All cells have . (Select all that apply.)

10 answers
Question:

All cells have . (Select all that apply.)

Answers

genetic material

protoplasm

cell membrane

etc

Neurotransmitter can affect postsynaptic cells by causing molecular changes in the cell and initiating signal transduction pathways in the cell.

Explanation:

When stimuli is strong enough then neurotransmitter which is chemical messenger transfer into the nerve impulse. If it is strong enough then it pass on to the postsynaptic cell which cause changes in the structure of neuron. And is all above is carried out when signal transduction occur.

A)All organisms are composed of one or more cells.

B)All cells have membrane-bound structures that have certain functions.

D)The cell is the basic unit of organization on organisms.

Explanation:

Created by Mathias Scheiden and Theodor Schwann, Cell Theory involves the assertion that all living beings are formed by cells and that these cells have functional structures, which was possible as a result of the development of microscopy, being, today, a of the most important generalizations in the field of Biology.

In addition, according to cell theory, the cell is the smallest unit of life, and new cells are formed from the division of cells that already exist, and this process occurs from cell division. Another important pillar of this theory is the fact that the cell is the unit of reproduction and transmission of inherited characteristics, that is, all genetic characters transmitted from parents to children, are transmitted from one cell to another in the process of reproduction.

In summary, cell theory states that:

All organisms are composed of one or more cells. All cells have membrane-bound structures that have certain functions. The cell is the basic unit of organization on organisms.

A. Dilute copper and ascorbic acid solutions should be disposed of in the waste container in the hood.

C. Metal and graphite electrodes should be rinsed with water, dried, and returned to their positions on the lab bench.

D. The contents of the half-cell module should be disposed of in the waste container in the hood.

Explanation: An electrochemical cell is a cell that has the capability of producing Electric energy from chemical reaction (voltaic cells) or using Electric energy to make chemical reactions to take place(electrolytic cell). For a proper or effective waste disposal in an electrochemical cell the following options are correct.

Dilute copper and ascorbic acid solutions should be disposed of in the waste container in the hood.

Metal and graphite electrodes should be rinsed with water, dried, and returned to their positions on the lab bench.

The contents of the half-cell module should be disposed of in the waste container in the hood.

All are except the first one. Microfilaments are designed for support of cell structure.

All living things are made of cells.

Cells are the basic building blocks of life.

News cells come from old cells.

Explanation:

hope this helps

The correct answer is outer membrane or plasma membrane, cytoplasm, protoplasm.

Cell wall is specifically present in plant cell and absent in animal cell and some microbes.Nucleus is absent in Prokaryotes and only present in Eukaryotes.Large vacuoles is a characteristic feature of plant cell and small sized vacuoles is found in animal cells.

The correct answer will be options- Cilia use wavelike actions and Flagella use a whip-like motion.

Explanation:

The cell movement is the important characteristic feature of the cell which allows the organism to perform various functions.  

The cell movement allows the cell in reproduction like the sperm cell posses a long flagellum which uses whip-like motion to swim and cause fertilization. Similarly, the hair-like extensions of the membrane called cilia allow the movement of substances through wave-like motion is the body of the organism like the transport of the oocytes on the female tract.

Thus, the selected options are the correct answer.

The true statements about he T cell receptors are 1, 2 and 4.

T cell receptors are the molecules found on the surface of the T lymphocytes. V(D)J recombination is the unique mechanism of genetic recombination that occurs only in the lymphocytes during the early stages of T and B cell maturation resulting in the T cell receptors. They recognize antigen fragments bound to MHC molecules. Majority of the T cell receptors consists of an alpha chain and a beta chain and a few with gamma and delta chains. Each chain is composed of a variable and a constant region. Within these chains are the complementary determining regions (CDRs) which determine the antigen to which the T cell receptor will bind.  

A,C, and D are correct

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