Explore topic-wise MCQs in Life Sciences.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.

1.

Name the plant organelle which acts as a major site for an oxidative reaction?

A. Peroxisomes
B. Mitochondria
C. Chloroplast
D. Thylakoid
Answer» B. Mitochondria
2.

Which class of leucoplast is responsible for fat storage?

A. Amyloplast
B. Proteinoplasts
C. Aleuroplasts
D. Elaioplasts
Answer» E.
3.

NAME_THE_PLANT_ORGANELLE_WHICH_ACTS_AS_A_MAJOR_SITE_FOR_AN_OXIDATIVE_REACTION??$

A. Peroxisomes
B. Mitochondria
C. Chloroplast
D. Thylakoid
Answer» B. Mitochondria
4.

WHICH_CLASS_OF_LEUCOPLAST_IS_RESPONSIBLE_FOR_FAT_STORAGE??$

A. Amyloplast
B. Proteinoplasts
C. Aleuroplasts
D. Elaioplasts
Answer» E.
5.

Which of the following is responsible for pigment synthesis and storage?

A. Leucoplast
B. Chloroplast
C. Chromoplast
D. Etioplast
Answer» D. Etioplast
6.

Which of these are not from plastid family?

A. Chloroplast
B. Tonoplast
C. Chromoplast
D. Leucoplast
Answer» C. Chromoplast
7.

Name the organelle which is used for aerobic respiration and ATP synthesis in Entamoeba histolytica.

A. Hydrogenosome
B. Mitochondria
C. Mitosome
D. Peroxisome
Answer» D. Peroxisome
8.

Which of the following is INCORRECT evidence to support the endosymbiotic theory?

A. Mitochondria are self-repeating bodies like microscopic organisms
B. Mitochondria have their own particular DNA
C. Mitochondrial ribosomes, and enzymes are similar to the bacteria
D. Mitochondria and bacteria differ in size
Answer» E.
9.

Which of the following division technique is similar in mitochondria and bacteria?

A. Binary fission
B. Budding
C. Binary fusion
D. Meiosis
Answer» B. Budding
10.

How do the small molecules pass through the outer membrane of mitochondria?

A. ATP pump
B. Carrier protein
C. Channels
D. Porins
Answer» E.
11.

The inner membrane of mitochondria is fairly smooth.

A. True
B. False
Answer» C.
12.

The site of aerobic respiration in eukaryotic cells is___________

A. Peroxisome
B. Plastid
C. Mitochondria
D. Cilia
Answer» D. Cilia