Biology Practice Question and Answer

Q:

Who explained the structure and reproductive system of algae in 1935?

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  • 1
    MOP Iyengar 
    Correct
    Wrong
  • 2
    FE Fritsch
    Correct
    Wrong
  • 3
    William Henry
    Correct
    Wrong
  • 4
    Carolus Linnaeus
    Correct
    Wrong
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Answer : 2. "FE Fritsch"
Explanation :

1. Explain the structure and reproductive system of algae in 1935. It was from F.  E. Fritch.

2. The study of algae is known as phycology. It is also known as Algology.

3. Algae are largely aquatic (both fresh and sea water) organisms, which are chlorophyll bearing, simple, thalloid and autotrophic in nature.

Q:

Plants that do not have well-differentiated body design fall in this group. The plants in this group are commonly called algae. These plants are predominantly aquatic.

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    Bryophyta
    Correct
    Wrong
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    Angiosperms
    Correct
    Wrong
  • 3
    Thallophyta
    Correct
    Wrong
  • 4
    Pteridophyta
    Correct
    Wrong
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Answer : 3. "Thallophyta"
Explanation :

1. Plants in the Thallophyta group are commonly called algae.

2. Thallophyta group includes such plants which are produced without embryo.

3. This group includes algae and fungi. Other plants are included in Embryophyta.

4. Pteridophyta includes plants with vascular tissue.

Q:

Match the columns.
 Nutrients                   Examples
 a. Protein                  I. Calcium, Phosphorous
 b. Carbohydrates    II. Cholesterol
 c. Fat                        III. Glucose
 d. Minerals              IV. Myosin

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    a-i, b-iii, c-ii, d-iv
    Correct
    Wrong
  • 2
    a-iii, b-iv, c-ii, d-i
    Correct
    Wrong
  • 3
    a-i, b-ii, c-iii, d-iv
    Correct
    Wrong
  • 4
    a-iv, b-iii, c-ii, d-i
    Correct
    Wrong
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Answer : 4. "a-iv, b-iii, c-ii, d-i"
Explanation :

Explanation:
 Nutrient                 Example

Protein                    Myosin

Carbohydrate         Sugar

Fat                            Cholesterol

Minerals Calcium, Phosphorus

1. Protein is one of the essential nutrients for the body. It is essential for building and repairing muscles, skin, hair, nails and other tissues. Myosin is a protein responsible for muscle contraction.

2. Carbohydrates are the main source of energy for the body. They are found in the form of starch, glucose and fiber. Sugar is a type of carbohydrate that is easily digested by the body and provides energy.

3. Fats are essential nutrients for the body. They help keep the body warm, produce hormones, and build cell walls. Cholesterol is a type of fat made by the body. It is essential for the body, but in excess can cause health problems.

4. Minerals are essential nutrients for the body. They form structural components of the body, help produce hormones, and regulate body functions. Calcium and phosphorus are two important minerals that are necessary for the formation of bones and teeth.

Q:

Which part of the digestive system receives secretions from the liver and the pancreas?

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    Large intestines
    Correct
    Wrong
  • 2
    Stomach
    Correct
    Wrong
  • 3
    Gall bladder
    Correct
    Wrong
  • 4
    Small intestines
    Correct
    Wrong
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Answer : 4. "Small intestines"
Explanation :

The small intestine is the part of the digestive system that receives secretions from the liver and pancreas.

Q:

The human shoulder joint is an example of a ______ joint.

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    fixed
    Correct
    Wrong
  • 2
    pivotal
    Correct
    Wrong
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    hinge
    Correct
    Wrong
  • 4
    ball and socket
    Correct
    Wrong
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Answer : 4. "ball and socket"
Explanation :

1. The human shoulder joint is an example of a ball and socket joint.

2. In this type of joint, a rounded end of one bone fits into a flat or cup-shaped recess of the other bone.

Q:

What is the full form of OCD?

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    Obesity-Compulsive Disorder
    Correct
    Wrong
  • 2
    Obsession-Controlling Device
    Correct
    Wrong
  • 3
    Obesity-Controlling Device
    Correct
    Wrong
  • 4
    Obsessive-Compulsive Disorder
    Correct
    Wrong
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Answer : 4. "Obsessive-Compulsive Disorder"

Q:

A/an ______ is any substance that causes your immune system to produce antibodies against it.

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  • 1
    protein
    Correct
    Wrong
  • 2
    glucose
    Correct
    Wrong
  • 3
    platelet
    Correct
    Wrong
  • 4
    antigen
    Correct
    Wrong
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Answer : 4. "antigen"

Q:

Which of the following diseases is caused by fungus?

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    Ringworm
    Correct
    Wrong
  • 2
    Diarrhoea
    Correct
    Wrong
  • 3
    Small pox
    Correct
    Wrong
  • 4
    Polio
    Correct
    Wrong
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Answer : 1. "Ringworm"

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