Question 1

Which gland is not associated with human alimentary canal?&#10;A)salivary glands&#10;B)adrenal gland&#10;C)liver&#10;D)pancreas

Accepted Answer

The adrenal gland is not associated with the human alimentary canal. It is involved in producing hormones like adrenaline and cortisol, which are crucial for stress response and metabolism but does not play a direct role in digestion.

Question 2

In humans, bile juice is secreted by&#10;A)pancreas&#10;B)small intestine&#10;C)esophagus&#10;D)liver

Accepted Answer

Bile juice is secreted by the liver. It plays a crucial role in the digestion and absorption of fats in the small intestine.

Question 3

An enzyme which can only act in acidic medium is&#10;A)pepsin&#10;B)trypsin&#10;C)rennin&#10;D)amylase

Accepted Answer

Pepsin is an enzyme that functions optimally in the acidic environment of the stomach.

Question 4

The part of digestive system where no digestion occurs&#10;A)duodenum&#10;B)esophagus&#10;C)stomach&#10;D)mouth

Accepted Answer

The esophagus is a muscular tube that conveys food from the mouth to the stomach. It does not play a role in the chemical digestion of food; its primary function is to transport food to the stomach through peristalsis.

Question 5

Which of the following animals has no need for a gall bladder?&#10;A)horse&#10;B)lion&#10;C)dog&#10;D)human

Accepted Answer

Horses do not have a gall bladder because their diet consists mainly of grass, which requires constant grazing and a steady flow of bile from the liver, making the storage function of a gall bladder unnecessary.

Question 6

About how much saliva does a person produce each day?&#10;A)100 ml&#10;B)250 ml&#10;C)500 ml&#10;D)1500 ml

Accepted Answer

On average, a person produces about 1500 ml (or 1.5 liters) of saliva each day. This amount can vary based on factors such as diet, health, and activity levels. Saliva plays a crucial role in digestion, oral health, and maintaining the pH balance in the mouth.

Question 7

Saliva has the enzyme&#10;A)pepsin&#10;B)ptyalin&#10;C)trypsin&#10;D)rennin

Accepted Answer

Ptyalin, also known as salivary amylase, is the enzyme present in saliva that initiates the breakdown of starches into simpler sugars.

Question 8

Curdling of milk in the stomach is due to the action of&#10;A)pepsin&#10;B)rennin&#10;C)HCL&#10;D)rennin.

Accepted Answer

Rennin, also known as chymosin, is an enzyme specifically involved in the coagulation of milk, causing it to curdle in the stomach, which is particularly important for the digestion of milk in young mammals.

Question 9

Pepsinogen is secreted by&#10;A)gastric glands&#10;B)intestinal glands&#10;C)chief cells&#10;D)parietal cells

Accepted Answer

The answer of Pepsinogen is secreted by&#10;A)gastric glands&#10;B)intestinal glands&#10;C)chief cells&#10;D)parietal...

Question 10

Pancreas has&#10;A)only endocrine cells&#10;B)only one type of cell, the same functioning both in an exocrine and endocrine fashion&#10;C)two types of cells-exocrine and endocrine&#10;D)only exocrine cells

Accepted Answer

The pancreas has two main types of cells: exocrine cells that produce enzymes to help with the digestion of food, and endocrine cells (found in the Islets of Langerhans) that produce hormones like insulin and glucagon to regulate blood sugar levels.

Question 11

Grana refers to&#10;A)glycolysis of glucose&#10;B)by-product of photosynthesis&#10;C)stacks of thylakoids&#10;D)stacks of quantasomes

Accepted Answer

The answer of Grana refers to&#10;A)glycolysis of glucose&#10;B)by-product of photosynthesis&#10;C)stacks...

Question 12

A specific function of light energy in the process of photosynthesis is to A)activate chlorophyll B)split water C)synthesis glucose D)reduce CO₂

Accepted Answer

The answer of A specific function of light energy in...

Question 13

ATP formation during photosynthesis is known as&#10;A)phosphorylation&#10;B)photophosphorylation&#10;C)oxidative phosphorylation&#10;D)substrate level phosphorylation

Accepted Answer

The answer of ATP formation during photosynthesis is known as&#10;A)phosphorylation&#10;B)photophosphorylation&#10;C)oxidative...

Question 14

Dark reaction in photosynthesis is called so because&#10;A)it does not require light energy&#10;B)cannot occur during daytime&#10;C)occurs more rapidly at night&#10;D)it can also occur in darkness

Accepted Answer

The answer of Dark reaction in photosynthesis is called so...

Question 15

Which of the following is connected with transport of water in plants?&#10;A)phloem&#10;B)xylem&#10;C)epidermis&#10;D)cambium

Accepted Answer

The answer of Which of the following is connected with...

Question 16

The ultimate cause for movement of water against gravity in a tree is&#10;A)osmosis&#10;B)imbibitions&#10;C)transpiration&#10;D)photosynthesis

Accepted Answer

The answer of The ultimate cause for movement of water...

Question 17

Which of the following is not an example of a selectively permeable membrane?&#10;A)plasma lemma&#10;B)cell Wall&#10;C)mitochondrial membrane&#10;D)chloroplast membrane

Accepted Answer

The answer of Which of the following is not an...

Question 18

Which of the following is responsible for guttation?&#10;A)root pressure&#10;B)transpiration&#10;C)photosynthesis&#10;D)osmosis

Accepted Answer

The answer of Which of the following is responsible for...

Question 19

Phenyl mercuric acetate&#10;A)reduces transpiration rate&#10;B)reduces photosynthesis&#10;C)kills the plant&#10;D)reduce respiration

Accepted Answer

The answer of Phenyl mercuric acetate&#10;A)reduces transpiration rate&#10;B)reduces photosynthesis&#10;C)kills the...

Question 20

Which of the following has no blood but respires?&#10;A)earthworm&#10;B)hydra&#10;C)cockroach&#10;D)fish

Accepted Answer

The answer of Which of the following has no blood...

Question 21

Which type of respiratory organs are present in spiders and scorpions?&#10;A)book lungs&#10;B)gill books&#10;C)gills&#10;D)lungs

Accepted Answer

The answer of Which type of respiratory organs are present...

Question 22

At high altitude, RBCs of human blood will&#10;A)increase in number&#10;B)decrease in number&#10;C)decrease in size&#10;D)increase in size

Accepted Answer

The answer of At high altitude, RBCs of human blood...

Question 23

Vocal cords occur in&#10;A)pharynx&#10;B)glottis&#10;C)bronchial tube&#10;D)larynx

Accepted Answer

The answer of Vocal cords occur in&#10;A)pharynx&#10;B)glottis&#10;C)bronchial tube&#10;D)larynx...

Question 24

Which one of the following structures closes the respiratory passage during ingestion of food?&#10;A)larynx&#10;B)epiglottis&#10;C)hard palate&#10;D)soft palate

Accepted Answer

The answer of Which one of the following structures closes...

Deck 1: Biology and Physiology: Glands, Digestion, Photosynthesis, and Respiration