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3 years ago

Which of the following characterizes the lag phase of the bacterial growth curve?

Biology

1 answer:

Zepler [3.9K]3 years ago

3 0

Answer:

Little increase in cell number

Explanation:

There are four distinct phases in the bacterial growth curves that is lag, log, stationary and death phase. The lag phase of the bacterial growth curve is characterized by very little increase in the cell number.

The growth rate of bacteria in the lag phase is slow because the medium is new to the bacterial culture and it requires time for bacteria have to adapt to the new cultural environment and to synthesize enzymes required for substrate utilization.

After getting adapt in their new environment bacteria starts to grow at an exponential rate. So little increase in cell number characterizes the lag phase.

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If you were putting description on a model, you would put a card saying " a discrete continuous molecule of DNA wrapped protein"

stiv31 [10]

Answer:

chromosome

Explanation:

A chromosome consists of entire set of genes with in an organism’s total population.

DNA with is a chromosome is arranged in a discrete short and wide units. A chromosome consists of millions of DNA base pairs which consists of large number of genes. The chromosome structure comprises of double helix DNA wrapped around proteins. DNA with in chromosome provide basis for chromosome synthesis.

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3 years ago

A baby was born with phocomelia-like syndrome. this is due to which drug taken by the mother during pregnancy?

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Aldosterone is synthesized from cholesterol. <br> a. True<br> b. False

patriot [66]

Answer:

The correct answer is A. Effectively, aldosterone is synthesized from cholesterol.

Explanation:

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3 years ago

What variables should the scientists control in the experiment

Drupady [299]

Answer:

It's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variable. When possible, control variables should be identified, measured, and recorded.

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3 years ago

Introducing a vascular catheter directly into a vessel without further advancement past the punctured vessel is called _________

Alex_Xolod [135]

It is called central vascular catheterization

<h3>Importance of catheterization</h3>

Catheterization is defined as the use of medical devices that can be inserted into the body and used for different medical purposes.

Vascular catheterization is a peripheral catheterization that is used to detect certain upper and lower peripheral extremity conditions.

There are different types of vascular catheterization which include:

Arteriovenous (AV) fistula,

Arteriovenous (AV) graft and

Central venous catheter (CVC)

Central vascular catheterization involves Introducing a vascular catheter directly into a vessel without further advancement past the punctured vessel.

Learn more about catheterization here:

brainly.com/question/3911876

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2 years ago