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dangina [55]
4 years ago
10

A student from one of the research labs is having trouble preparing a slide for examination and photographing. The bacterial sli

de that he has brought to you was prepared using a commercially purchased stain. He has asked for your help in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. After examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. Which of the following statements does NOT explain the fact that there are no bacteria present on the student’s slide?
Biology
1 answer:
ankoles [38]4 years ago
6 0

Answer: Rinsing with alcohol during the washing step stripped the bacteria off the glass slide.

Explanation:

The step that is being wrong in the whole experiment is that the student is washing the bacteria on the slide with alcohol.

Alcohol might have washed off all the bacteria as it is corrosive in nature. The bacteria that is going to be observed in the experiment is being killed when it is washed off.

This was the wrong step opted by the student if he finds any alternative solution to this then the bacteria can be observed in the microscope.

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Think about water and how it rolls up in the beach. Think of all it's qualities. Is it alive according to the characteristics of
DiKsa [7]

No, it is not alive because water is a non-living thing. Aka it doesn't have cells or organs. The fact that it rolls up on the beach all depends on wind and the gravitational pull of the Earth.

5 0
3 years ago
ATP hydrolysis _______.
yaroslaw [1]

Answer:

The correct answer is to ADP and Pi is the most common mechanism for transferring free energy to drive endergonic reactions.

Explanation:

Many endergonic reactions(the free energy change of these reactions are highly positive) proceed in a thermodynamically unfavorable manner.

     To make those reactions thermodynamically favorable,these reactions are coupled with hydrolysis of high energy compound such as hydrolysis of ATP to ADP and Pi.

    As a result the free energy change of those reactions becomes negative which allow those reactions to proceed in a thermodynamically favorable manner.

6 0
3 years ago
Which of these is not a feature of the prokaryotic cells?
Troyanec [42]

Answer:

D

Explanation:

Prokaryotic are simple cells and do not have nucleus.

7 0
2 years ago
Read 2 more answers
Which organelle is responsible for digesting materials and cleaning up the cell of wastes?
nlexa [21]

Answer:

Lysosomes

Explanation:

  • Lysosome are among the organelles in a eukaryotic cell. Lysosomes are formed by the golgi bodies or the golgi apparatus.
  • <em><u>The role of lysosomes is to digest and destroy old and worn out organelles together with cellular wastes. In other words Lysosomes break down food molecules, waste products, and old worn out cells or organelles.</u></em>
  • They contain powerful lytic enzymes and and acids which help in the digestion and recycling of cellular materials.
5 0
4 years ago
HELP ME I WILL GIVE BRAINIST AWANERR AND On a separate sheet of paper, choose three animals, one that lives in water, one that l
padilas [110]

Answer and Explanation:

Land - Lion

Water - Sealion

Flies - Bees

Lions have strong retractable jaws that help them eat their prey and that way they adapt to their enviroment.

The Sealion's thick, oily fur and a layer of blubber allow them to keep a high temperature in cold waters.  

A Bees body carries an electrostatic charge that attracts pollen and that way they can keep it in them.

Hope this Helps! Have a GREAT day!

4 0
3 years ago
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