Flower

Slide 1 : APT ACADEMIC SOLUTIONS believes in people who will deliver the right solutions, and it proudly possesses them.

Dr. Pankaj KumarDirector – Apt Academic Solutions : Dr. Pankaj KumarDirector – Apt Academic Solutions Your Mentor

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Slide 4 : FLOWER Pollination

Slide 5 : Flower Petals – Corolla Sepal – Calyx Anther – Androecium Carpel – Gynoecium Tepel - ??????

Flower is a modified shoot : Flower is a modified shoot Floral axis like shoot bears internodes: Anthophore – internode between calyx & corolla Androphore – internode between corolla & androecium Gyanophore – internode between androecium & gynoecium Floral axis like shoot bears leaves in the form of sepals, petals, carpels, etc Gyanandrophore - ???? Home work

Slide 7 : Flower Parts of a typical flower 1. Calyx: Outermost whorl 2. Corolla: Second whorl Androecium: Third whorl a.anther b.connective c.filament Gynoecium (Pistil): Fourth and last whorl Ovary Stigma Style

Slide 8 : Flower Petals – Corolla Sepal – Calyx Anther – Androecium Carpel – Gynoecium Tepel - ??????

Slide 9 : Description of flower

Slide 10 : Description of flower Floral symmetry: Three conditions – Actinomorphic Zygomorphic Asymmetric

Slide 11 : Description of flower Floral symmetry: Three conditions – Actinomorphic Zygomorphic Asymmetric

Slide 12 : Description of flower Floral symmetry: Three conditions – Actinomorphic Zygomorphic Asymmetric

Slide 13 : Description of flower Position of floral parts on thalamus with respect to ovary Hypogynous Perigynous Epigynous

Slide 14 : Description of flower Position of floral parts on thalamus with respect to ovary Hypogynous Perigynous Epigynous

Slide 15 : Description of flower Position of floral parts on thalamus with respect to ovary Hypogynous Perigynous Epigynous

Slide 16 : Description of flower Aestivation – mutual arrangement of sepal or petal

Slide 17 : Description of flower Aestivation – mutual arrangement of sepal or petal

Slide 18 : Description of flower Aestivation – mutual arrangement of sepal or petal

Slide 19 : Description of flower Aestivation – mutual arrangement of sepal or petal

Slide 20 : Description of flower Types of stamens on the basis of length Didynamous: Ocimum Tetradynamous: Members of family Brassicaceae Extrose : Stamens are ouside the flower; China rose Introse : Stamens are inside the flower; Dianthus

Slide 21 : Description of flower

Slide 22 : Description of flower

Slide 23 : Description of flower

Slide 24 : Description of flower

Slide 25 : Description of flower Style Terminal: Hibiscus Lateral: Potentilla Gynobasic: Ocimum Stylopodium: Coriandrum

Cohesions between Stamens : Cohesions between Stamens Adelphous Filament united but anther free Polyadelphous stamens occurs in Citrus

Cohesions between Stamens : Cohesions between Stamens Syngenesious Filament free but anther united Typical feature of Sunflower family

Cohesions between Stamens : Cohesions between Stamens Syndrous Both filament & anther united Typical feature of Cucurbitaceae family What is Gynandrous ?

Slide 29 : Description of flower Placentation – arrangement of placental tissue inside the ovary wall

Slide 30 : Description of flower Placentation – arrangement of placental tissue inside the ovary wall

Slide 31 : Description of flower Placentation – arrangement of placental tissue inside the ovary wall

Slide 32 : Description of flower Placentation – arrangement of placental tissue inside the ovary wall

Slide 33 : Description of flower Placentation – arrangement of placental tissue inside the ovary wall

TEST : TEST 15 Questions Each question carries 3 marks -1 mark for incorrect response Question will be displayed once for 30 seconds

Class Exercise - 1 : Class Exercise - 1 Anther united filament free occurs in adelphous syngenesious synandrous gynandrous

Class Exercise - 2 : Class Exercise - 2 Which of the following placentation has uinilocular ovary Marginal & Axile (b) Axile & free central (c) Free central & Basal (d) Basal & Axile

Class Exercise - 3 : Class Exercise - 3 Versatile anther is atypical feature of family Ranunculaceae (b) Poaceae (c) Malvaceae (d) Cucubitaceae

Class Exercise - 4 : Class Exercise - 4 Which of the following is the most advanced placentation ? marginal (b) axile (c) Free central (d) basal

Class Exercise - 5 : Class Exercise - 5 Monoadelphous stamen is a typical feature of family Ranunculaceae (b) Poaceae (c) Malvaceae (d) Cucubitaceae

Class Exercise - 6 : Class Exercise - 6 Tetradynamous stamens occur in family Cruciferae (b) Poaceae (c) Malvaceae (d) Cucubitaceae

Class Exercise - 7 : Class Exercise - 7 Which of the following is true for didynamous stamens 4 longer stamens are placed inside and 2 shorter are at outside 2 longer stamens are placed outside and 2 shorter are at inside 2 longer stamens are placed inside and 2 shorter are at outside 4 longer stamens are placed inside and 4 shorter are at outside

Class Exercise - 8 : Class Exercise - 8 Which of the following is the most primitive placentation ? marginal (b) axile (c) Free central (d) basal

Class Exercise - 9 : Class Exercise - 9 Which of the following is true ? Reticulate venation in dicots & parallel venation in monocots (b) Reticulate venation in monocots & parallel venation in dicots (c) Reticulate venation in both dicots & monocots (d) Parallel venation in both dicots & monocots

Class Exercise - 10 : Class Exercise - 10 Free carpel or apocarpous condition occurs in Ranunculaceae (b) Poaceae (c) Malvaceae (d) Cucubitaceae

Class Exercise - 11 : Class Exercise - 11 Trimerous flowers occurs in dicots monocots (c) Both a & b (d) Either a & b

Class Exercise - 12 : Class Exercise - 12 Flower is a modified shoot because it bears nodes floral leaf (c) internodes (d) All of the above

Class Exercise - 13 : Class Exercise - 13 In which type of placentation, the ovules are borne on a central axis as an upgrowth from ovary? Basal Axile Free-central All of these

Class Exercise - 14 : Class Exercise - 14 Leafy growth in Bryophyllum occurs from (a) petiole (b) Leaf base (c) Leaf lamina (d) Leaf margin

Class Exercise - 14 : Class Exercise - 14 Gyanobasic style occurs in family (a) Labiateae (b) Cruciferae (c) Malvaceae (d) Compositeae

Class Exercise - 15 : Class Exercise - 15 Ovary is inferior in Hypogynous flower (b) Perigynous flower (c) Epigynous flower (d) All of the above

ANSWER : ANSWER

Next Class : Next Class Plant Morphology Join me after reading the topics from CBSE book

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