Which statement describes the role of phloem within a plant? A) It transports food to all the parts of the plant both upwards an
d downwards. B) It transports water to all the parts of the plant only in the upward direction. C) It transports food to all the parts of the plant only in the downward direction. D) It transports water to all the parts of the plant both in the upward and downward direction.
The correct answer is option A) "It transports food to all the parts of the plant both upwards and downwards".
Explanation:
Phloem in plants is a vascular tissue that performs an analogous activity to the human circulatory system. Phloem is composed of various specialized cells that transports food to all the parts of the plant both upwards and downwards. It is differentiated from xylem in different aspects, including that xylem only allows for food transportation upwards. Other important molecules, such as proteins, are also transported within the phloem tissue.
It transports food to all the parts of the plant both upwards and downwards is the correct answer.
Explanation:
Phloem is tissue present in plants that transport the food prepare in the leaves to other parts of the plant.
Phloem has various types of specialized cells such as parenchyma cells, sieve elements, sclerenchyma, and companion cells.
Phloem transfers the food from source(leaves)to sink(to the other parts of the plant's cells), and in the spring process get reversed as the food stored in the sink move towards the developing buds through the phloem that's the reason phloem transports food to all the parts of the plant both upwards and downwards and movement of food is bidirectional.
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.
<span>She should begin by collecting data related to his respiratory system. Due to his chest issues, she needs more information on this particular system. This is a episodic database for a limited short term problem, it is different from a complete database that includes a full physical exam and a full health history.</span>
Vascular tissue is a conducting tissue, meaning multiple cell types can be found. Their functions are to transport fluids and nutrients. To do this, they need cells that connect to form tube like pipes.