are fairly small organelles that provide a safe place within the cell to carry o
ID: 195502 • Letter: A
Question
are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate hamful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location (a) Nucleosomes b Lysosomes c)Peroxisomes (d) Endosomes 2. Substrate molecules bind to enzymes at the A) allosteric sites 8) active sites C) reaction sites D) modification sites E) none of the above 3. The is made up of two concentric membranes and is continuous with the membrane of the endoplasmic retculum (a) plasma membrane (b) Golgi network (c) mitochondrial membrane (d) nuclear envelope 4. Protein production is a function of the A) microtubules B) mitochondna. C) rough ER D) nbosomes E) Golgi apparatus 5. True or False Lysosomes are small organeliles where fatty acid synthesis occurs. A True False 6. Most intracellular vesicles are formed by A) the endoplasmic reticulum B) the Golgi apparatus C) ysosomes D) mitochondna E) nuciedliExplanation / Answer
Question: 1. ______ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate hamful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location
Answer: c) Peroxisomes
Peroxisomes are small membranous vesicles found in cells that contain digestive and detoxifying enzymes. Certain biochemical reactions that occurs within the cell produce harmful reactive oxygen species such as hydrogen peroxide as a by-product. Hydrogen peroxide is dangerous to cell, but peroxisomes that contain the enzymes catalase, which breaks down hydrogen peroxide in to harmless water and oxygen.
Question: 2. Substrate molecules bind to enzymes at the ______.
Answer: B) Active sites
Substrate molecules bind to enzymes at the active site and undergo chemical reaction. It is the binding site for catalytic and inhibition reactions of enzyme and substrate.
Question: 3. ______ is made up of two concentric membranes and is continuous with the membrane of the endoplasmic reticulum.
Answer: d) Nuclear envelope
The nuclear envelope that surrounds the nucleus is composed of two concentric membranes, called the inner and the outer nuclear membrane. The inner membrane is surrounded by the outer nuclear membrane and the membranes are penetrated by nuclear pore complexes. The outer nuclear membrane is continuous with the membrane of the rough endoplasmic reticulum and usually covered with attached ribosomes.
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