The question is incomplete. The complete question is:
Question: Why do organisms without oxygen need to convert pyruvate to lactate?
A) because pyruvate is toxic to the cells
B) in order to regenerate NAD+
C) in order to use lactate in the citric acid cycle
D) because lactate is needed to produce ATP
Answer:
B) in order to regenerate NAD+
Explanation:
Kreb's cycle and electron transport chain (ETC) are the aerobic stages of cellular respiration. ETC regenerates NAD+ and FAD+ by oxidation of NADH and FADH2 produced during glycolysis and Kreb's cycle. Here, oxygen serves as the terminal electron acceptor.
Glycolytic reactions use NAD+ as an electron acceptor and produce NADH. Therefore, a constant supply of NAD+ is required to sustain glycolysis. In absence of oxygen, ETC cannot occur and organisms convert pyruvate into lactate. Pyruvate is reduced in lactate and NADH serves as the electron donor. Thereby, lactate fermentation regenerates NAD+ to continue the process of glycolysis.
Answer:
somatic:any cell of a living organism other than the reproductive cells.
gametes:a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Explanation:
The overall goal of IPM is to reduce the environmental and health risks of pesticides within social and economic constraints.
Fix: The scope of IPM implementation will continue to change greatly in the future. What began as limited approaches to promote integration of control methods for key pests and provide guidelines for decisions regarding pesticide applications is evolving to an ecologically-based systems approach.
Answer:
The options
A. Personal mortality
B. Inevitability
C. Purposefulness
D. Organicity
The CORRECT ANSWER IS A.
A. Personal mortality
Explanation:
Universality
It as to do with the fact that all living things must gradually or at some point die. It sees Death as an all-inclusive, inevitable, and unavoidable.
A. personal mortality✔✔✔
It is the concept that death applies to oneself, that not only do all living things die but each and every living thing will surely die.
B. Inevitability❌
It is the concept that all living things must one way or the other encounter death.
C. Purposefulness❌
It has to do with death and it's purpose.
D. Organicity❌
It is the probable etiology of the inadequacy of full eyelid closure at death.
A. All are true except for A because there is a certain pattern to all polymers
