Which of these is not a raw material for photosynthesis?
Chlorophyll, xanthophylls and Carotene are
Carbohydrates in the plants are stored in the form of
The carbohydrate group includes sugars, starch , and cellulose. Starch is the usual form in which carbohydrates are stored as energy by plants. It is a white substance which is found in the foods such as potato.
What is the mode of nutrition in fungi?
Which of the following element is essential for the formation of protein
Match the following with correct response.
(1) The red colour of human blood
(2) The pigment which absorbs solar energy
(3) The largest gland of human body
(4) Pumping organ of the body
(A) Chlorophyll
(B) Heart
(C) Liver
(D) Hemoglobin
Which of these juices is secreted by pancreas?
The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.
Factor not affecting photosynthesis is
Which of the following does not respire through lungs?
The air passing through the nostrils in humans is filtered by:
The air passing through the nostrils is filtered by the fine hairs and mucus present in nostrils.
When leaf of a normal plant is boiled in the ethanol and treated with iodine its color changes to:
Two chambered heart is found:
The build-up of lactic acid in muscles can lead to:
Where does the oxygen liberated during photosynthesis come from?
Which component of blood transports, carbon dioxide and nitrogenous wastes in dissolved form
The energy rich compound produced through respiration is
Match the following with correct response.
(1) The tissues transporting water is plants
(2) Translocation of food
(3) Glomerulus
(4) Excretory product in amoeba
(A) Amoeba
(B) Phloem
(C) Xylem
(D) A part of nephron
Name the enzyme present in human saliva
Saliva contains the enzyme amylase, also called ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine. About 30% starch digestion takes place in the mouth cavity.
The final product of glycolsis is
During the process of photosynthesis carbon dioxide is
Which contains less nitrogenous waste ?
Answer : B
Renal artery brings oxygenated blood to the kidneys from the aorta which arises out of heart but this blood is not pure and has nitrogenous waste in it while renal vein carries deoxygenated but filtered blood to the heart from where it is again pumped to the entire body.
A healthy person can inhale up to …………… litres of air in one breath
Match the following with correct response.
(1) Tissue fluid
(2) Atria
(3) Alveoli
(4) Functional unit of kidney
(A) Lymph
(B) a surface for gaseous exchange
(C) Chamber of the heart
(D) Nephron
The ribs move down and inwards during:
During exhalation, ribs move down and inwards, while diaphragm move upwards and relaxes. This reduces the size of the chest cavity and air is pushed out of the lungs.
During photosynthesis, light energy from the sun is absorbed by:
Heart pumps blood more forcefully in older persons than younger ones due to
As one age, arteries lose their elasticity. Consequently, the heart has to pump the blood more forcefully in order to fulfil the need of the body cells.
Which of the following is the common passage for both digestive and respiratory systems?
Which is the vestigial part of human alimentary canal?
Vermiform appendix is considered to be the vestigial part of the human alimentary canal; it is said that human ancestors may have relied upon the appendix for the digestion of cellulose when they lived on a diet that was rich in plant products.
The enzymes pepsin and trypsin are secreted respectively by
Stomach secretes the enzyme pepsin and pancreas produces trypsin. Both of them breakdown protein.
Name the organ involved in the process of ingestion in the case of Amoeba
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