General Science Jkssb Biology Set 1 Mcqs (605 MCQs) | JKSSB & SSC Quiz

General Science

jkssb biology set 1 mcqs

Download PDF

Topics

jkssb physics set 1 mcqs jkssb chemistry set 1 mcqs jkssb biology set 1 mcqs

Practice Questions

605 Total
Question 191 Discuss
Ask a Friend

Identify the type of specialised cells found in flatworms that help in osmoregulation.

A
Stem cells
B
Mesoderm
C
Sperm cells
D
Flame cells

Answer & Explanation

Correct Option: D

Flame cells are specialized excretory cells found in the simplest freshwater invertebrates, including flatworms. They function like a rudimentary kidney, removing waste materials and maintaining osmotic pressure.
Question 192 Discuss
Ask a Friend

Identify another name of Choanocytes.

A
Flame cells
B
Sperm cells
C
Stem cells
D
Collar cells

Answer & Explanation

Correct Option: D

Choanocytes are frequently referred to as collar cells due to their anatomy. They are flagellated cells lining the inner cavity of sponges (Porifera), essential for generating water currents and trapping food.
Question 193 Discuss
Ask a Friend

Which of the following is a metabolic disease characterized by elevated blood sugar levels?

A
Hypertension
B
Asthma
C
Arthritis
D
Diabetes

Answer & Explanation

Correct Option: D

Diabetes is a chronic metabolic disorder that occurs when the pancreas does not produce enough insulin or when the body cannot effectively use the insulin, resulting in abnormally high levels of glucose in the blood.
Question 194 Discuss
Ask a Friend

It is a fact that if you drink from a plastic bottle and throw it in the dustbin, it will still be there when your grandchildren are old. What is the reason behind this?

A
Plastics are biodegradable.
B
Plastics are radioactive.
C
Plastics are non-biodegradable.
D
Plastics are heavy metals.

Answer & Explanation

Correct Option: C

Most modern plastics are made from synthetic polymers containing strong chemical bonds that natural decomposing organisms cannot break down. Consequently, they are non-biodegradable and persist in the environment for centuries.
Question 195 Discuss
Ask a Friend

In plant cells, which organelle is responsible for photosynthesis?

A
Chloroplast
B
Mitochondrion
C
Lysosome
D
Peroxisome

Answer & Explanation

Correct Option: A

Chloroplasts are specialized membrane-bound organelles found in plant and algal cells. They contain the green pigment chlorophyll and are responsible for capturing light energy to synthesize carbohydrates via photosynthesis.
Question 196 Discuss
Ask a Friend

What is the term for the process of water loss from plant leaves through tiny openings called stomata?

A
Transpiration
B
Respiration
C
Photosynthesis
D
Germination

Answer & Explanation

Correct Option: A

Transpiration is the biological process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.
Question 197 Discuss
Ask a Friend

Which of the following deficiencies is a leading cause of anemia?

A
Iron deficiency
B
Magnesium deficiency
C
Calcium deficiency
D
Selenium deficiency

Answer & Explanation

Correct Option: A

Iron deficiency is the most common nutritional cause of anemia worldwide. Iron is a critical component of hemoglobin, the protein in red blood cells that is responsible for binding and transporting oxygen.
Question 198 Discuss
Ask a Friend

Which of the following is the structural and functional unit of an organism?

A
Cell
B
ATP
C
Nucleus
D
Mitochondria

Answer & Explanation

Correct Option: A

The cell is universally recognized as the fundamental structural, functional, and biological unit of all known living organisms. It is the smallest unit of life that can replicate independently.
Question 199 Discuss
Ask a Friend

What is the primary function of carbohydrates in the body?

A
To enhance vision
B
To regulate metabolism
C
To build muscle
D
To provide energy

Answer & Explanation

Correct Option: D

Carbohydrates act as the body's primary and most readily available source of energy. During digestion, they are broken down into glucose, which is transported via the bloodstream to power cellular functions.
Question 200 Discuss
Ask a Friend

Which group of beneficial bacteria is commonly used in fermented dairy products?

A
Streptomyces rhizobium
B
Campylobacter jejuni
C
Lactobacillus acidophilus
D
Staphylococcus aureus

Answer & Explanation

Correct Option: C

Lactobacillus acidophilus is a species of lactic acid-producing bacteria commonly used as a probiotic in dairy fermentation. It converts lactose into lactic acid, which curdles the milk and gives yogurt its tart flavor.
Previous Next