All categories

3 years ago

Which of the following is NOT functionally important in cells of the gametophytes of both angiosperms and gymnosperms?

Biology

1 answer:

Ksju [112]3 years ago

8 0

Answer:

The correct answer will be option- B.

Explanation:

The gametophyte is the phase of the life cycle of the plant which produces the gametes of the plants.

The chloroplast is the organelle associated with the production of the food in the form of glucose using sunlight and carbon dioxide. The gametophyte is the reduced phase of the angiosperms and gymnosperms which lacks chloroplasts as the gametophyte of these groups directly depends on the sporophyte of the plants.

Thus, Option-B is the correct answer.

You might be interested in

Describe how the structures of proteins differ from the structures of carbohydrates

Masteriza [31]

Answer:

Both are considered macromolecules. I'll explain below

Explanation:

Proteins are like a huge Lego construction. Each individual piece gets pieced together to make a larger "thing" - Death Star, House, etc. Each individual piece is a monomer, and the larger construction is the polymer. The monomers are Amino Acids and they get pieced together to form the polymer that is called a protein. The linkage that they use is an amide bond, and in biology it is usually called a peptide bond.

Carbohydrates can be singular monomers or polymer units. They are made of completely different compounds - usually aldehydes or ketones. And they link together through different chemical linkages (acetal or ketal linkages for polymers,hemiacetal or hemiketal linkages for monomers).

Both can be large, 3D strucutres - proteins are only functional as a large, 3D structure, while carbohydrates can be singular.

5 0

2 years ago

Explain the purpose of cell division in living organisms.

Kruka [31]

It is to grow, create, and repair the living organism

8 0

3 years ago

In dicots, secondary growth

vivado [14]

Answer:

yes

Explanation:

3 0

3 years ago

Suppose you cut open a leaf in cross section and observed stomata

fomenos

It’s monocot because dicots are found in the lower epidermis only

4 0

3 years ago

If the efficiency of a gasoline engine is 25%, what happens to the missing 75% of the energy in the fuel?

hram777 [196]

The 75% energy which does not do any useful work gets dissipated as thermal energy in gasoline engines.

Explanation:

The efficiency of any engine like gasoline engine is the ratio of work done in contrast to heat or energy provided.

Gasoline engines are internal combustion engine. The thermal efficiency is calculated of these engines.

work done or efficiency= $\frac{work done}{heat absorbed}$

or heat absorbed is divided by heat used in doing work

the friction and in other forms heat gets lost.

In gasoline engine about 65 to 75 % heat gets emitted without any useful work done. The heat gets lost in friction, air turbulence, noise and work input to turn on the engine. After the dissipation of heat in it only 25% is used up by vehicle having gasoline engines.

5 0

3 years ago