Answer;
Xylem;
if you cut a stalk of celery and put it in a glass of water containing red food coloring overnight, the next morning the celery will be red. This has occurred because the xylem has conducted the colored water up through the stalks.
Explanation;
-Xylem is a vascular tissue that transports water and minerals from the roots to other plant parts; consists of long, narrow cells called tracheids and wide, barrel-shaped cells called vessel elements; tracheid-conducts water and minerals through pits; vessel element- conducts water and minerals through pits and perforated end walls.
6. D
5. A
4. A
3. B
2. B
1. I can’t answer this sorry
Answer:
b. enables cell to recognize and respond to external environment
Explanation:
There are two types of receptor present in/on the cell. The receptors that are present on the cell surface are called the cell surface receptor and the receptor which is present inside the cell is called an intracellular receptor.
The cell surface receptor is responsible for enabling the cell to recognize and respond to the external environment. The signal molecules that bind to the cell surface receptors are mostly hydrophilic and they generate an intracellular cascade in the cell which brings specific changes in the cell. So the right answer is b.
I believe it is c RNA, because DNA is a storhouse for bio info.....not sure what ATP is hope this helps!