Lysosomes

Q.

What would happen to a cell if it didnt contain any lysosomes or if its lysosomes werent functioning?

Q.

Lysosome arises from:

1. Endoplasmic reticulum

2. Golgi apparatus

3. Nucleus

4. Mitochondria

Q.

What is the endoplasmic reticulum made up of?

Q.

Name the cleansing organelle in the cell.

Q.

Which organelle is called the digestive bag and why?

Q.

What is the difference between endosome and lysosome?

Q.

Why are lysosomes bad?

Q.

Why are lysosomes called digestive bags or suicidal bags?

Q.

What is apoptosis?

1. Living organism committing suicide

2. Killing of cell by other cell

3. Programmed death of a cell

4. Natural death of a cell

Q. Lysosome membrane has molecules which prevents it from self-destruction by the enzymes present inside it.

1. protein
2. sugar
3. inorganic
4. lipid

Q. Which one of the following cell organelles is enclosed by a single membrane ?

1. Mitochondria
2. Chloroplasts
3. Lysosomes
4. Nuclei

Q. Lysosomes are called ‘suicide bags of cell’ because they have

1. hydrolytic enzymes
2. parasitic activity
3. food vacuole
4. anabolic enzymes

Q.

How is a lysosome formed in the cell?

Q.

What is the ideal pH for the function of lysosomes?

1. pH 7

2. pH 5

3. pH 8

4. Activity of the lysosome enzymes are not dependent on pH

Q. Match column 1 with column 2 and choose the correct option.
$\begin{array}{cc}\text{Column 1}& \text{Column 2}\\ \text{A. Acrosome}& \text{1. Antrum}\\ \text{B. Tertiary follicle}& \text{2. Zona pellucida}\\ \text{C. Middle piece}& \text{3. Enzymes}\\ \text{D. Secondary oocyte}& \text{4. Mitochondria}\end{array}$

1. A-3, B-1, C-4, D-2
2. A-2, B-4, C-1, D-3
3. A-4, B-3, C-1, D-2
4. A-3, B-2, C-4, D-1

Q. What type of enzymes is present in lysosomes?

1. Hydrolases
2. Lyases
3. Oxidoreductases
4. Ligases

Q. Lysosomes are organelles which have abundant which help in digestion of molecules and pathogens.

1. hormones
2. hydrolytic enzymes
3. hydrophobic enzymes
4. steroids

Q.

What part of the cell does serve to process, package and export proteins?

1. Mitochondria

2. Endoplasmic reticulum

3. Nucleolus

4. Golgi apparatus

Q. Lysosomes originate from

1. plasmalemma
2. Golgi apparatus
3. RER
4. both a and b

Q. Which among the following is incorrect with reference to lysosomes?

1. They contain acid hydrolases
2. They are autophagic
3. They can digest proteins, lipids but not carbohydrates
4. They are covered by a single membrane

Q. The action of peroxidases is countered by the enzyme

1. catalase
2. glycolase
3. glyoxidase
4. hydrolase

Q.

A series of membrane-enclosed channels studded with ribosomes is called

1. Lysosomes

2. Golgi complex

3. rough endoplasmic reticulum

4. mitochondria