What do u know about plant digestive system list the answers

Once an organism — a plant or animal — ingests (or absorbs) food, the organism’s digestive system immediately starts breaking down the food to release the nutrients. The smallest digestive system can be found in organisms made up of several cells. However, the system, in which specialized cells surround a digestive cavity, gets the job done. The cells acquire nutrients that the other cells in the organism can use for processes that keep the organism alive. As organisms increase in complexity, they expend more energy and require more nutrients. In keeping with their more complex metabolism, their digestive systems are more complex. The process of getting nutrients into the organism happens at the cellular level; that is, the cells lining the digestive tract take in the nutrients and pass them on to the rest of the body.

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.