What is the advantage of the presence of air spaces in the mesophyll?

Intercellular air spaces within the spongy mesophyll layer – they allow the diffusion of carbon dioxide and oxygen.

1. What is the advantage of the mesophyll being spongy?
2. Why the presence of air spaces in the spongy mesophyll assists the diffusion of carbon dioxide through the leaf?
3. What advantage is derived from having compactly arranged palisade cells near the upper epidermis?
4. What is the function of the mesophyll?
5. What is the advantage of having air spaces in leaves?
6. What will happen if you remove the air from these spaces answers?
7. How do gill filaments increase the efficiency of the gas exchange surface?
8. What is the advantage of having a palisade layer on the upper surface of a leaf?
9. What adaptations do palisade cells have?
10. What is the function of palisade cells?
11. Why presence of stomata in leaves is important?
12. Are mesophyll cells parenchyma cells?
13. Where is mesophyll tissue present?
14. Why do plants need air spaces?
15. What is air space in leaf?
16. What is leaf air space?

What is the advantage of the mesophyll being spongy?

The spongy mesophyll layer is found in the middle of the leaf. These cells have intracellular shapes producing air spaces in the leaf, which allows the carbon dioxide to diffuse through to get to the palisade cells, and oxygen to diffuse out of leaf.

Why the presence of air spaces in the spongy mesophyll assists the diffusion of carbon dioxide through the leaf?

The presence of air spaces permits the carbon dioxide concentration to increase enough for it to continue to diffuse into mesophyll cells. Oxygen production by mesophyll cells during the day means the concentration of oxygen in the cells remains higher than in the air spaces, so oxygen diffuses into these air spaces.

What advantage is derived from having compactly arranged palisade cells near the upper epidermis?

Given that they are located beneath the upper epidermis, palisade cells are well positioned to absorb light required for photosynthesis. In addition, their location ensures that carbon dioxide required for photosynthesis does not have to travel a long distance to reach the chloroplast.

What is the function of the mesophyll?

The most important role of the mesophyll cells is in photosynthesis. Mesophyll cells are large spaces within the leaf that allow carbon dioxide to move freely.

What is the advantage of having air spaces in leaves?

Adaptations to maximise gas exchange:

Intercellular air spaces within the spongy mesophyll layer – they allow the diffusion of carbon dioxide and oxygen. Stomata (small pores usually found on the lower surface of the leaf) – allow carbon dioxide and oxygen to enter and leave the leaf.

What will happen if you remove the air from these spaces answers?

If you draw the gases out from the spaces, then the leaves will sink because they become more dense than water. If this leaf disk is placed in a solution with an alternate source of carbon dioxide in the form of bicarbonate ions, then photosynthesis can occur in a sunken leaf disk.

How do gill filaments increase the efficiency of the gas exchange surface?

Gills are highly folded, giving them a large surface area and maximising the efficiency of gas exchange. The gill filaments have many protrusions called gill lamellae. One of the ways in which gas exchange is carried out efficiently is by the countercurrent flow principle.

What is the advantage of having a palisade layer on the upper surface of a leaf?

Absorbing light energy. The palisade mesophyll layer of the leaf is adapted to absorb light efficiently.

What adaptations do palisade cells have?

Absorbing light energy

The palisade mesophyll layer of the leaf is adapted to absorb light efficiently.

What is the function of palisade cells?

Their function is to prevent water getting out and stopping unwanted substances/organisms getting in. The palisade mesophyll layer is where most of the photosynthesis occurs in the leaf. The palisade cells contain a lot of chloroplasts to help them perform this photosynthesis.

Why presence of stomata in leaves is important?

Stomata are important portals for gas and water exchange in plants and have a strong influence on characteristics associated with photosynthesis and transpiration. Stomata vary in size and density among different species and among cultivated species within species.

Are mesophyll cells parenchyma cells?

The mesophyll is a parenchyma tissue. It is a true assimilation tissue. In the leaves of most ferns and phanerogams, it is organized into palisade parenchyma and spongy parenchyma. ... The palisade parenchyma is usually directly beneath the epidermis of the upper surface of the leaf.

Where is mesophyll tissue present?

Mesophyll is the internal ground tissue located between the two epidermal cell layers of the leaf; and is composed of two kinds of tissues: the palisade parenchyma, an upper layer of elongated chlorenchyma cells containing large amounts of chloroplasts; and the spongy parenchyma, a lower layer of spherical or ovoid ...

Why do plants need air spaces?

The two primary reasons plants need is air to photosynthesize (make food) and to breathe. Plants need to breathe for the same reason people and animals must breathe – they need oxygen to convert food into energy. The relationship between air and indoor plants is crucial to keeping your plants looking their best.

What is air space in leaf?

The spongy tissue that forms air spaces between the cells of leaves, stems and roots of some plants are called aerenchyma cells. It helps in the gaseous exchange between the shoot and the root and also provides buoyancy to the aquatic plants. So, the correct option is 'Aerenchyma'.

What is leaf air space?

The leaf intercellular airspace is a tortuous environment consisting of cells of different shapes, packing densities, and orientation, all of which have an effect on the travelling distance of molecules from the stomata to the mesophyll cell surfaces.