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djverab [1.8K]
2 years ago
14

PLEASE HELPP (it's due at 11:59, i would like it done now)

Biology
1 answer:
VladimirAG [237]2 years ago
8 0

Answer:

d ycvihivy so gudhsbs xhxx xhx by jebxjd

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Muscle cells are typically high in the number of mitochondria. Why do you think this is the case?
DerKrebs [107]

Answer: it's because they need to provide a lot of energy.

Explanation: fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.

3 0
3 years ago
Why does the amount of chlorophyll limit the rate of Photosynthesis?
12345 [234]

Answer:

Chlorophyll

Explanation:

Chlorophyll is needed for photosynthesis in plants so the ammount of chlrophyll will limit the rate of photosynthesis because its needed for it

5 0
3 years ago
Read 2 more answers
Which of the following best describes an aspect of a membrane's molecular structure that causes it to be selectively permeable?
atroni [7]

Answer:

<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell. </u>

<u />

Explanation:

Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.

While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.

The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.

3 0
3 years ago
Your research group is investigating the possible use of genetically - engineered cells to produce a vaccine for malaria. In par
gregori [183]

Answer:

<u>Attributes of E. coli articulation frameworks  </u>

Advantages:

  • Quick articulation  
  • Simplicity of culture  
  • Significant returns  
  • Cheap  
  • Genome alterations conceivable  
  • Large scale manufacturing quick and practical  

Disadvantages:

  • Proteins with disulfide bonds hard to communicate  
  • Produce unglycosylated proteins  
  • Proteins created with endotoxins  
  • Acetic acid derivation development bringing about cell lethality  
  • Proteins created as consideration bodies  
  • produce dormant proteins  
  • needs collapsing  

<u>YEAST SYSTEM </u>

Advantages:

  • Nearness of post translational change  
  • discharge can be recognized by emission signal  
  • develop in minimal effort media  
  • straightforward hereditary control  

Disadvantages:

  • Low yeild of item  

<u>Bacillus articulation frameworks  </u>

Advantages:

  • Solid discharge  
  • no association of intracellular consideration bodies  
  • Simplicity of control  
  • Hereditarily all around portrayed frameworks  
  • Exceptionally created change and quality substitution advancements.  
  • Unrivaled development qualities  
  • financially savvy recuperation  

<u>Animal Cells:</u>

Advantage:

  • nearness of post interpretation adjustment  

Disadvatages

Issues with creature utilization  

Can get sullied with creature diseases  

Exorbitant downstream preparing

7 0
3 years ago
Which of the following best illustrates a type I survivorship curve, with higher death rates at older ages? Which of the followi
Rama09 [41]

Answer:

large mammals such as gorillas

Explanation:

The survivorship curves refer to the graphical representation of the proportion of the fraction of survivors or the individuals at a given age.

There are three types of survivorship curves which can be constructed by studying the life history of the organisms.

The type I survivorship curve is the curve which can be formed with the organism which has a high survival rate at the younger and middle age and high death rate at the older age. The type I curve can be characterised by its convex shaped. The type I is showed by the large mammals like gorilla, humans and many others.

Thus, large mammals such as gorillas are the correct answer.

4 0
3 years ago
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