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3 years ago

When a baby is born why is it important that type 2 alveolar cells are functioning normally?

1 answer:

6 0

There are two types of alveolar cells. The type I alveolar cells which lines the alveoli and much more abundant than type II alveolar cells. Then the type II alveolar cells lesser in number but functions differently than type I alveolar cells. Type II alveolar cells secrete surfactant (composed of lecitin and sphingomyelin) for the lungs. Surfactant reduces the surface tension inside the alveoli, preventing alveolar consolidation. This is important as babies with dysfunctional type II alveolar cells (usually preterm babies less than 32 weeks age of gestation) will have respiratory distress syndrome in the absence of surfactant.

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Photosynthesis transforms blank into chemical energy by blank sugars. Cellular respiration releases the blank from food by blank

creativ13 [48]

Photosynthesis and Cellular respiration, both cellular processes are important for life, however, we need to understand what happens to confirm this information....

<h3>Photosynthesis</h3>

Most life on Earth depends on photosynthesis. The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar). Herbivores then obtain this energy by eating plants, and carnivores obtain it by eating herbivores.

Inside the plant cell are small organelles called chloroplasts, which store the energy of sunlight. Within the thylakoid membranes of the chloroplast is a light-absorbing pigment called chlorophyll, which is responsible for giving the plant its green color. During photosynthesis, chlorophyll absorbs energy from blue- and red-light waves, and reflects green-light waves, making the plant appear green.

<h3>Cellular respiration</h3>

Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

One objective of the degradation of foodstuffs is to convert the energy contained in chemical bonds into the energy-rich compound adenosine triphosphate (ATP), which captures the chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.

With this information, we can say that photosynthesis transforms solar energy into chemical energy through sugars. Cellular respiration releases energy from food through sugars.

learn more about photosynthesis brainly.com/question/1388366?referrer=searchResults

5 0

1 year ago

What could a scientist do to determine what era the Eocene Period belongs to on the geologic time scale?

Burka [1]

Answer:

Option B) study information related to the Cenozoic era

Explanation:

The complete question is

Scientists discovered that the Eocene time period existed in Earths history around 34 MYA. What do they need to do to determine what time period Eocene belongs to on the geologic time scale?

A) learn what happened during Precambrian time

B) study information related to the Cenozoic era

C) view the timing of events in the Mesozoic era

D) research events that happened during the Paleozoic era

Solution -

The period of Eocene belong to the Cenozoic era. The Cenozoic era is divided into three periods-

a) The Paleogene – Existed between 65.5 to 23.03 million years ago

b) The Neogene - Existed between 23.03 to 2.6 million years ago

c) The Quaternary – Started some 2.6 million years ago and is continuing till present

The Paleogene is subdivided into three epochs –

A) The Paleocene – existed between 65.5 to 55.8 million years ago

B) The Eocene – existed between 55.8 to 33.9 million years ago and

C) The Oligocene – existed between 33.9 to 23.03 million years ago

Hence, studying about Cenozoic era will give information about the Eocene epoch

Hence, option B is correct

5 0

3 years ago

Examples of autotrophic bacteria are: (a) parasites (b) saprophytes (c) pathogenic

sweet [91]

Answer:

(d) chemosynthetic forms

Explanation:

Autotrophs are characterized by their ability to produce their own food; parasites, saprophytes, and pathogenic (disease-causing) organisms do not have this ability. Chemosynthetic ones, however, can through the conversion of one or more carbon-containing molecules into organic matter.

7 0

3 years ago

Why is RNA polymerase a good name for the enzyme that carries out transcription

KATRIN_1 [288]

Answer:

RNA Polymerase plays an important role in the process called transcription which result in the in the synthesis of RNA from DNA molecule.

Explanation:

RNA polymerase helps in the addition of ribonucleotides in the growing RNA strans that is synthesized from template DNA .

one ribonucleotide is joined to the adjacent ribonucleotide by the formation of phosphodiester bond.

RNA polymerase is named so because this enzyme helps in the polymerization of ribonucleotides leading to the formation of a Primary RNA transcript.

5 0

2 years ago

What is archaeology? what is paleontology? And what are the difference between them?

Lapatulllka [165]

paleontology is the study of fossils whilst archaeology is the study of human remains and artefacts

7 0

2 years ago

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