Answer:
Diet is an important risk factor in coronary heart disease. Food-related risk factors include obesity, high blood pressure, uncontrolled diabetes and a diet high in saturated fats. A low-saturated fat, high-fibre, high plant food diet can substantially reduce the risk of developing heart disease.
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Answer:
Asexual portion, sexual portion and mosquito.
Explanation:
Plasmodium species is known to cause malaria in humans. The anopheles is the primary host for the plasmodium and humans acts as the secondary host for the plasmodium.
The secondary host is important for the asexual reproduction that occurs in the humans and causes clinical symptoms. The sexual reproduction occurs with the help of spores that occurs in the human blood. The disease can pass from one human to the other human by the mosquito biting.
Thus, the answer is asexual portion, sexual portion and mosquito.
- Xylem contains tracheids, vessels, xylem parenchyma and xylem fibre.
- Tracheids: They are elongated, tubular dead cells with tapering end walls.
- Vessels: These are also known as trachea. They are elongated, tubular dead cells. They are joined to each other by end to end forming a continuous pipe. The cells are thick and lignified.
- Xylem parenchyma: They are also called wood parenchyma. This is the only living tissue of xylem.
- Xylem fibre: They are dead cells with thick walled fibre.
- Phloem consists of sieve tubes, companion cells, phloem parenchyma and phloem fibres.
- Sieve tubes: These are elongated, tubular living cells arranged in a row, with their perforated end walls forming a sieve. They are non-nucleated. Their protoplasm are inter-connected through sieve plates. They possess vacuoles.
- Companion cell: They are elongated, lens-shaped cells containing dense cytoplasm and prominent nuclei. These cells maintain connection with sieve cells through pits.
- Phloem parenchyma: They are living thin walled parenchyma cells.
- Phloem fibre: They are also known as bast fibre. They are elongated fibre like sclerenchymatous dead cells with thick walls containing pits and interlocked ends. Phloem fibre are the only dead cells in phloem.
Hope you could get an idea from here.
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Answer:
b. Chemiosmosis
Explanation:
Chemiosmosis refers to the process during which phosphorylation of ADP into ATP is driven by the energy of an electrochemical gradient. This electrochemical gradient was generated during the transfer of electrons down an electron transport chain. The components of the electron transport chain pump the protons across the membrane to produce a proton concentration gradient. During chemiosmosis, protons diffuse through the transmembrane channels of ATP synthase and ATP is synthesized. There is no reduction of NAD+ or oxidation of NADH during chemiosmosis.
