Why epidermal cells are important to a leaf? -Biology

Why epidermal cells are important to a leaf? -Biology
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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.
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Related questions

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.

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.

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.

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:

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

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.

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.

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

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.

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

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

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

Last Answer : Guard cells

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

Epidermal outgrowths are known as

Description : Epidermal outgrowths are known as

Last Answer : Epidermal outgrowths are known as A. Trichomes B. Stomata C. Prickles D. Spines

What is epidermal growth factor used for?

Description : What is epidermal growth factor used for?

Last Answer : Simply put, epidermal growth factor (EGF) is a mitogenic protein, and it is used to stimulate cell growth.

Ras proto-oncogene encodes (A) Epidermal growth factor (EGF) (B) Receptor for EGF (C) Signal transducer for EGF (D) Nuclear transcription factor

Description : Ras proto-oncogene encodes (A) Epidermal growth factor (EGF) (B) Receptor for EGF (C) Signal transducer for EGF (D) Nuclear transcription factor

Last Answer : Answer : C

All the following statements about epidermal growth factor are true except (A) It is a protein (B) It possess quaternary structure (C) Its receptor is made up of a single polypeptide chain (D) Its receptor possesses tyrosine kinase domain

Description : All the following statements about epidermal growth factor are true except (A) It is a protein (B) It possess quaternary structure (C) Its receptor is made up of a single polypeptide chain (D) Its receptor possesses tyrosine kinase domain

Last Answer : Answer : B

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

Remnants of a pustule, vesicle, or bulla can be A. Epidermal Collarette B. Scale C. Plaque D. Cyst

Description : Remnants of a pustule, vesicle, or bulla can be A. Epidermal Collarette B. Scale C. Plaque D. Cyst

Last Answer : Ans: A

Excessive scaling is: A. Gross B. Seborrhea C. Dandruff D. Epidermal Collarette

Description : Excessive scaling is: A. Gross B. Seborrhea C. Dandruff D. Epidermal Collarette

Last Answer : Ans: B

An ulcer is: A. Shallow Epidermal defect B. Break in epidermis with exposure of dermis C. Not good for coffee drinkers D. A primary problem

Description : An ulcer is: A. Shallow Epidermal defect B. Break in epidermis with exposure of dermis C. Not good for coffee drinkers D. A primary problem

Last Answer : Ans: B

Where are scabies mites found? A. Hair Follicles B. Stratum Corneum C. Sub-epidermal D. Throughout the skin layers Ans: B 66 Surface irritation and inflammation caused by frictional trauma of skin on skin A. Skin Fold Dermatitis B. Furunculosis C. Alopecia D. Vesicle

Description : Where are scabies mites found? A. Hair Follicles B. Stratum Corneum C. Sub-epidermal D. Throughout the skin layers Ans: B 66 Surface irritation and inflammation ... A. Skin Fold Dermatitis B. Furunculosis C. Alopecia D. Vesicle

Last Answer : Ans: A

An epidermal growth caused by a virus (wart.) is called a A. impetigo B. melanoma C. nevus D. verruca

Description : An epidermal growth caused by a virus (wart.) is called a A. impetigo B. melanoma C. nevus D. verruca

Last Answer : Ans: D

The part of the body directly affected by Pneumonia is _____ A. Respiratory system B. Bone tissue C. Nervous system D. Epidermal tissue

Description : The part of the body directly affected by Pneumonia is _____ A. Respiratory system B. Bone tissue C. Nervous system D. Epidermal tissue

Last Answer : ANSWER: D

Mention the characteristics of epidermal tissue.

Description : Mention the characteristics of epidermal tissue.

Last Answer : a) Epidermal tissue forms the covering of most parts of plant like stem, leaves flowers, fruits, seeds and roots. c) It is living tissue. d) It is one cell thick.

What is epidermal tissue?

Description : What is epidermal tissue?

Last Answer : Epidermal tissue is a simple permanent tissue which covers all parts of plant like stem, leaves flowers, fruits, seeds and roots. It is a protective tissue.

The animal group with exoskeleton in the form of epidermal scales is

Description : The animal group with exoskeleton in the form of epidermal scales is

Last Answer : Reptiles.

Jute fibre is extracted from ? a Xylem b Parenchyma c Secondary phloem d Epidermal layer

Description : Jute fibre is extracted from ? a Xylem b Parenchyma c Secondary phloem d Epidermal layer

Last Answer : c Secondary phloem

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

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

The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca (b) fresh water animals with bony endoskeleton, air- bladder to regulate buoyancy (c) marine animals with cartilaginous endos- keleton, body covered with placoid scales (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Description : The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into ... dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Last Answer : (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca (b) fresh water animals with bony endoskeleton, air- bladder to regulate buoyancy (c) marine animals with cartilaginous endos- keleton, body covered with placoid scales (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Description : The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into ... dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Last Answer : (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Thin covering that covers seed or nut is called a. Shelling b. Funnel c. Testa d. Epidermal

Description : Thin covering that covers seed or nut is called a. Shelling b. Funnel c. Testa d. Epidermal

Last Answer : c. Testa

Name the green dot like structures in some cells observed by a student when a leaf peel was viewed under a microscope. What is this green colour due to? -Biology

Description : Name the green dot like structures in some cells observed by a student when a leaf peel was viewed under a microscope. What is this green colour due to? -Biology

Last Answer : The green dot-like structures in some cells observed by a student when a leaf peel is viewed under a microscope are chloroplasts. The green colour is due to the presence of green pigment, chlorophyll.

Bulliform cells monocot leaf. -Biology

Description : Bulliform cells monocot leaf. -Biology

Last Answer : answer:

how are chloroplast related to the function of leaf cells?

Description : how are chloroplast related to the function of leaf cells?

Last Answer : That's where the leaf uses sunlight to convert air (CO2) andwater into sugar (and O2).

$ Leaves of monocots are amphistomatic. ! Dicot leaf has dimophic cells in mesophyll.

Description : $ Leaves of monocots are amphistomatic. ! Dicot leaf has dimophic cells in mesophyll.

Last Answer : $ Leaves of monocots are amphistomatic. ! Dicot leaf has dimophic cells in mesophyll. A. If both As and R ... is wrong D. If both As and R are wrong.

Why does the middle of the leaf (the spongy region) have loosely arranged cells?

Description : Why does the middle of the leaf (the spongy region) have loosely arranged cells?

Last Answer : The spaces between the spongy mesophyll cells permit gases to move around within the leaf. That is why they are loosely arranged.

What are the Cells that control the gases entering and leaving the leaf?

Description : What are the Cells that control the gases entering and leaving the leaf?

Last Answer : Feel Free to Answer

Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells

Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells

Last Answer : Ans. ((d))

The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

Description : The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

Last Answer : Ans. ((b))

Leaves of many grasses are capable of folding and unfolding because (1) their mesophyll is not differentiated into palisade and spongy parenchyma (2) they have stomata on both sides of the leaf (3) they have high levels of silica (4) they have specialised bulliform cells

Description : Leaves of many grasses are capable of folding and unfolding because (1) their mesophyll is not differentiated into palisade and spongy parenchyma (2) they have stomata on both sides of the leaf (3) they have high levels of silica (4) they have specialised bulliform cells

Last Answer : (4) they have specialised bulli-form cells Explanation: Bulliform cells are large, bubbleshaped epidermal cells that occur in groups on the upper surface of the leaves of many grasses. These cells, by their turgor changes, cause rolling and unrolling of the leaves thus regulating water loss.

C4 plants are more efficient in photosynthesis than C3 plants due to (a) higher leaf area(b) presence of larger number of chloroplasts in the leaf cells (c) presence of thin cuticle (d) lower rate of photorespiration

Description : C4 plants are more efficient in photosynthesis than C3 plants due to (a) higher leaf area (b) presence of larger number of chloroplasts in the leaf cells (c) presence of thin cuticle (d) lower rate of photorespiration

Last Answer : d) lower rate of photorespiration.

What is true about a monocot leaf?(a) Reticulate venation (b) Absence of bulliform cells from epidermis (c) Mesophyll not differentiated into palisade and spongy tissues

Description : What is true about a monocot leaf? (a) Reticulate venation (b) Absence of bulliform cells from epidermis (c) Mesophyll not differentiated into palisade and spongy tissues

Last Answer : (c) Mesophyll not differentiated into palisade and spongy tissues

Leaves of many grasses are capable of folding and unfolding because (1) their mesophyll is not differentiated into palisade and spongy parenchyma (2) they have stomata on both sides of the leaf (3) they have high levels of silica (4) they have specialised bulliform cells

Description : Leaves of many grasses are capable of folding and unfolding because (1) their mesophyll is not differentiated into palisade and spongy parenchyma (2) they have stomata on both sides of the leaf (3) they have high levels of silica (4) they have specialised bulliform cells

Last Answer : they have specialised bulliform cells

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and apical meristem (c) Absence of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia

Description : Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and ... of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia

Last Answer : (d) Presence of vessel elements and absence of archegonia