By moving substances across membranes, transport proteins make everything from nerve impulses to cellular metabolism possible. Without transport proteins, for example, the sodium-potassium gradient that allows our nerves to fire would not exist.
The total mass of A and C which are glucose and oxygen, is equal to the total mass of B and D, which are water and Carbon dioxide.
the law of conservation states that no energy or matter should be lost during a reaction therefore total masses should be equal so you're looking to 2 numbers that equal each other when added and the only 2 are A and C equal B and D
In respiration we know that the waste products are water vapor (H2O) and carbon dioxide.
Which makes the last statement correct.
Answer:
Oviparous
Explanation:
This is similar to animals laying eggs. Eggs are the tough cases inside which you have the embryo. Next to it, there are all the necessary nutrients it needs to develop outside its mother. Birds develop entirely outside their mothers, needing only the right environmental conditions to do so.
Answer:
Describe how the students would use the apparatus to show that there were microorganisms present in the air in the laboratory. Remember to think carefully about experimental design and how to make the results reliable.
Title: using apparatus to know the presence of microorganisms
aims and objectives: description of presence of microorganisms in the air
materials and method: petri dish, agar, distilled water, hand gloves, nose mask, pipette e.t.c
methodology: pipette is used to measure the amount of water in a petri dish and placed outside where hands can not be touched for 24 hours, after then the water is taken to the lab and agar is added for bacteria growth, after 24 hours, if the microbial growth is seen on the cultured plate, then it shows that the air is contaminated with microorganism which mixes with water when exposed to air
precaution: i ensured personal protective equipment are worn throughout the experiment.
conclusion: it is ascertained that air is contaminated with microorganism as a result of the above performed experiment
Explanation:
