Answer:
Phloem
Explanation:
Phloem is the vascular tissue responsible for transporting organic nutrients around the plant body, carries dissolved sugars from the leaves (their site of production) or storage sites to other parts of the plant that require nutrients.
The phloem, part of a plant's vascular system, is the structure that transports organic molecules like sucrose, which is a product of photosynthesis, from the leaf to other parts of the plant. This process involves the active transport of these molecules against a concentration gradient with the aid of ATP and a carrier protein.
The structure used to transport organic molecules from the leaf to other parts of the plant is called the phloem which is part of the plant's vascular system. Products of photosynthesis, known as photosynthates, such as sucrose, are produced in the leaf's mesophyll cells. They are then translocated through this phloem to other parts of the plant where they are either used or stored. This is achieved through cytoplasmic channels called plasmodesmata which connect the mesophyll cells to phloem sieve-tube elements (STEs) in the vascular bundles. The photosynthates, including sucrose, are actively transported against its concentration gradient (which requires ATP) into the phloem cells. This is done by using the electrochemical potential of the proton gradient linked with a carrier protein referred to as the sucrose-H+ symporter.
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2. Yes, because NaCl is ionic
3. No, because NaCl is large
4. No, because NaCl is ionic
Answer: The correct answer is
No, because NaCl is Ionic
Explanation:
NaCl can pass through the cell membrane because it is Ionic and separates into Ionic components Na+ Cl+.
Cell membrane are phospholipids bilayers and have hydrophobic tails and face inside of the cells . The fatty acids tails are non polar and only non polar substances can pass through it but salts is a polar molecules because it is an ion and cannot pass.
Answer:
Earth has many layers because of its complex history and the processes that have shaped it over billions of years.
B. TCGATA
C. UCGUAU
D. TGCATA
b. False
A plant without enough water may wilt and close its stomata (leaf openings). This decreases the rate of photosynthesis because _____.
chloroplasts don't have access to the sunlightcarbon dioxide can't be absorbednutrients from the soil can't be absorbed