Question: 1metabolic pathways developed by the cells enabled several things which...
1-Metabolic pathways developed by the cells enabled several things. Which of the following is not one of them?
A) Synthesize the compounds it requires from smaller molecule precursors
B) Utilize catalysts for its reactions to accelerate them
C) Produce or utilize energy needed for the cellular activities
D) Make its own oxygen
2. Cells carry out different metabolic reactions, in different compartments (= different enclosed organelles of the cell). Which of the following are the reasons for this?
A) Protect the metabolism from unwanted environmental factors
B) Enclosure enables maintaining high concentrations of the components without letting them diffuse away
C) More concentrated substances can react more readily, with increased efficiency
D) All of the above
E) Only a and b
3.Which of the following developed during the evolution of eukaryotic cells from prokaryotic cells?
B) the cell membrane
C) nuclear membranes to form nucleus
4. Which three cellular components are present in both prokaryotes and eukaryotes?
A) ribosomes, chloroplasts, mitochondria
B) nucleus, ribosomes, RNA
C) RNA, DNA, ribosomes
D) endoplasmic reticulum, DNA, RNA
E) mitochondria, DNA, RNA
A) the science of biological classification based on morphological features of organisms
B) the science of biological classification based on the evolutionary relationships between organisms.
C) the science of biological classification based on reproductive strategies.
D) the branch of science that studies phyllopods.
E) none of the above
6.Which of the following is False regarding mutations?
A) They are small changes in an individual’s genetic material
B) All mutations are bad and cause diseases
C) Mutations that increases the chances of an individual organism increases the possibility that this mutation is passed on to next generations
D) Mutations that are deleterious (damaging to the organism) tend to end with the organism’s death
7.Which of the following is NOT true about evolution theory?
A) It proceeds through random changes, that affect the ability of the organism to reproduce and survive under existing environmental circumstances
B) Variations in individual organisms is better for survival and adaptation to changes, than being homogenous
C) All the changes in an organism are new, they were not dependent on preexisting features
D) Organisms continue to evolve; evolution has not stopped
10.In thermodynamics, the reaction (or organism or the material we are studying) of interest is called: