10th Standard CBSE Syllabus & Materials

10th Standard CBSE

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CBSE 10th Standard Science Subject Life Processes HOT Questions 2 Mark Questions With Solution 2021

Published on: 29/05/2021

QB365 Provides the HOT Question Papers for Class 10 Science, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams

Download CBSE Class 10th Standard CBSE Science question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 10th Standard CBSE Science

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Std: 10th Standard CBSE - Science

chapter: - HOT Questions

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Questions:

What do the following transport?
(a)Xylem
(b)Phloem
(c)Pulmonary vein
(d)Pulmonary artery

Three organisms ate food in the form of glucose and the end products after respiration are:
a - ethanol + CO₂
b - CO₂+H₂O
c - Lactic acid + water
Explain how is this possible?

Name the following in human system:
(i) Balloon like structures richly supplied with blood capillaries.
(ii) Prevents the back flow of blood in heart.
(iii) squeeze out the water with amino acids and other wastes and separates from the blood.
(iv) Bring impure blood to kidney.
(v) Rythmic contraction and relaxation of walls of digestive system

Name the excretory wastes of the following:
(a) Digestive systems
(b) Kidney
(c) Skin
(d) Lungs
(e) Plants stem
(f) Leaves

Give the role of the following in plants and animals:
(a) Guard cells
(b) Tracheids and vessels
(c) Lymph
(d) Phloem
(e) Bio-catalyst

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Answers Key:

(a)Xylem- Transports water and dissolved minerals in plants.
(b)Phloem-Transport prepared food in plants.
(c)Pulmonary vein-Transports oxygenated blood from lungs to left ventricles of heart.
(d)Pulmonary artery -Transports deoxygenated blood from body to right ventricles.

(a) because of anaerobic respiration; (fermentation)
(b) because of aerobic respiration
(c) because of anaerobic respiration in muscle cells.

(i) Alveoli
(ii) Valve
(iii) Bowman's capsule

(a) Faeces
(b) Urea
(c) Sweat
(d) CO₂
(e) Resi
(f) O₂, H₂O and CO₂

(a) Stomatal opening
(b) Transport of water
(c) Fat transport
(d) Transport of food
(e) Speeding up digestive process