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Andrew [12]
3 years ago
14

Is diffusion the only way materials can enter the cell?

Biology
1 answer:
sammy [17]3 years ago
6 0
Diffusion is not the only way for particles to enter the cell. A process called endocytosis is another way for particles to enter cells by active transport. The process means engulfing and requires energy. On the other hand, another active transport process called exocytosis is the process of removing particles from the cells. 
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Alice's teacher has given her a cup of water. She needs to find the volume of the water. How can Alice find the volume of the wa
Leto [7]

Answer: A. Alice can pour the water into a graduated cylinder to find the volume

Explanation: If you put water into a graduated cylinder, you get accurate numbers. This helps with the equation because estimating isn't always the best way to go. Putting a ruler in the water wont help because you don't know what number the water started at before the displacement. The thermometer won't work either because that is used for temperature.

6 0
3 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
In an experiment two potted plants, labeled Plant 1 and Plant 2, are placed in transparent plastic bags and left in the open. So
Sloan [31]

Answer:

Its D. role of carbon dioxide in photosynthesis.

Explanation:

I know its right bc I just got that question.

7 0
3 years ago
Which of the following is not true?
ad-work [718]
The correct answer for the question is B, ATP contains less potential energy than ADP.

Explanation;
ATP contains more energy potential than ADP , since it has three phosphate bonds unlike ADP which has 2 phosphates.
A. is true; During glycolysis ATP is formed, Glycolysis uses 2 ATP molecules and also generates four ATP molecules which gives a net energy of 2 ATP molecules.
C is true, as plant cells generate ATP during cellular respiration. Cellular respiration is the process in which cells generate energy in form of ATP through oxidative phosphorylation in the mitochondria. 
D. is true; ATP is used as a mobile energy carrier molecule by all cells. It used by these cells to fuel all cellular activities. 
6 0
3 years ago
Read 2 more answers
At each replication fork, one new strand of dna is made as one continuous piece. what is this strand of dna called?
Travka [436]
A leading strand because it breaks off into the front of the cell

4 0
3 years ago
Read 2 more answers
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