NEET 2020 Biology Solution
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Azeem Farooqui
(Biochemist)
NEET 2020 Biology Solution
https://documentcloud.adobe.com/link/track?uri=urn:aaid:scds:US:739a5b71-778e-4082-91eb-9c8f7dfc62fd
Azeem Farooqui
(Biochemist)
Anabolism | Catabolism |
1. It is a constructive process of metabolism | It is a destructive process of metabolism |
2. In anabolism, complex molecules (e.g. proteins) are synthesized from simple molecules (Amino acids) | In catabolism, complex molecules (e.g. Glycogen) are broken down into simple molecules (glucose) |
3. It is an energy (ATP) requiring process | It is an energy (ATP) releasing process |
4. It is a “Up-hill” process | It is a “Down-hill” process |
5. E.g. Protein synthesis, Glycogen synthesis, Photosynthesis | E.g. Glycogenolysis, Glycolysis, Digestion, cellular respiration |
Anabolism | Catabolism |
1. It is a constructive process of metabolism | It is a destructive process of metabolism |
2. In anabolism, complex molecules (e.g. proteins) are synthesized from simple molecules (Amino acids) | In catabolism, complex molecules (e.g. Glycogen) are broken down into simple molecules (glucose) |
3. It is an energy (ATP) requiring process | It is an energy (ATP) releasing process |
4. It is a “Up-hill” process | It is a “Down-hill” process |
5. E.g. Protein synthesis, Glycogen synthesis, Photosynthesis | E.g. Glycogenolysis, Glycolysis, Digestion, cellular respiration |
Features | Amphibians | Reptiles |
Group | They come under class Amphibia | They come under class Reptilia |
Habit and habitat | They usually stay near water sources to prevent drying out, and have smooth skin. | They are groups of animals that breathe air, have scales on their bodies, and lay eggs. |
Breathing | Gills, skin and lungs | Lungs |
Metabolism | Ectothermic (Poikilothermic or cold-blooded) | Ectothermic (Poikilothermic or cold-Blooded) |
Metamorphosis | Yes. Breathes water through gills until it develops lungs. | No. Looks like a miniature adult when born. |
Heart | 3-chambered. Two atria and one ventricle | 3-chambered, two atria and one ventricle. But ventricle is partially divided. Crocodiles have 4-chambered heart. |
Limbs | Short fore- limbs and long hind limbs. They are generally pentadactyl (with five webbed digits). | Four limbs are present (except snakes). |
Skin | Smooth, moist, rather sticky skin. Mucous glands are present. | Dry and scaly. Scales are made of keratin. Skin is found underneath the scales. |
Eggs | Soft gel surrounding their eggs without any hard covering. Usually found in water or damp places. | Amniotic egg. Have hard, leathery eggs laid on land or they keep eggs in their bodies until they hatch. |
Reproduction | Sexual. External fertilization | Sexual. Internal fertilization |
Examples | Frogs, toads, newts, salamanders, caecilians or blindworms etc | Snakes, lizards, crocodiles, turtles etc |
Active Absorption of water | Passive absorption of water |
It occurs due to the activity of root and root hairs. | It occurs mainly due to the activity of upper part of the plant such as shoot and leaves. |
Water is absorbed by the osmotic or non-osmotic processes along or against DPD gradient. | Water is absorbed as a result of tension created by transpiration pull. |
It involves symplast (via. Protoplasm) movement of water. | It involves apoplast movement of water. i.e., through cell walls and intercellular spaces. |
It utilizes metabolic energy. | It utilizes solar energy for transpiration. |
Root cells play an active role. | Root cells play a passive role. |
It is independent of transpiration. | It takes place when transpiration is fast. |
It creates a positive pressure in the xylem channels. | It produces a negative pressure in xylem channels. |
Shock is the Condition associated with Circulatory Collapse
Shock is the condition in which there is inadequate flow of oxygenated, blood to the tissues. There is cell hypoxia and inadequate tissue perfusion. The patient has a cold sweaty pallid skin, a weak rapid pulse, irregular breathing, dry mouth, dilated pupils, a decreased level of consciousness, and a reduced flow of urine. Causes include haemorrhage, a decrease in the volume of blood (hypovolaemic shock), reduced activity of the heart (cardiogenic shock), infection (septic shock) and allergic reaction (anaphylactic shock). It may also be due to widespread dilation of the blood vessels so that there is insufficient blood to fill them. This may be caused by the emotional shock due to personal tragedy or disaster (neurogenic shock).
Azeem Farooqui (Biochemist)
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