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Katena32 [7]
3 years ago
10

How do animal cells, Plant cells, freshwater protists, and

Biology
1 answer:
Romashka [77]3 years ago
6 0

Answer:

Plant cells deal with osmosis by being enclosed in a cell wall.

Animal cells use active transport systems to deal with the problem of osmosis.

Fresh water protists have contractile vacuoles to deal with osmosis.

Many bacteria have cell wall to protect them from osmosis.

Explanation:

Plant cells have a rigid cell wall. If a plant cell is places in a place where the conditions are hypotonic, then the cell will tale up water by osmosis but the cell wall will prevent it from bursting. This condition is termed as the cell being 'turgid'.

As animal cells do not have the rigid cell wall, they use the mechanism of active transport system to stop the cell from bursting during osmosis. In this process, ions are moved out of the cell so that the pressure in the cell due to osmosis can be reduced.

Fresh water protists have a structure present in them called as the contractile vacuole. The contractile vacuole has the capability to remove any excess water from the cell as well storing water if there is not enough water.

Bacteria have peptidoglycan cell walls to prevent osmosis.

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Stolb23 [73]

1.  

17) Derived from mesenchyme. C) Tendon  

Tendon is fibrous connective tissue (made of collagen) that connects muscle to bone.

18) Has a surface to which nothing is attached B) Skin epidermis.  

Epidermis is one of the three skin layers (other two are dermis and hypodermis) of skin that provides a barrier to infection from environmental pathogens.

9) Moves blood through the body. D) Cardiac muscle  

Cardiac muscle is found in heart which pumps blood through the whole body.

20) Moves food through the GI tract. A) Smooth muscle  

Motility through the GI tract is achieved by the contractions of ring smooth muscles (peristalsis).

2.  

21) Smooth muscle. B) Moderate regenerative ability.  

Cells called pericytes are cells that can regenerate smooth muscle cells. Also, smooth muscle cells themselves retain the ability to divide and thus regenerate (increase their own number).

22) Skeletal muscle C) Weak regenerative ability

Skeletal muscle contain  'satellite cells'-stem cells that have the ability to regenerate and repair the damaged fibres.  

23) Cardiac muscle A) Virtually no functional regenerative ability.  

When the cell of cardiac muscle-cardiac muscle cells die, they are not replaced.

24) Areolar connective tissue. D) Regenerates extremely well

Areolar connective tissue is loose connective tissue that hold organs in place. Fibroblasts are cells widely dispersed in this tissue

25) Tendons and ligaments. B) Moderate regenerative ability  

Healing or regeneration of ligaments and tendons can come from the surrounding soft tissues ("extrinsic healing"), or from the ligament /tendon itself ("intrinsic healing").

6 0
4 years ago
A scientist could best determine which ion (F-, Cl-, Br-, or I-) produced the greatest electrical potential in the Experiment by
Serggg [28]

Answer:

a solution of each sodium salt at the same concentration

Explanation:

If a scientist wishes to study the electrical potential that develops between ice  and the sodium salts solution of the ions (F-, Cl-, Br-, or I-) in order to determine which ion produced the greatest electrical potential; he must compare the electrical potential that develops between ice and a solution of each sodium salt at the same concentration.

This means that conclusions can not be reached unless the sodium salt of each ion at the same concentration is compared so as to ensure consistence in the results of the study.

6 0
3 years ago
HYEOO PEEPS what happens when u push a triangular box back and forth on a ramp
jolli1 [7]

Answer:

hi-hi,

i believe the answer is that you'll create friction and thermal heat

Explanation:

https://www.khanacademy.org/science/physics/work-and-energy/work-and-energy-tutorial/v/work-energy-problem-with-friction

this is the video i watched to help answer your question

good luck :)

i hope this helps

**please let me know if this was not what you were looking for/incorrect or both**

have a nice day!

3 0
3 years ago
Given the names of these three enzymes proteases, DNase, RNase what reaction do you expect each one to catalyze
kramer

Answer:

As the name suggests, proteases will be the enzymes which will catalyze the reactions of proteolysis. Proteolysis can be described as the process of breaking proteins into amino acids and simple peptide bonds.

DNases will catalyze the reactions for breaking down or degrading DNA. The DNase does this by breaking the phosphodiester bonds present in the backbone of the DNA.

RNases will be the enzymes which will catalyze the breaking of RNA molecules.

6 0
3 years ago
1. What does the electric field strength
antiseptic1488 [7]

Answer:

Option A. magnitude

Explanation:

Electric field is the area around the electric current where its effect is observed. If the lines of electric field are close to each other, it means electric field is stronger and if the lines are far away from each other so it indicates that the electric field is weak. There is inverse relationship between electric field and distance from the charge. If the distance is higher, so the electric field is weak and vice versa.

6 0
3 years ago
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