Autotrophs are the producers, i.e. plants (they make their own food) so they gain their energy by converting light energy into chemical energy through the process of photosynthesis. Whereas heterotrophs (animals) cannot make their own food so they obtain nutrition through the consumption of autotrophs and other heterotrophs.
Answer:
Prokaryotes (single celled organisms)
Explanation:
Prokaryotes are single celled organisms or unicellular that lack membrane bound organelles such as the nucleus. Instead their DNA us found in a coiled loop floating freely in the cytoplasm in a region called the nucleoid. Examples that include prokaryotes are Bacteria and Archaea.
They have been estimated to exist on Earth about 3.5 billon years ago where life first started.
First one is d. second one is c. third one is d. FORTH is b.
5th one is a.
Answer:
The technique is known as "staining"
Explanation:
Staining is a technique used to enhance the color contrast of the microscopic samples when observed in the microscope especially in the microbiological samples.
In the given question, when the staining technique is used to identify the sample then staining procedure is followed in a process where the samples can be identified on the basis of the color contrast which is in the case of gram staining.
The gram staining is used to identify the bacteria on the basis of color as the bacteria which appear blue in color are called gram-positive and the bacteria which appear red in color are gram-negative bacteria.
Thus, staining is the correct answer.
Answer:
A. When binding to isocitrate dehydrogenase, ADP decreases the Km for isocitrate.
Explanation:
when ADP decreases the Km, it causes isocitrate dehydrogenase to have higher affinity for its substrate and as such can attain Vmax (The rate of reaction when the enzyme is saturated with substrate is the maximum rate of reaction) easily and faster, that is activation.