What are the regulation of plant life activities

Light and action transpiration Respiration Rooting Groundlessness Rooting Groundlessness of Branching.

Venus flytraps are intelligent and swift hunters that can close their leaves in a third of a second to hunt insects. Venus flytraps have several sensory hairs growing on the inside of their leaves, and the rule is that two sensory hairs will not close until they are touched within 20 seconds.

The regulation of the surplus source clock has the functions of prompting time, prompting events, maintaining status and prohibiting.

The biological clock is also known as the biological clock. It is an invisible "clock" in the organism, which is actually the internal rhythm of the life activities of the organism, which is determined by the time structure sequence in the organism. Through the study of the biological clock, new disciplines such as chronobiology, chronology and chronology have emerged.

Both plants and animals are regulated by the biological clock at all levels of life activities such as development, behavior, physiology, and metabolism.

Plants and animals that have biological clocks include: mimosas, donkey clocks, mice, timeworms, birds, etc.

1. Mimosa.

Mimosa's leaves open during the day and close at night, which is the earliest record of endogenous circadian oscillations in plants. Most living things on Earth have the ability to have upcoming events in their environment, and this ability comes from their biological clocks.

2. Donkey clock. The donkey living on a small island in the Yellow Sea of our country can accurately tell the time, it will call every hour, and the error is only 3 minutes.

3. Rats. In the fibroblasts of the ** adhesive tissue of mice, there are a large number of biological clock genes, so it is determined that there is a biological clock in the ** tissue of mammals, and it is in step with the biological clock in the brain.

4. Ticks.

In the dense forests of Africa, there is a kind of time bug that changes color every hour, so every family living there catches this little insect home and watches it change color to calculate the time.

5. Birds. Birds are particularly sensitive to light and a wide variety of chemical interventions. If the bird in the cage is listless the next day and has no energy to attract the opposite sex or raise young birds, it is caused by the disruption of the biological clock in the body.

a. Hormone regulation plays an important role in the process of plant growth and development and adaptation to the environment, but hormone regulation is only a part of the regulation of plant life activities, a correct; b. The apical advantage of plants is that the concentration of auxin in the terminal bud is low, which promotes growth, while the high concentration of auxin in the side buds inhibits growth. The geotropy of the root is a phenomenon in which the concentration of auxin on the near-ground side and the growth is inhibited, so it can reflect the duality of auxin, b is correct; c. The growth and development of plants is fundamentally the result of programmed expression of the genome in a certain time and space, and c. is correct; d. The external cause of plant phototropism is unilateral illumination, and the internal cause may be the uneven distribution of auxin, or the uneven distribution of ethylene

Plant life activities refer to the activities of water, mineral nutrition, and photosynthesis.

On the basis of metabolic activities such as respiration, it shows the growth and development processes of plant seeds, such as seed germination, branch pulling, leaf growth, flowering, and fruiting. And these life activities are interconnected, interdependent and mutually restrictive. Therefore, plant life activities can be roughly summarized into three aspects: growth and morphogenesis, material travel and energy metabolism, and stress physiology.

Growth and development processes.

Germination, old spurring branches, long leaves, flowering, fruiting.

Correlation. interconnected, interdependent and mutually restrictive.

Physiology of adversity. Plant resistance to cold, drought, salt, and disease resistance.

Tropic movements. Movement towards light, to the ground, to water, to touch.

Chinese name. Plant life activities.

Metabolic activity. Photosynthesis and respiration.

Meaning. refers to the basis of metabolic activities such as water, mineral nutrition, photosynthesis and respiration; It shows the growth and development process of plant seeds, such as seed germination, branch pulling, leaf growth, flowering, and fruiting. And these life activities are interconnected, interdependent and mutually restrictive.

Therefore, the activities of plant life can be roughly summarized into three aspects:

The growth cycle of the plant.

1. The growth of plants.

2. Plant reproduction.

3. Plant maturity and senescence.

Metabolism of matter and energy.

1. Water metabolism.

2. Mineral nutrition.

3. Photosynthesis.

4. Respiration.

Physiology of adversity. Plant resistance to cold, drought, salt, and disease resistance.

Movement of plants.

The stem of the plant always grows upwards in order to get sunlight for photosynthesis, and this movement of the stem is called "negative geotropic movement", that is, the movement in the opposite direction to the dismantling geotropic movement; The roots, in turn, always grow downwards in order to get water and fertilizer, which is called "positive ground movement".

The roots of plants also tend to be water-tropic, especially when the soil is dry and the water is unevenly distributed, and the roots tend to grow towards moist areas with water, and in moist areas, the roots are more densely distributed.

If a part of the plant can react tropically when it touches an external object, it has "tropism". For example, the tendrils of grapes, peas, and passionflowers can quickly bend and wrap around when they touch bamboo poles, ropes, or fences.

b. more accurate; Because all the life activities of plants are controlled by genes, and hormones are regulated, any kind of physiological activity of plants is regulated by hormones and various hormones

Therefore, the answer is: B hormones only regulate life activities, and any physiological activity of plants is regulated by a variety of hormones

a. Hormone regulation and knots are the way to regulate the life activities of plants, but other chemicals can also be regulated (such as growth regulators), a is wrong;

b. Auxin.

The transport is mainly polar transport, and non-polar transport can be carried out in the phloem, b error;

c. Gibberellin.

Promote seed germination, orange sinulic acid.

inhibition of seed germination, which is antagonistic in regulating plant seed germination, c error;

D. Auxin is distributed in all organs of the plant body, but it is relatively concentrated in the vigorous growth parts, and ethylene is distributed in all organs of the plant body, but it is more in the ripe fruits, D is correct

Therefore, d