Answer:
Average speed is distance divided by time. Velocity is speed in a given direction. Acceleration is change in velocity divided by time.
Explanation:
Answer:
Explanation:
1. The beam emitted travels along a straight path and it is divergent in nature. It has its radius increasing progressively as the distance away from the source of light increases.
2. It would be observed that the region where the bulb is positioned has denser light beam. This gets fainter towards the edges of the beam and away from the bulb.
Answer:
The ribosomes
Explanation:
Ribosomes are the organelle that produce proteins within eukaryotic and prokaryotic cells- taking information from the DNA in order to produce proteins.
Other organelles may be held responsible for the lack of protein production, but in this case it is most likely the ribosome.
Answer:
The binding of chemical messengers to receptors often results in a shape change, which affects receptor function.
Explanation:
Binding of specific chemical messengers to the corresponding receptors of target cells brings about change in the shape of the receptors. This structural change in the receptor results in the generation of the desired response. It reflects how the form and specific configuration of substances or biomolecules affect their functions.
For example, binding of neurotransmitters to the receptors present on neurons opens the associated ligand-gated ion channels to allow the movement of specific ions through it. In the absence of bound ligand, these channels are present in a closed conformation.
