Which is the best definition of a prokaryotic cell

QUESTION POSTED AT 14/02/2020 - 04:26 PM

Answered by admin AT 14/02/2020 - 04:26 PM

Plant cell or lacks a nucleus and membrane bound hope this helps
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Related questions

The smaller a cell is, the more difficult it is for the cell to move enough materials across its cell membrange true of false

I would say that this is false, it would seem to be the best answer in this question.

ANSWERED AT 28/02/2020 - 07:33 PM


QUESTION POSTED AT 28/02/2020 - 07:33 PM

True or false? The smaller a cell is, the more difficult it is for the cell to move enough materials across its cell membrange.

The correct answer to if the smaller a cell is, the more difficult it is for the cell to move enough materials across its cell membrane is False

ANSWERED AT 28/02/2020 - 05:28 PM


QUESTION POSTED AT 28/02/2020 - 05:28 PM

Help quickly need this done quick 1. Can you recall why the Cell Theory was developed? 2. What are the three parts of the Cell Theory? 3. Based on what you know, how would you explain each part of the Cell Theory? 4. Please list the properties of life that cells possess.

I know number 2 off the top of my head:
1. Cells are the most basic unit of life.
2. All living things are composed of cells.
3. Cells come from other cells.

ANSWERED AT 28/02/2020 - 05:25 PM


QUESTION POSTED AT 28/02/2020 - 05:25 PM

HELP QUICKLY! 2. Cell Wall Chloroplast Cytoplasm Endoplasmic Reticulum Golgi Apparatus Mitochondria Nucleus Vacuoles Cell Membrane Briefly describe the function of each of the organelles listed above. 3. Can you make a distinction between plant and animal cells? (What is the difference?).

2. cell wall is around plant cells, regulates transport in and out of cell. 
3.a plant cell does not have lysosomes whereas an animal  cell does

ANSWERED AT 28/02/2020 - 05:25 PM


QUESTION POSTED AT 28/02/2020 - 05:25 PM

The _______ helps maintain homeostasis in the cell by controlling what comes in and out of the cell. (A)cell membrane (B)nucleus (C)cell barrier (D)cell door

A ) cell membrane recall the its semipermeable so it controls what goes in and out of the cell and that helps is stay in a stable internal environment (homeostasis)

ANSWERED AT 28/02/2020 - 05:20 PM


QUESTION POSTED AT 28/02/2020 - 05:20 PM

Which type of mutation is responsible for causing sickle cell anemia? inversion point deletion frameshift

It is point mutation.

ANSWERED AT 28/02/2020 - 05:15 PM


QUESTION POSTED AT 28/02/2020 - 05:15 PM

What does a red blood cell look like placed in water?

It dissolved because it liquid

ANSWERED AT 28/02/2020 - 05:13 PM


QUESTION POSTED AT 28/02/2020 - 05:13 PM

Differences between prokaryotic and eukaryotic promoters?

Prokaryotes only contain three different promoter elements: -10, -35 promoters, and upstream elements. ... Another main difference between the two is that transcription and translation occurs simultaneously in prokaryotes and in eukaryotes the RNA is first transcribed in the nucleus and then translated in the cytoplasm.

ANSWERED AT 28/02/2020 - 05:08 PM


QUESTION POSTED AT 28/02/2020 - 05:08 PM

Why must a plant cell also use cellular respiration?

Because their cell needs energy to stay alive.

ANSWERED AT 28/02/2020 - 05:06 PM


QUESTION POSTED AT 28/02/2020 - 05:06 PM

In addition to storage of white blood cells the lymphatic system is also responsible for ________.

Cleansing The Environment , Returning Proteins and tissue to the blood , Defending The Body Against Disease , Providing a Pathway For The Absorption Of Fats and Fat Soluble Vitamins Into The Bloodstream 

ANSWERED AT 28/02/2020 - 04:47 PM


QUESTION POSTED AT 28/02/2020 - 04:47 PM

During blank , cells break down glucose molecules in the presence of oxygen releasing energy

CELLULAR RESPIRATION

ANSWERED AT 28/02/2020 - 03:43 PM


QUESTION POSTED AT 28/02/2020 - 03:43 PM

. Please list the properties of life that cells possess.

Metabolism
Reproduction
Homeostasis

ANSWERED AT 28/02/2020 - 03:33 PM


QUESTION POSTED AT 28/02/2020 - 03:33 PM

. Based on what you know, how would you explain each part of the Cell Theory?

I think all organisms are made up of one or more cells and cells are the basic units of life and all cells arise from pre-existing cells. 

ANSWERED AT 28/02/2020 - 03:31 PM


QUESTION POSTED AT 28/02/2020 - 03:31 PM

20 POINTS!! What is the purpose of the G2 phase of interphase? Check all that apply. to copy DNA to ensure DNA is copied correctly to ensure the cell is the proper size to allow the cell to grow if needed

to ensure DNA is copied correctly

to ensure the cell is the proper size

to allow the cell to grow if needed

ANSWERED AT 28/02/2020 - 03:09 PM


QUESTION POSTED AT 28/02/2020 - 03:09 PM

Cells can conduct many tasks, including which of the following?

Metabolism
Reproduction
Homeostasis

ANSWERED AT 28/02/2020 - 02:50 PM


QUESTION POSTED AT 28/02/2020 - 02:50 PM

An organism with 24 chromosomes in each body cell will produce sex cells with __________ chromosomes. A) 12 Eliminate B) 24 C) 48 D) 96

Correct answer: A). 12

Sex cells are formed by the process of meiosis, and after the process of meiosis, the cell contains the half number of chromosomes as present in the parent. So if the parent has 24 pairs of the chromosome, then sex cells must contain 12 chromosomes, in order to form a diploid set of chromosomes after fertilization.





ANSWERED AT 28/02/2020 - 02:27 PM


QUESTION POSTED AT 28/02/2020 - 02:27 PM

Do the cells beneath the formative phase differ from each other

Yes due to their structure and function they are differ from each other

ANSWERED AT 28/02/2020 - 02:27 PM


QUESTION POSTED AT 28/02/2020 - 02:27 PM

Osmosis, or the movement of water into and out of a cell, is directly related to the concentration gradient on both sides of the cell membrane and indirectly to the fact that

Answer:

The osmosis refers to the movement of water down the concentration gradient of water across the semi-permeable.

The rate of osmosis depends directly on the concentration gradient.

However, it may indirectly depend upon factors such as the surface area of a cell and temperature.

Cells reduce their size in order to increase the surface area to volume ratio. It increases the rate of osmosis.

Similarly, with an increase in the temperature the rate of osmosis also increases.

ANSWERED AT 28/02/2020 - 02:22 PM


QUESTION POSTED AT 28/02/2020 - 02:22 PM

Cells obtain energy by either capturing light energy through photosynthesis or by breaking down carbohydrates through cellular respiration. In both photosynthesis and cellular respiration, the energy is ultimately derived from the Sun in a HELP

Answer: The correct answer is- The energy is ultimately derived from sun in a form of photons.

Explanation-

Photon is a visible light particle that is absorbed by green plants and algae in a process called photosynthesis. It is used to synthesize food that is a carbohydrate ( glucose), which is utilised for various processes.

The food synthesized through photosynthesis is consumed by heterotrophs ( like human beings) and it is used to derive energy through a process called cellular respiration ( glucose is metabolized to derive energy in the form of ATP).

Thus, in both plants and animals, the ultimate source of energy is sun.



ANSWERED AT 28/02/2020 - 02:13 PM


QUESTION POSTED AT 28/02/2020 - 02:13 PM

Identify the organelles in the cell

Cell membrane, cytoplasm, mitochondria, lysosomes, ribosomes, nucleus, golgi apparatus, cell wall ( plant ), chloroplast (plant)

ANSWERED AT 28/02/2020 - 02:11 PM


QUESTION POSTED AT 28/02/2020 - 02:11 PM

Which of these is NOT a way that large molecules, like glucose, can enter a cell? A) diffusion through the cell membrane. B) facilitated diffusion through protein channels in the cell membrane. C) endocytosis when the cell engulfs the particles with pseudopods. D) active transport, when the cell pumps large molecules in through the membrane.

Answer: Option A

Explanation: The phenomenon of diffusion is used for the transfer of smaller and non polar molecules across the membrane. The movement takes place from the higher concentration towards lower concentration.

The movement of the glucose across the membrane is not possible as it is large molecule that cannot pass through the membrane.

ANSWERED AT 28/02/2020 - 01:55 PM


QUESTION POSTED AT 28/02/2020 - 01:55 PM

A cell from the liver of a tuna is placed in ocean water. what would be a correct description of this situation?

The cell has been placed in a hypertonic solution.

ANSWERED AT 28/02/2020 - 01:53 PM


QUESTION POSTED AT 28/02/2020 - 01:53 PM

Which hormone is produced by fat cells in the body and serves to relay information about nutrition to the hypothalamus?

Leptin is produced by fat cells in the body and serves to relay information about nutrition to hypothalamus

ANSWERED AT 28/02/2020 - 01:46 PM


QUESTION POSTED AT 28/02/2020 - 01:46 PM

In humans, oxygen is delivered to the cells of the body by the ______ system.

In humans, oxygen is delivered to the cells of the body by the circulatory system.

Hope this helps !

Photon

ANSWERED AT 28/02/2020 - 01:41 PM


QUESTION POSTED AT 28/02/2020 - 01:41 PM

When during the cell cycle does the centeromere break??

The centromere is broken when going through the stage of Anaphase

The centromeres breaks, releasing the sister chromatids as individual chromosomes

ANSWERED AT 28/02/2020 - 01:37 PM


QUESTION POSTED AT 28/02/2020 - 01:37 PM