611. Which among the following is not a connective tissue?

1. Blood
2. Bone
3. Skin
4. Cartilage

Option “3” is correct.
Connective tissue consists of reticular connective tissue, adipose tissue, cartilage, bone, and blood. Other kinds of connective tissues include fibrous, elastic, and lymphoid connective tissues.
612. Which of the following is the largest gland in human body?

1. Thyroid
2. Liver
3. Kidney
4. Pancreas

Option “2” is correct.
Liver is the largest gland in human body.
613. In which of the following part of the cell does the pyruvic acid is broken down into carbon dioxide, water and energy?

1. Cytoplasm
2. Nucleus
3. Mitochondria
4. Chloroplast

Option “3” is correct.
Mitochondria break Pyruvic Acid down into Carbon dioxide, water and energy.
614. What is plant cell wall mainly composed of?

1. Lipids
2. Vitamin
3. Cellulose
4. Protein

Option “3” is correct.
In the primary (growing) plant cell wall, the major components are cellulose, hemicellulose and pectin.
615. What is the SI unit of Power?

1. Boyle
2. Watt
3. Newton
4. Pascal

Option “2” is correct.
SI unit of power is watts. A watt is the power that it takes to do one joule of work in one second.
616. Which of the following Phylum are also called flatworms?

1. Mollusca
2. Chordata
3. Ctenophora
4. Platyhelminthes

Option “4” is correct.
Platyhelminthes Phylum are also called flatworms.
617. Order Primata comprising monkey, gorilla and gibbon is placed in class Mammalia along with order Carnivora that includes?

1. Giraffe, Camels and Elephants
2. Crocodile, Lizard and Snake
3. Lion, Leopard and Tiger
4. Tiger, Cats and Dogs

Option “4” is correct.
Tiger, Cats and Dogs is placed in class Mammalia with Order Carnivora.
618. In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre. Such arrangement of primary xylem is called ____________.

1. Xylem fibres
2. Xylem parenchyma
3. Exarch
4. Endarch

Option “3” is correct.
In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre. Such arrangement of primary xylem is called Exarch.
619. The members of chlorophyceae are commonly called _________ algae.

1. Green
2. Brown
3. Red
4. Yellow

Option “1” is correct.
The members of Chlorophyceae are commonly called Green algae.The members of Chlorophyceae generally grow in fresh water (about 90%) and the rest in saline water, terrestrial habitat etc.
620. The body cavity which is lined by mesoderm is called __________.

1. Coelom
2. Chordata
3. Arthropoda
4. Platyhelminthes

Option “1” is correct.
The coelom is the main body cavity in most animals lined by mesoderm and is positioned inside the body to surround and contain the digestive tract and other organs.
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48 thoughts on “Biology”

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