Question

please answer following questions

1. Explain  the presence or absence of the following structures in all plant groups: spores, waxy cuticle, true stomata, vascular tissue (xylem and phloem), leaves, roots, cones, seeds, flowers/fruit.  
2. Explain flower anatomy and describe the function of the following structures: anther, pollen, filament, stamen, carpel, stigma, style, ovary, ovule, sepals, petals, receptacle.  
3. Explain a eudicot from a monocot.  
4. Explain the parts of an angiosperm leaf: nodes, internodes, petiole, blade, terminal bud.
5. Explain a compound leaf verses a simple leaf.
6. Explain a fleshy fruit verses a dry fruit.

Answer 1

Simple Leaves:

1. The lamina is not divided into separate lobes or leaflets.

2. A bud lies in its axil.

3. The base of the leaf may have stipules.

4. The simple leaves may be borne in one or more planes.

5. Simple leaves are produced on the stem in an acropetal succession.

Compound Leaves:

1. The lamina is divided into two or more leaflets which may either arise at the tip of petiole or on the sides of a rachis.

2. A bud lies in the axil of the whole leaf but the individual leaflets do not bear axillary buds.

3. The stipules may occur at the base of the whole leaf but corresponding structures are absent at the base of the leaflets (exception— Beans).

4. Leaflets of a compound leaf are always borne in one plane

Fleshy fruits:-
1) fleshy fruits are fruits that have pulp.
2)Some fleshy fruits like guava and apple have soft skin that we can eat.
3)other fleshy fruits like papaya and watermelon have hard skin that we can't eat them..
4)examples:-apple,papaya,lemons etc..

Dry fruits:-
1)Dry fruits have no pulp.
2)they usually look like a pod,shell or nut..
3)They don't split open(indehiscent)or split open(dehiscent).
4)they can have single as well as many seeds..
example:-pista,cashew,almond etc...

Monocots	Dicots
Plants that have only one cotyledon in seeds are monocots	Plants that have two cotyledons in seeds are dicots
The floral parts are in multiples of three	The floral parts are in multiples of four or five
The pollen tube is monocolpate	The Pollen tube is tricolpate
The leaves have parallel venation	The leaves have reticulate venation
Dorsiventral leaves are present	Isobilateral leaves are present
Stomata are present on both the upper and lower epidermis of leaves	Stomata are more on the lower surface of leaves