Nutrition and its Types

Q.

What is difference between intercellular and intracellular digestion?

Q. Mode of nutrition of Cuscuta is ______ .

1. autotrophic
2. parasitic
3. saprophytic
4. holozoic

Q.

Is there mechanical or chemical digestion in the stomach?

Q.

Name the following:(i) A parasitic plant with yellow, slender and tubular stem. (ii) A plant that has both autotrophic and heterotrophic mode of nutrition. (iii) The pores through which leaves exchange gases.

Q.

Name the following types of teeth with their function.

1. A- Incisors- cutting and biting
   B- Canine- Chewing and grinding
   C- Premolar- Chewing and grinding
   D- Molar- Piercing and tearing
2. A- Incisors- Chewing and grinding
   B- Canine- Piercing and tearing
   C- Premolar- Cutting and biting
   D- Molar- Chewing and grinding
3. A- Incisors- Cutting and biting
   B- Canine- Piercing and tearing
   C- Premolar- Chewing and grinding
   D- Molar- Chewing and grinding
4. A- Incisors- Chewing and grinding
   B- Canine- Chewing and grinding
   C- Premolar- Piercing and tearing
   D- Molar- Cutting and biting

Q.

Question 9
In which part of the alimentary canal is food is finally digested?

(a) Stomach
(b) Mouth cavity
(c) Large intestine
(d) Small intestine

Q.

Question 7
Read the following statements with reference to the villi of small intestine.

i) They have very thin walls.
ii) They have a network of thin and small blood vessels close to the surface.
iii) They have small pores through which food can easily pass.
iv) They are finger-like projections.

Identify those statements which enable the villi to absorb digested food.

(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i) and (iv)

Q.

Organisms that are capable of self-nourishment are called:

1. Autotrophs

2. Microbes

3. Heterotrophs

4. Parasites

Q.

Which of the following heterotroph indirectly depends on autotrophs for its survival?

1. Rat

2. Tapeworm

3. Grasshopper

4. Grasshopper

Q.

Difference between epidermis and bark.

Q. The process of obtaining energy from the absorbed food molecules is called:

1. Absorption
2. Assimilation
3. Ingestion
4. Digestion

Q.

Question 8 (b)
Tick the correct answer:
(b) The plant which traps and feeds on insects is:
(i) Cuscuta (ii) china rose (iv) pitcher plant (v) rose

Q.

Name the digestive juice which is secreted by the inner walls of the stomach.

Q. Secretin and cholecystokinin are digestive hormones. They are secreted in:

1. Oesophagus
2. Ileum
3. Duodenum
4. Pyloric stomach

Q. The inner lining of the has numerous finger-like projections known as .

1. stomach
2. small intestine
3. villi
4. colon

Q.

name the finger like structure present in cuscuta which helps in intake of food and water from host plant.

Q. All the organisms listed below are heterotrophic except _________ .

1. cuscuta
2. vulture
3. algae
4. ticks

Q. An organism feels the sensation of hunger only when ______ .

1. blood glucose levels are low.
2. blood glucose levels are high.
3. blood pressure levels fall.
4. blood pressure levels rise.

Q.

Name the finger like structure present in cuscuta which helps in take of food and water from host plant?

Q. Villi are finger-like projections that increase the surface area of the small intestine.

1. True
2. False

Q. (a) Define a nutrient. Name four important nutrients present in our food.
(b) What are the various types of heterotrophic nutrition?

Q.

Question 36
Match the column (A) with the column (B)
$\begin{array}{cc}\text{(A)}& \text{(B)}\\ \text{(a) Parenchyma}& \text{(i) Sclerenchyma}\\ \text{(b) Photosynthesis}& \text{(ii) Buoyancy}\\ \text{(c) Aerenchyma}& \text{(iii) Localized thickenings}\\ \text{(d) Collenchyma}& \text{(iv) Carbon fixation}\\ \text{(e) Permanent tissue}& \text{(v) Thin walled, packing cells}\end{array}$

Q.

What are the digestible proteins?

Q.

Question 9
In which part of the alimentary canal is food is finally digested?

(a) Stomach
(b) Mouth cavity
(c) Large intestine
(d) Small intestine

Q.

Getting rid of wastes is one of the life processes. What name is given to this process?

1. Digestion

2. Nutrition

3. Circulation

4. Excretion

Q. Select the statement(s) which are correct with respect to the obesity.

1. Caused due to intake of excess calories.
2. Junk foods are the major cause of obesity.
3. Obesity leads to many problems such as diabetes.
4. They have lean, weak and swollen limbs.

Q.

In which of the following group of organisms, the solid or liquid food is taken inside the body and then digested and absorbed by the cell?

1. Mushroom, Paramecium, Amoeba
2. Amoeba, Paramecium, Humans
3. Paramecium, Amoeba, Cuscuta
4. Humans, Lice, Tapeworm​

Q. The mode of nutrition in human beings is _______ .

1. autotrophic
2. parasitic
3. heterotrophic
4. saprophytic

Q. Villi are finger-like projections that increase the surface area of the small intestine.

1. True
2. False

Q.

Which is the internal energy reserve in plants? Do the animals have the same energy reserve ?

Justify your answer.