Tag: life processes

Quizzes (46) Questions (8)

Questions Related to life processes

Multiple choice biology life processes guttation excretion in plants long distance transport of water

Waste products produced during respiration in plant is/are

  1. CO$ _{2}$

  2. Water

  3. Oxygen

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Like animals, plants also respire all the time because their cells need energy, to stay alive, but plants can only photosynthesize when they are in the light. Photosynthesis happens in the chloroplasts of plant cells. 
  • It produces glucose for use by the plant, and oxygen as a waste product. Respiration uses oxygen and produces carbon dioxide and water as a waste product.

So, the correct answer is option D.

Multiple choice biology life processes guttation excretion in plants long distance transport of water

Resin canals in Pinus are formed.

  1. By the separation of secretory cells

  2. By the destruction of secretory cells

  3. Partly by separation and partly by destruction of secretary cells

  4. By large intercellular spaces of the cortex of the stem
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Resin canals in Pinus are lysigenous or schizogenous in origin, but in the context of botanical anatomy, they are typically described as being formed by the separation of secretory cells (schizogenous).

Multiple choice biology life processes blood pressure circulatory system transportation in animal and plants

Normal systolic and diastolic value of blood pressure is

  1. 80/120 mm Hg

  2. 80/40 mm Hg

  3. 140/80 mm Hg

  4. 120/80 mm Hg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A) Blood pressure is always read as systolic/diastolic pressure. Systolic pressure is 120 mm Hg while diastolic pressure is 80 mm Hg.

B) The systolic pressure is 120 mm Hg while diastolic pressure is 80 mm Hg.
C) Systolic pressure is 120 mm Hg.
D) 120 mm Hg here, represents the systolic pressure and 80 mm Hg represents the diastolic pressure.
So the correct answer is '120/80 mm Hg'.

Multiple choice biology life processes blood pressure circulatory system transportation in animal and plants

Excess of Na++ ions in human system causes____________________

  1. Diabetes

  2. Anemia

  3. Low blood pressure

  4. High blood pressure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • The increasing of the concentration of Sodium ions in blood would attract water from the surrounding issues, because of the osmotic pressure.
The increasing of the total volume of blood makes the blood pressure higher.
Hence,

Option $D$ is the correct answer.