Under high-power lens, onion root tip appear as large, rectangular interlocking cells. It is clearly visible that cells are surrounded by distinct cell walls. Each cell has a dark stained nucleus. Large vacuoles are also observed in the cells. Small starch granules are also present inside the cells within the cytoplasm. Since root cells do not take part in photosynthesis, no chloroplasts are observed.
Answer:
sigma subunit
Explanation:
Sigma subunit of RNA polymerase holoenzyme directs the enzyme towards the consensus sequences present upstream of the transcription start site. Completion of the initiation phase of transcription is followed by dissociation of sigma subunit from the transcription complex.
The protein NusA replaces the sigma subunit. The RNA polymerase leaves the promoter and starts the elongation
.
The answer is false I hope this helps
Active transport.
Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.
Hope this helps!
Cells<span> make up the smallest level of a </span>living<span> organism such as yourself and other</span>living<span> things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the </span>cell is called<span> the</span>fundamental/basic unit of life<span>.</span>
