is the name of the structure that attaches epithelial cells to underlying connective tissue?

Last Answer : Feel Free to Answer

Where are apical lateral and basal surfaces of epithelial cells found?

Description : Where are apical lateral and basal surfaces of epithelial cells found?

Last Answer : Need answer

Target tissue of insulin is (A) Red blood cells (B) Renal tubular cells (C) GI tract epithelial cells (D) Liver

Description : Target tissue of insulin is (A) Red blood cells (B) Renal tubular cells (C) GI tract epithelial cells (D) Liver

Last Answer : Answer : D