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tia_tia [17]
3 years ago
6

Why do sodium ions need channels in order to move into and out in f cells?

Biology
1 answer:
murzikaleks [220]3 years ago
3 0

Answer:

Firstly they are too big to pass through the natural pores of the cell membrane the way water molecules do through aquaporins. Secondly, they would not pass through the hydrophobic layer of the cell membrane because the sodium ions are charged. This is because the hydrophobic layer does not interact positively with charged molecules/ions. Additionally, because sodium ions would be traveling up the concentration gradient into the cell, there is need for active transport. The channels proteins are able to harness energy from ATP to actively transport the sodium ions into the cell.

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A scientist discovers a new species near coral reefs in Australia. She finds that this single-celled species is photosynthetic (
pochemuha

Answer:

1. Eukaryotic

2. Eukaryota

Explanation:

1. Eukaryotic- The newly found species has a cell wall and contains membrane-bound organelles. The presence of membrane-bound organelles shows that the cell is a Eukaryotic cell.

2. Eukaryota- the species is single-celled with the presence of cell wall without peptidoglycan. This shows that the species could belong to the Eukaryota domain proposed by Carl Woese.

Thus, 1. Eukaryotic and 2. Eukaryota is the correct answer.

4 0
2 years ago
A plant produces its own food through the process of photosynthesis. Which of the following materials do plants need in order to
slavikrds [6]

The materials plants need in order to perform photosynthesis are Water and carbon dioxide.

<h3>What is photosynthesis?</h3>

Photosynthesis is a process of converting light energy into chemical energy.

Photosynthesis is performed by chlorophyll-containing plants to produce their food.

The process of photosynthesis is carried out in the presence of sunlight.

It requires water, carbon dioxide, and sunlight.

Thus, the correct option is B, water, and carbon dioxide.

Learn more about photosynthesis, here

brainly.com/question/1388366

3 0
2 years ago
1.what are the characteristics of bacteria
qwelly [4]
#1: Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella. #2: Archaea have more complex RNA polymerases than Bacteria, similar to Eucarya. Unlike bacteria, archaea cell walls do not contain peptidoglycan. Archaea have different membrane lipid bonding from bacteria and eukarya. There are genetic differences. #10: Bacteria are classified into 5 groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. #12: Bacteria reproduce .In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates). Each daughter cell is a clone of the parent cell. #13: Pathogenic bacteria are bacteria that can cause disease. ... One of the bacterial diseases with the highest disease burden is tuberculosis, caused by the bacterium Mycobacterium tuberculosis, which kills about 2 million people a year, mostly in sub-Saharan Africa. Infection with a pathogen does not necessarily lead to disease. Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply.Pathogenic microbes challenge the immune system in many ways. Viruses make us sick by killing cells or disrupting cell function. #14: Antibiotics work by affecting things that bacterial cells have but human cells don't. For example, human cells do not have cell walls, while many types of bacteria do. The antibiotic penicillin works by keeping a bacterium from building a cell wall. HOPE I HELPED I Don’t NO #11
6 0
3 years ago
All of the above'<br>'<br>'<br>'<br><br>]<br>l]p[][p][
SIZIF [17.4K]

Answer:

ummmmmm ok

Explanation:

6 0
2 years ago
Isabella has a systolic pressure of 112mm hg. what is being measured? ressure in arteries during contraction of right atrium
Yakvenalex [24]
A systolic pressure of 112mmhg is a representation of the pressure in arteries during the contraction of the ventricles in the heart. So, C is correct. Systole means contraction while diastole means rest.
6 0
3 years ago
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