Flashcards
Products
▼
Quiz
Training
Poll
Survey
Games
Store
ProProfs.com
▼
ProProfs.com
About Us
Contact Us
Follow @proprofs
Signup
Login
ProProfs Flashcards
Home
Create Flashcards
Browse
Pricing
Tour
Clients
▼
Clients
Testimonials
(855) 776-7763
EDT 8AM-4PM
Flashcards
›
My Flashcards
›
SESSION 5 - LEAVES
› Download
Download (SESSION 5 - LEAVES) Flashcards
Choose a format below:
TEXT Format (.txt)
MS-Excel Format (.xls)
Select delimiter »
Comma
Semicolon
Tab
New Line
Custom
Preview »
Side A ------ Side B Lamina - what is? ------ Is the leaf blade What is a Petiole ------ It is the stem a leaf is carried on, may extend along the centre of the leaf forming the Mid-rib Where does the leaf grow from on the stem ------ From the NODE on the stem What is the name of the angle formed by the leaf and the stem ------ LEAF AXIL Where are the axillary buds found ------ in the LEAF AXIL What are the leaf characteristics (There are 6) ------ * Leaf Structure * Attachment * Arrangement * Shape * Venation * Margin What is LEAF STRUCTURE ------ Refers to the lamina of the leaf, is it simple or compound What is leaf attachment ------ How the leaf joins the stem What is arrangement ------ The distinctive pattern of how the leaf grows on the stem - how the leaves are arranged in relation to eachother What is the leaf shape? ------ The smape of the lamina of leaf or leaflets What is the leaf Venation? ------ The pattern of the veins on a leaf What is the leaf Margin? ------ The edge of the lamina What makes a compound leaf different from a simple leaf (referring to leaf structure) ------ A compound leaf has leaflets (multiple parts) What is a compound leaf called if the leaflets grwo from the continuation of the petiole & what are the leaflets called? ------ The leaf is called a pinnate The leaflets are called pinnae Ie. Elder (sambucus nigra) What are pinnules ------ Pinnae that are divided up into further leaflets What is a palmate ------ It is where the pinnae grwo from the end of a petiole ie. trifolium pratense (red clover) Name 3 standard leaf attachments ------ Articulate - definate joint can be seen Petiolate - petiole connects the leaf to the stem Sessile - there is no petole and leaves join straight to stem - ie. grasses, clivers What is sheathing ------ It is a special leaf attachment - bases of petioles wrap around the stem eg Petrolselinum crispum (parsley) What is decurrent & perfoliate ------ Decurrent - where the lamina extends onto the side of the stem ie. Comfrey - Symphytum officinale Perfoliate - Where teh stem appears to grow through the leaf laina (sum gum trees) What are the 4 types of leaf arrangement ------ Alternate - only 1 leaf growing on each node Alternate distichous is when it appears to be growing in a spiral Opposite - 2 leaves opposite from same node Whorled - more than 2 leaves from 1 point Basal/Radical - All grwo fromthe base of the stem Taraxacum officinale - dandeloin What does penniveined mean? ------ Small veins run parallel to eachother away from the mid rib on a monocot plant What does Runcinate, Lyrate & Palmatifid refer to when describing a leaf ------ The leaf indentation Runcinate - sharp indentations, widest at the apens and tapering towards base Lyrate - as above but with blunt indentations Palmatifid - lamina deeply dissected into finger like projections - ie. maple leaf Why is the leaf surface coated in cuticle ------ To prevent excessive water loss What is stomata ------ Special openings that can open and clsoe for gas exchage preventing excessing water loss Name the 3 vestiture on the surface of leaves ------ Glabrous - smooth surface w/out hairs or other covering Glaucous - bluish waxy surface - eucalypts/mango Pubescent - covering of fine hair Stipules ------ Small leaf like structures found in pairs on the base of the petiole Ochrea? ------ Membranous sheath found around the nodes of certain plans - formed from fused stipules What is the leafs function ------ 1/ Photo synthesis 2/ Maintenace of water balance 3/ Gaseous exchange Photosynthesis - how does it work ------ The plant processes the suns energy to join carbon, hydrogen and oxygen into sugar molecules What makes a plant green & why is it needed ------ Chlorophyll - needed to absorb the light energy What is the difference between Autotrophs & hereotrophs ------ Autotrophs - Can make their own food - most plants are autotrophs What is an example of a bract ------ Asteracea family - long thin bracts around flower head What are leaf modifications ------ Tendrils - wrap around structures Spines - protection for plant Bracts - Grow at base of flower stalks
Side A ------ Side B Lamina - what is? ------ Is the leaf blade What is a Petiole ------ It is the stem a leaf is carried on, may extend along the centre of the leaf forming the Mid-rib Where does the leaf grow from on the stem ------ From the NODE on the stem What is the name of the angle formed by the leaf and the stem ------ LEAF AXIL Where are the axillary buds found ------ in the LEAF AXIL What are the leaf characteristics (There are 6) ------ * Leaf Structure * Attachment * Arrangement * Shape * Venation * Margin What is LEAF STRUCTURE ------ Refers to the lamina of the leaf, is it simple or compound What is leaf attachment ------ How the leaf joins the stem What is arrangement ------ The distinctive pattern of how the leaf grows on the stem - how the leaves are arranged in relation to eachother What is the leaf shape? ------ The smape of the lamina of leaf or leaflets What is the leaf Venation? ------ The pattern of the veins on a leaf What is the leaf Margin? ------ The edge of the lamina What makes a compound leaf different from a simple leaf (referring to leaf structure) ------ A compound leaf has leaflets (multiple parts) What is a compound leaf called if the leaflets grwo from the continuation of the petiole & what are the leaflets called? ------ The leaf is called a pinnate The leaflets are called pinnae Ie. Elder (sambucus nigra) What are pinnules ------ Pinnae that are divided up into further leaflets What is a palmate ------ It is where the pinnae grwo from the end of a petiole ie. trifolium pratense (red clover) Name 3 standard leaf attachments ------ Articulate - definate joint can be seen Petiolate - petiole connects the leaf to the stem Sessile - there is no petole and leaves join straight to stem - ie. grasses, clivers What is sheathing ------ It is a special leaf attachment - bases of petioles wrap around the stem eg Petrolselinum crispum (parsley) What is decurrent & perfoliate ------ Decurrent - where the lamina extends onto the side of the stem ie. Comfrey - Symphytum officinale Perfoliate - Where teh stem appears to grow through the leaf laina (sum gum trees) What are the 4 types of leaf arrangement ------ Alternate - only 1 leaf growing on each node Alternate distichous is when it appears to be growing in a spiral Opposite - 2 leaves opposite from same node Whorled - more than 2 leaves from 1 point Basal/Radical - All grwo fromthe base of the stem Taraxacum officinale - dandeloin What does penniveined mean? ------ Small veins run parallel to eachother away from the mid rib on a monocot plant What does Runcinate, Lyrate & Palmatifid refer to when describing a leaf ------ The leaf indentation Runcinate - sharp indentations, widest at the apens and tapering towards base Lyrate - as above but with blunt indentations Palmatifid - lamina deeply dissected into finger like projections - ie. maple leaf Why is the leaf surface coated in cuticle ------ To prevent excessive water loss What is stomata ------ Special openings that can open and clsoe for gas exchage preventing excessing water loss Name the 3 vestiture on the surface of leaves ------ Glabrous - smooth surface w/out hairs or other covering Glaucous - bluish waxy surface - eucalypts/mango Pubescent - covering of fine hair Stipules ------ Small leaf like structures found in pairs on the base of the petiole Ochrea? ------ Membranous sheath found around the nodes of certain plans - formed from fused stipules What is the leafs function ------ 1/ Photo synthesis 2/ Maintenace of water balance 3/ Gaseous exchange Photosynthesis - how does it work ------ The plant processes the suns energy to join carbon, hydrogen and oxygen into sugar molecules What makes a plant green & why is it needed ------ Chlorophyll - needed to absorb the light energy What is the difference between Autotrophs & hereotrophs ------ Autotrophs - Can make their own food - most plants are autotrophs What is an example of a bract ------ Asteracea family - long thin bracts around flower head What are leaf modifications ------ Tendrils - wrap around structures Spines - protection for plant Bracts - Grow at base of flower stalks
Everything is ready!
Let’s click on download button to download score report in Microsoft Excel format (.xls file).