NUTRITION
The enzyme responsible for the digestion of proteins in the small intestine is:
(a) Pepsin
(b) Trypsin
(c) Amylase
(d) Lipase
(b) Trypsin
Here, the maximum exchange of material between blood and surrounding cells takes place -
(a) Veins
(b) Heart
(c) Capillaries
(d) Arteries
(c) capillaries
The process by which blood is cleared of metabolic waste in case of kidney failure is called-
(a) transplantation
(b) artificial kidney
(c) dialysis
(d) filtration
(c) dialysis
A respiratory pigment called …………… has a high affinity for oxygen and helps to transport oxygen to various parts of our body.
Haemoglobin
The vein which brings clean blood from the lungs into the heart is known as:
a) Pulmonary vein
b) Hepatic vein
c) Superior vena cava
d) Pulmonary artery
(a) Pulmonary vein
Diabetes develops as the result of a problem with which specific organ in the body?
Pancreas
The major driving force for the water in the xylem during day time is the …………… . It also helps in removal of .................. from plant body.
Transpiration
excess water
The purpose of making …………… is to filter out harmful nitrogenous waste products like ...............from the blood.
Urine and urea/uric acid
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to
(a) conversion of pyruvate to ethanol
(b) conversion of pyruvate to glucose
(c) non conversion of glucose to pyruvate
(d) conversion of pyruvate to lactic acid
And, it happens- in the _ _ _ _ _ _ _ of Oxygen.
(d) conversion of pyruvate to lactic acid
and in the lack of oxygen.
Which part of the Nephron does the major filtration process by filtering glucose. amino acids, salts etc from the blood.
Glomerulus
The complete digestion of food takes place at ................. which is lined by ................. for maximum absoprtion of food.
Small intestine
villi
How does the transport of food takes place in plants?
what is the process called for this type of transportation?
Phloem
translocation
Choose the correct path of urine in our body
(a) kidney → ureter → urethra → urinary bladder
(b) kidney → urinary bladder → urethra → ureter
(c) kidney → ureters → urinary bladder → urethra
(d) urinary bladder → kidney → ureter → urethra
(c) kidney → ureters → urinary bladder → urethra
What is the energy currency of our body?
Explain its name.
ATP
Adenosine triphosphate
Name 3 ways through which excretion takes place in Plants.
Through Stomata
Through Roots in soil
Storing waste materials in Xylem
Through falling leaves
through transpiration
(any 3)
Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?
(a) Fats breaking down into fatty acids and glycerol.
(b) Proteins breaking down into amino acids.
(c) Absorption of vitamins.
(d)Starch breaking down into sugars.
(d) Starch breaking down into sugars.
The hear of fishes are divided into ........ chambers, while humans have .......... chambered heart and Frog's heart has ............... chambers.
2
4
3
I am the main filtration unit of excretory system. I have these 3 very important functions to perform. Without me, the excretory system is of no use.
Identify me and my 3 functions-
(i)
(ii)
(iii)
Nephron
(i) Filtration
(ii) Re-absorption
(iii) Secretion
Name the site of respiration in living beings.
What is the term by which it is also known as?
Mitochondria
powerhouse of the cell
Name and write correctly the process by which Amoeba acquire its food.
Endocytosis or phagocytosis
Which is the correct sequence of body parts in the human alimentary canal?
(a) Mouth → stomach → small intestine → large intestine → oesophagus
(b) Mouth → oesophagus → stomach → small intestine → large intestine
(c) Mouth → stomach → oesophagus → smallintestine → large intestine
(d) Mouth → oesophagus → stomach → large intestine → small intestine
(b) Mouth → oesophagus → stomach → small intestine → large intestine
What is the major difference between the processes of transportation of water and transportation of food?
Energy is utilized for the transportation of food by phloem
The nitrogenous waste produced in the human body is in the form of .............. which is converted to ........... before excretion in the body itself.
Ammonia
urea/uric acid
Give 2 major differences between photosynthesis and respiration.
photosynthesis takes place at day while respiration happens all the time.
Co2 is utilized in photosynthesis and CO2 is evolved during respiration.
Photosynthesis occurs in chloroplast and Respiration in mitochondria
(any 2)
Name 5 movies with the word "dil" in it.
any 5