The answer is
B. Denaturing proteins
C. Altering quaternary structures
D. Destroying cell membranes
Protein have a complex structure from primary to quaternary structure. Change in pH or temperature will cause denaturation of protein which make it unfolded and change the secondary, tertiary, or quaternary structure and cause the enzyme of bacteria become useless. It could also damage the protein in membrane and destroy them, causing lysis. It should not affect the sugar though
Answer:
The correct option is b
Explanation:
Phospholipids are lipids that contains a phosphate group, which forms the "head" of the molecule and is hydrophilic (water loving). The "tail" of phospholipids is made of two fatty acids which are hydrophobic (water fearing). The phospholipid in the cell membrane acts as a selectively permeable barrier that regulates what goes in and out of the cell <u>thereby protecting the cell from some external molecules and ions</u>.
Bacteria and Fungi are the two primary decomposers
Explanation:
<u>Bacteria: </u>Bacteria are known as microscopic single celled organism. Their existence is between inside as well as outside the organism. The use of bacteria is in medical and industrial processes. They are first organisms in earth. Bacteria can survive in worst condition. There are huge number of bacteria. So, it is classified according to their structure and shape.
The life cycle of bacteria can be divided into log phase, lag phase, the stationary phase and Death phase. In lag phase bacteria don’t grow they produce amino acid and protein and make copies of DNA. They make themselves ready for division. In log phase bacteria rapidly multiply itself through binary fusion. In the stationary phase the growth of bacteria is dwindles because of lack of space and accumulating waste. The last phase is death phase where bacteria loss its ability of reproduction.
<u>Fungi:</u> Fungi is same like bacteria play vital role in ecosystem. They are also decomposer. The first way of fungi life cycle is based on spore phase. They begin with haploid. They have one copy of all their genetic material. The second stage is mycelium stage where fungi reproduce asexually.
When a stimulus is produced it signifies the production of sensation in the sensory organs. This sensation through the sensory organs (eyes, ears, nose, skin and tongue) is sent to the sensory nerve connected to these sense organs. These sensory nerves send nerve impulses through the nerve fiber to the spinal cord. From the spinal cord the nerve impulse is transferred to motor nerves.
The motor nerve then sends response to the stimulus though the same path to the region from which stimulus was received and thus the body responds through muscular activity. Such as removal of heat from the heated object if heated sensations were received.