Different structures and functions of roots
Explanation:
Roots are the underground descending non-green part of the plant.
Root functions: Anchorages the plant to the soil, absorbs water and nutrients from the soil.
Characteristics: Positively geotropic and hydrotropic, negatively phototropic; does not have nodes, internodes or stems.
Types:
- Tap root
- Adventitious root – fibrous, foliar and true adventitious roots
Structure and functions:
- Root cap or Calyptra: Cap-like structure covering the root tip
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- Function: protects the meristematic tissues of the root, secretes mucilage which enhances the root tips to grow into the hard soil.
- Meristematic zone or growing point sub-terminal behind root cap. These cells are inverted and looks like a dome.
- Function – helps in the root growth by adding new cells to the root tip and other basal regions
- Zone of elongation behind the meristematic zone.
- Function – helps in elongation of the root
- Root hair zone: This is the zone of differentiation where cells differentiate into vascular tissues like phloem, xylem, endodermis, cortex etc.
- The main function of root hair is to increase the total surface area of root to facilitate more absorption of water and other nutrients from the soil
- Zone of maturation: the major and mature portion of a root.
- Function - lateral roots originates from this zone and radial differentiation leads to secondary growth.
The correct processes and components of the carbon cycle is given in the image attached .
The first step in sequencing of DNA into a protein is called transcription. Transcription refers to transcribing a strand of DNA to a single strand of messenger rNA or mRNA. The mRNA is then modified (removal of introns, splicing of exons, adding the 5' cap and the poly-A tail, etc) then transported to the nucleus. The second step is called translation. Translation is refers to translating the mRNA strand into its corresponding amino acid based on codon sequences.
The answer gotta be C & d . Most likeyly
Answer: Option A) emulsification of lipids
Explanation:
Since the gall bladder has the sole responsibility storing bile produced by the liver, which is necessary for the digestion and absorption of lipids in the duodenum, its absence would hinder lipids breakdown, and might results in health risks
