Help me with my science report please! Don't worry it's not that hard?

Question

1. What is the xylem made of and what is its function in a plant?

2. What is a phloem made of and what is its function in a plant?

3. MONOCOTS.
Characteristics=
seeds:
flowers:
leaves:
Examples:

4.Dicots
Characteristics=
-seeds:
-flowers:
-leaves:

5.GYMNOSPERM
Characteristics=
Seeds:
Flowers:
Leaves:

U GUYS THANKS SO MUCH FOR ANYONE WHO ANSWERS..
GBU!!!

Answer 1

Xylem --- xylem is one of the two types of transport tissue in plants.The most distinctive cells found in xylem are the tracheary elements: tracheids and vessel elements. However, the xylem is a complex tissue of plants, which means that it includes more than one type of cell. In fact, xylem contains other kinds of cells, such as parenchyma, in addition to those that serve to transport water.

Phloem --- In vascular plants, phloem is the living tissue that carries organic nutrients, particularly sucrose, to all parts of the plant where needed.Phloem tissue consists of less specialised and nucleate parenchyma cells, sieve-tube cells, and companion cells (in addition albuminous cells, fibers and sclereids). The sieve-tube cells lack a nucleus, have very few vacuoles, but contain other organelles such as ribosomes. The endoplasmic reticulum is concentrated at the lateral walls. Sieve-tube members are joined end to end to form a tube that conducts food materials throughout the plant. The end walls of these cells have many small pores and are called sieve plates and have enlarged plasmodesmata.
Unlike xylem (which is composed primarily of dead cells), the phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by the photosynthetic areas. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs.Organic molecules such as sugars, amino acids, certain hormones, and even messenger RNAs are transported in the phloem through sieve tube elements.

Dicots --- Seeds: the embryo of the dicot has two.
Flowers: in dicots are multiples of four or five.
Stems: in dicots they are in a ring.
Secondary growth: in dicots, stems frequently have secondary growth.
Leaves: In monocots, the major leaf veins are parallel, while in dicots they are reticulated.


MONOCOTS ---- The flower parts in monocots are multiples of three
The embryo of the monocot has one cotyledon
In monocots, the stem vascular bundles are scattered
In monocots, stems rarely show secondary growth
In monocots, the major leaf veins are parallel
The economically most important family in this group (and in the flowering plants) are the grasses, family Poaceae (Gramineae). These include all the true grains (rice, wheat, maize, etc.), the pasture grasses and the bamboos.

GYMNOSPERM ---- The leaves of many conifers are long, thin and needle-like, but others, including most of the Cupressaceae and some of the Podocarpaceae, have flat, triangular scale-like leaves.
The male cone and unfertilized female cone are called "male flower" and "female flower", respectively. After fertilization, the female cone is termed "fruit", which undergoes "ripening" (maturation).
A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food.In gymnosperms, such as conifers, the food storage tissue is part of the female gametophyte, a haploid tissue. In some species, the embryo is embedded in the endosperm or female gametophyte, which the seedling will use upon germination.

Answer 2

I just did IGCSE triple science which is pretty much the same as GCSE but we don't do any coursework just a 2 hour exam and a short coursework paper. It was stressful, but if you look at a syllabus there are only a few more things for triples to learn than the doubles, so you only do a little bit more work but you come out with 3 GCSEs instead of 2. It really depends on how academic you are on the whole. If you're good at science and you wont spend two years fretting over it and not paying as much attention to your other subjects then definitely go for it. If you're not particularly strong at the 3 sciences and might not pay your other subjects as much attention then maybe double is better. To revise for the exam I made notes from the CGP revision guides and read them over in the months before the exams. Good luck!

Answer 3

Xylem: made up of tracheids and vessel emements for water conduction. the function is to conduct water and dissolvd nutrients froom the roots to the stems & leaves.
Phloem: made up of sieve-tube members for food distribution and companion cells for moving food into and out of the sieve-tube member. the function is to conduct food materials throughout the plant and provide structural support.

Monocots have one cotyledon, parallel veins in the leaves, flowers in threes and no cambium. Dicots have two cotyledons, netlike vein pattern in the leaves, has cambium, and flowers in fours or fives.

not sure about gymnosperms, but i hope that helps.