Life Processes-1

1. Which of the following organ systems is responsible for transporting oxygen and digested food to every cell in the human body?

• 1. Digestive System

• 1. Respiratory System

• Circulatory System

• 1. Excretory System

What is the name of the most abundant protein found in nature, which is present in the chloroplasts of plants?

• Melanin

    

• Keratin

     

• Actin

• RUBISCO

12. How does cytokinesis, the division of the cytoplasm, differ between animal cells and plant cells during mitosis?

    

• Animal cells form a cell plate, while plant cells divide by constriction.

   

• Both animal and plant cells form a cell plate.

    

• Plant cells form a notch that gradually deepens, while animal cells form a cell plate.

    

• Animal cells form a notch at the equatorial plane that deepens, while plant cells form a cell plate along the midline.

4. In the process of glycolysis, which occurs in the cytoplasm, one molecule of glucose is oxidized step by step to primarily form:

• Acetyl-Coenzyme A, NADH2, and CO2

    

• Lactic Acid and 2 ATP

• Alcohol, Carbon Dioxide, and 2 ATP

    

• Two molecules of pyruvic acid, ATP, NADH2, and water

In human beings, mitosis is necessary for:

• growth and repair of tissues

• formation of the gametes, or sex cells

• reproduction of another individual

• reducing the number of chromosomes

Tags

NGSS.HS-LS1-4

Our muscle cells perform _______ type of respiration during exercise.

• Aerobic

• Anaerobic

• Fermentation

• Krebs Cycle

A molecule of glucose is completely oxidised in aerobic respiration and molecules of H2O and ________are

produced along with energy.

• CO2

• O2

• NaOH

• HNO3

We get _______ kcal energy per gram of proteins.

• 4

• 3

• 2

• 1

We get of energy from one gram of lipid.

• 4 Cal

• 9 Cal

• 4 kcal

• 9 kcal

Glycolysis and _________ are two steps of anaerobic respiration.

• Kreb's cycle

• Electron transfer chain reaction

• Fermentation

• Reduction