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Zolol [24]
2 years ago
5

E. coli grown in the presence of lactose, but absence of glucose, will use the enzyme beta-galactosidase to digest lactose. How

are these cells different from cells which are grown in the absence of lactose and presence of glucose
Biology
1 answer:
Triss [41]2 years ago
7 0

Answer: Lac operon

Explanation: the same cells when grown in glucose media utilize the glucose as source if energy by blocking the activity of the enzyme beta- galactosidase. the operator site of the operon is blocked thereby preventing the activity of the collective functional genes.

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6. Ribosomes contain a mixture of ribosomal RNA (rRNA) and ribosomal proteins. In most cases, any particular rRNA or ribosomal p
MArishka [77]

Answer:

This phenomenon occurs because the expression is higher for genes encoding ribosomal proteins in order to balance the number of ribosomal proteins that are present in the cell with the ribosomal RNA level

6 0
3 years ago
True or False. The arrow labeled A represents a transfer of solar energy to chemical energy.
DanielleElmas [232]

Answer:

true

Explanation:

photosynthesis is literally the transfer of solar energy into chemical energy so that plants can survive.

5 0
3 years ago
Describe the role of the carrier molecule nadp in photosynthesis
Eduardwww [97]

Answer:

The high energy electrons from chlorophyll to other molecules are transferred by this molecule.

Explanation:

NADP is an important molecule which is used in the production of energy in the form of ATP. During the process of photosynthesis it acts as a universal electron carrier. It accepts electrons and hydrogen atoms to form NADPH. NADPH then moves to the other location of reactions and there it donates the energy stored in bonds along with hydrogen and electrons to other molecules and again becomes NADP.

7 0
2 years ago
How should we allocate resources so that the whole human population can have enough resources to live
oee [108]

Answer:

RAtion foods. More systainable living

Explanation:

7 0
3 years ago
Loss of biodiversity matters not only with regard to mammals or other vertebrates, but also microbes. What statement below would
Romashka [77]

Answer:

B. Microbes may produce unique proteins useful in genetic research

Explanation:

Biodiversity refers to the diversity of living beings present on Earth. The biodiversity is a very important component of the ecosystem as these living organisms are interlinked with each other. Therefore, the loss of biodiversity will affect the ecosystem.

When we look at the biodiversity a layman considers the living organisms which can be seen with eyes but the diversity also exists at the level of the micro-organisms.

The man-made activities are not only harming the macroscopic but also microscopic organisms. The microbes play an important role in our life like these days they are used by the scientific community to study the genetic and related fields like molecular biology. The microbes produce proteins that are consumed by humans.

Thus, Option-B is correct.

8 0
3 years ago
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