A substance that enters the cell without the expense of cellular ATP, but are too large to directly pass through the membrane, use membrane protein in order to gain access to the inside of the cell.
Further Explanation:
The plasma membrane is an outer boundary of the cell. It is composed of phospholipids and proteins. It is also called selectively permeable membrane because it allows only selective substances to cross. Transport across the membrane can be active and passive transport. Active transport requires energy for the movement of substances, whereas in passive transport the molecules move across the membrane without using energy. Water can freely move inside the cell with the help of aquaporins. Also, the osmotic gradient set plays a vital role in the transportation of water.
Glucose and electrolytes require energy to be transported. Facilitated diffusion is a passive movement of the molecules, across the “plasma membrane”, through the aid of the trans membrane protein or substrate-specific protein. This is used by the molecules that are not able to cross the phospholipid layer freely. But, it doesn’t need energy for the transportation process. Glucose is transported by this method.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Cell Biology
Keywords:
Glucose, transported, facilitated diffusion, water, transportation, permeable membrane, phospholipid, composed, plasma membrane, osmotic gradient.
Answer:Long term drought, change of season from winter to summer, forest fire are unfavorable environmental factors which can deplete the amount of resources already available with the ecosystem. The long term drought will be a condition in which the ecosystem will suffer from non-availability of water.
Explanation:
active transport
dehydration
diffusion
The laboratory setup would most likely be used to demonstrate the process of diffusion.
A Laboratory may be defined as a place where a variety of experiments may be performed depending on the work or projects it handles.
In this experiment, an artificial cell containing glucose and starch solution is dipped into the water containing a starch indicator.
The concentration of glucose or starch is found to be high in the artificial cell, hence, it removes the water or particles from the inside to the outside of the cell.
Diffusion may be defined as the movement of particles or matter from a region of high concentration to a region of low concentration.
Therefore, the laboratory setup would most likely be used to demonstrate the process of diffusion.
To learn more about Diffusion, refer to the link:
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Answer:
I think it’s active transport
Answer:
Alveoli
Explanation:
carbon dioxide and uric acid
oxygen and urine
carbon dioxide and urine
The correct answer is option A
Plants performs both the functions photosynthesis and cellular respiration.The waste product of photosynthesis is oxygen that the plant releases in the environment.
Plants also performs cellular respiration and in the process of cellular respiration the waste product is carbon dioxide.
Hence, the waste products are carbon dioxide and oxygen.
In an analogy between a factory and a cell, tRNA is like the 'delivery truck' that carries the necessary parts (amino acids) to the assembly line (ribosomes). It plays a crucial role in protein synthesis by translating the instructions from DNA and mRNA into a physical protein structure.
In the analogy between a factory and a cell, tRNA might be considered the 'delivery truck' that carries the necessary parts (amino acids) to the assembly line (ribosomes). DNA provides the instructions (genes), mRNA conveys these instructions to the ribosomes, and then tRNA transports the correct amino acids to the ribosomes based on the information in the mRNA. Each tRNA molecule contains an anticodon that matches a specific codon (set of three nucleotides) on the mRNA, allowing it to carry and add the corresponding amino acid to the growing polypeptide chain. This process of translation 'reads' the language of mRNA and translates it into the language of proteins. In other words, tRNA plays an essential role in the synthesis of proteins within a cell, facilitating the transfer of information from DNA and mRNA to a physical, functional protein structure.
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