Answer:
The process shown in the model requires energy from the cell.
Explanation:
Active transport refers to the movement of materials across the cell membrane against concentration gradient.
The cell membrane remains intact. However, energy is required from within the cell to move materials into the cell against concentration gradient, hence the answer.
Answer:
The correct answer is- Rough endoplasmic reticulum.
Explanation:
The endoplasmic reticulum is membrane-bound structure which divided into two parts rough endoplasmic reticulum and smooth endoplasmic reticulum.
Rough endoplasmic reticulum contain ribosomes on their surface which helps in protein formation. Rough Endoplasmic reticulum is the structure that is involved in the manufacturing protein which is secreted out to the cell.
When these proteins are made in RER they are transported to Golgi bodies where they get modifies and transported outside the cell of in the cell according to their destination.
Answer:
B
Explanation:
gas particles are faster and move free
Answer:
polypeptide chain
Explanation:
each amino acid unit in a polypeptide is called a residue. A polypeptide chain has polarity because its ends are different, with an α-amino group at one end and an α-carboxyl group at the other.
Answer:
<em>like climate change, can permanently alter an ecosystem, but over time the change may cause some
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<em>Genetic variations to become more favorable or less favorable in the new environment. If adaptations to the new environment are not present or do not develop, populations can become extinct.</em>
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