Yes,
larger the leaf size, higher is the rate of photosynthesis
. … Larger leaf size has a broader surface area with more chloroplasts, absorbs more light from the sun and more number of stomata present on the surface of the leaves, which play a crucial role in gaseous exchange during the process of photosynthesis.
Do bigger leaves do more photosynthesis?
Large leaves contain broad surface area and numerous number of stomata.
Presence of
numerous stomata helps to enhance the gaseous exchange (CO2 in & O2 out) thus increasing the rate of photosynthesis.
Does leaf size matter in photosynthesis?
Previous studies have confirmed that
the variation in leaf size can substantially modify the whole-leaf integrated photosynthetic activity
, namely overall higher mass-based photosynthetic activity of smaller leaves (Poorter and Evans, 1998; Niinemets et al., 2006, 2007).
Why is leaf size important?
Being
larger in width and length
, the major veins transport water more efficiently through the leaf and can be thought of as “superhighways” for water transport. … blocking of the major veins had a big impact on water flow through the leaf but that this could be rescued by addition of more major veins.
Does leaf shape affect photosynthesis?
The shape of a tree's leaves are a response to the tree species' long term ecological and evolutionary histories. … The leaf, then, is affected by these balancing acts:
enough sunlight and carbon dioxide to run photosynthesis
, but not too much associated heat absorption or water loss.
Which leaf carries out more photosynthesis and why?
The palisade mesophyll layer
is made up of closely-packed, elongated cells located just below the upper epidermis. They contain chloroplasts and carry out most of the photosynthesis.
Why do sun leaves have thick cuticles?
Sun leaves become thicker than shade leaves because they have
a thicker cuticle and longer palisade cells
, and sometimes several layers of palisade cells. The larger shade leaves provide a larger area for absorbing light energy for photosynthesis in a place where light levels are low.
Does the number of leaves affect plant growth?
The number of leaves on a plant is
fixed mainly by the genetics of the plant
which controls the arrangement of leaves on the stem. … Plants are constantly balancing the amount of growth they put into shoots as against roots. One feature that affects this is whether the plant is growing near other green plants.
What affects leaf size?
Temperature, rainfall and solar radiation
are the key drivers of leaf size around the world; this explains both the giant leaves of tropical plants and the tiny ones of desert dwellers.
In which kind of leaf rate of photosynthesis will be highest?
The leaf photosynthesis rates were found to be highest
under midday temperatures of 35 °C
, but declined with higher or lower midday growth temperatures, under both low (350 μmol mol
− 1
) and high (660 μmol mol
− 1
) levels of [CO
2
] (Vu et al., 1997).
What shape is the leaf?
Leaf shape can vary considerably. The most common shapes include
oval, truncate, elliptical, lancolate, and linear
. Leaf tips and bases may also be unique, with names based on their shapes. Leaf arrangement is mainly limited to two basic petiole attachments: simple and compound.
Which leaf design loses water the fastest?
Which leaf design loses water the fastest and must live in wetter environments than the rest? The
jojoba leaf
does much better than the pine leaf in very dry environments. What features of the jojoba plant help their leaves lose less water than the pine leaves? 1.
What is the biggest leaf in the world?
The plant with the largest leaves in the world is
Raphia regalis
, a species of Raffia Palm belonging to the palm tree family Arecaceae. Raphia regalis is native to Angola, the Republic of the Congo, Gabon, Cameroon, and Nigeria.
Which leaf carries out more photosynthesis big or small?
More
chloroplasts
means more photosynthetic capability. Certain types of plants (dicots and some net-veined monocots) have two different types of mesophyll tissue. Palisade mesophyll cells are densely packed together, whereas spongy mesophyll cells are arranged more loosely to allow gases to pass through them.
Do larger leaves have more stomata?
found that
stomatal density was inversely related to leaf size
, due to a higher cell insertion (number of cells per unit area) in smaller leaves. However, at a cellular level the stomatal index remains constant.
How does leaf position affect photosynthesis?
Photosynthesis and transpiration per unit of leaf area were
unaffected
by leaf position and, in all leaves, peak photosynthesis of about 110 ng CO, cm-2 s-‘ was attained 13-15 days after leaf unfolding, when the leaf was 75-90% of maximum area.
