Nutrition
Respiration
Circulation
Excretion
Mystery Science
100

What is the mode of nutrition in Mushroom?

Saprophytic

100

What does this diagram depict

Gaseous exchange in amoeba

100

Leakage of blood from vessels reduces the efficiency of pumping system. How is leakage prevented ?

Platelets

100

Which part of nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?

 Tubular region - PCT

100

In the slide of an epidermal peel, the parts which appear pink colored after staining with safranin are 

a. nuclei only b. all parts in the peel c. cell membrane and cytoplasm d. stomata only

b. all parts in the peel

200

Name the green dot like structures in some cells observed by a student when a leaf peel was viewed under a microscope. What is the green colour due to ?

Chloroplasts with green colour due to chlorophyll.

200

Which of the following are respiratory organs of scorpion?

(a) Lungs

(b) Book-lungs

(c) Gills

(d) Ctenidia

(b) Book-lungs

200

Most of the carbon dioxide in the blood is carried in the form of

(a) Carbonic acid.

(b) Bicarbonates.

(c) Carbaminohaemoglobin.

(d) Dissolved CO2.

(b) Bicarbonates.

200

Name two waste products which are stored in old xylem in plants

Resins and gums 

200

The breathing roots are the ________. 

a. Stomata b. Rhizoids c. Lenticels d. Pneumatophores

d. Pneumatophores

300

Assume that you are a veterinary surgeon and you had removed a good length of the small intestine of a bear that was suffering from an intestinal tumor. Now, would you suggest a plant based or a meat based diet for the bear after its recovery? Give reason for your answer.

suggest a meat based diet for the bear after its recovery because meat based food can be digested easily in a smaller sized small intestine.

300

Breathing is controlled by a center in the

(a) Lungs

(b) Heart

(c) Cerebellum

(d) Medulla oblongata

(d) Medulla oblongata

300

The duration of one complete cycle of heart is…

a. 0.8s  b. 1.0s c. 0.6s d. None.

a. 0.8s

300

Arrange in descending order in terms of Urea concentration

A. Renal artery 

B. Ureter

C. Renal Vein

B > A > C

300

The maintenance of a constant internal environment is called?

Homeostasis

400

All organs have this inside of them. It allows the food to move through the digestive system

Muscles

400

In normal expiration, the diaphragm is
(a) Arched (b) Flattened
(c) Perforated (d) contracted 

(a) Arched

400
  • Single circulation is found in _ _ _ _ _ :

    (i) hyla, Rana, Draco
    (ii) whale, dolphin, turtle
    (iii) labeo, chameleon, salamander
    (iv) hippocampus, exocoetus, anabas

(iv) hippocampus, exocoetus, anabas

400

Correct order of excretory organs in cockroach, earthworm and rabbit respectively:

(a) Skin, malpighian tubules, kidney

(b) Malpighian tubules, nephridia, kidney

(c) Nephridia, malpighian tubules kidney

(d) Nephridia, kidney, green gland

(b) Malpighian tubules, nephridia, kidney

400

In which organ does the concentration of bile occur?

Gall bladder

500

Photosynthesis is affected by many factors. Which factor does this graph represent? 

Temperature

500

What is the percentage of O2 and CO2 in inhaled and exhaled air?


500

Name the blood vessel 1 

Which blood vessel will have high glucose after a meal? 


Anterior vena cava

6

500

Name the parts labelled A and B

Name the process by which fluid is formed in D

Afferent and Efferent arteriole

Ultrafilteration

500

Label 1 , 2 and 3


1. Grana/ Thylakoid

2. Stroma

3. Starch granule