Presumably you are talking about epigeal development, where the cotyledons grow out from the seed. At first they absorb water, and food from the adjacent parts of the seed, then when they are above ground, many of them photosynthesise.
first leaves that come out of the seed
The first leaves that grow out of a seed are called the seed leaves(very origanal)
The seed leaves have carried out the function they are there for and are of no further use.
dicotyledon
The seed leaves provide the seedling with food to grow before the appearance of leaves that enable the plant to make its own food.
I think that it increases because the plant needs to make food and the leaves are in charge of that. So yup!
The mass of a seed leaf changes depending on the water and internal processes. When some seed leaves lose water due to transportation, they lose mass. Other will start to sprout and produce their own food, which cause them to gain mass.
first leaves that come out of the seed
The first leaves that grow out of a seed are called the seed leaves(very origanal)
Dicots have 2 seed leaves.
seed leaves provide food for the seedling
Dicot! a dicotyledon
first leaves that come out of the seed
A dicotyledon has leaves with a network of veins, and also, the seed contains an embryo that contains two seed leaves
No, Monocot seedlings typically have one seed-leaf, in contrast to the Dicotos which typically have two seed-leaves.
Seed leaves
Depends. - Do you know what kind of plant the seed is from? Look it up. - Can you wait until the seed germinates? Count the initial number of leaves it has as soon as it germinates and before it begins to grow new leaves. - Can you simply dissect the seed? Count how many leaves are on the embryonic plant inside. - Is this a plant that has already germinated and you want to identify (and count) which of its leaves are seed leaves? That's more difficult. Some plants discard their seed leaves within weeks after germination. Some keep them below the soil and only raise their true leaves above the soil. In some plants, the seed leaves are of a markedly different form that the true leaves, but in some (especially pine and related softwood trees) the seed leaves look almost identical to the true leaves.