1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
butalik [34]
3 years ago
7

Desacribe an experiment to prove that carbon dioxide is essential for photosynthesis ?

Biology
1 answer:
disa [49]3 years ago
4 0
Take two healthy potted plants. Keep them in a dark room for 2-3 days. Now place each plant in a separate glass. Get a cup containing potassium hydroxide by the side of the plants (the potassium hydroxide is used to absorb carbon dioxide). COver both plants with separate jars. Seal the jars so that the set-up-is-air-tight. Keep the plants in sunlight for two hours. Gently pluck a leaf from each plant. remove the chlorophyll from the leaves by boiling them in alcohol. Wash the leaves with water and then pour iodine solution over them.

We can conclude that the photosynthesis cannot be carried out without carbon dioxide. the leaf from the plant (which was the jar containing potassium hydroxide, which absorbed the carbon dioxide) turns blue black on iodine solution showing that starch is presented in this lead.

so this shows that carbon dioxide is necessary for the processs of photosynthesis to take place
You might be interested in
What are the variables in carrying capacity​
mestny [16]
Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space
4 0
3 years ago
Extinction of organisms is a relatively recent phenomenon attributed primarily to man.
Otrada [13]
The correct answer is false. Extinction of organisms is not solely cause by man. Even way before, extinction is already happening. It can be caused by natural or human causes. Natural causes includes volcanic eruptions, earthquakes, floods, etc.
6 0
3 years ago
Read 2 more answers
It can be seen on a cladogram that modern birds and reptiles share a common ancestor. Select the piece of evidence that best sup
garri49 [273]

The evidence supporting the idea that modern birds and reptiles share a common ancestor is that feathers are a derived characteristic that first evolved in reptiles. Feathers represent an evolutionary derived trait.

In evolutionary biology, an autapomorphy is a distinctive phenotypic trait referred to as a derived trait, which is unique to a particular group/taxon.

The derived traits are phenotypic features that arise during the evolution of a particular taxonomic group.

These traits (derived traits) differ from the phenotypic trait of the ancestor of the group.

Learn more in:

brainly.com/question/3406200

7 0
2 years ago
Read 2 more answers
Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? A. An onion cell con
USPshnik [31]
The correct answer is "C".

Onion cell is a plant cell and human cheek cell is an animal cell. Hence, onion cell has a cell wall<span> but not in human cheek cells because animal cells do not have cell wall. Both cells have single nucleus. Since, human cheek cell is an animal cell, chloroplasts are cannot be seen in the human cheek cells.</span>
5 0
3 years ago
Read 2 more answers
1. results in no motion of the object because forces are equal and in opposite directions
sammy [17]

Answer:

Balanced Forces

Explanation:

When the forces acting on an object have equal strength and act in opposite directions, they are balanced.When the forces acting on an object are unbalanced, they do not cancel out one another.

8 0
3 years ago
Other questions:
  • About what percent of u.s. adults are either alcohol abusers or alcohol dependent?
    5·1 answer
  • Which of the following can affect the function of a cell?
    5·2 answers
  • There are five general stages in the family life cycle.<br> a. True<br> b. False
    14·2 answers
  • Which best describes sensory and motor neurons?
    13·1 answer
  • Based on the parents' genotypes, what is the genotypic ratio expected from a monohybrid cross between the two parents for the tr
    10·1 answer
  • Which of the following is a substance that is found between the cell membrane and the nucleus, which primarily consists of water
    7·1 answer
  • Neuronal communication is a two step process. In the second step, which takes place between two neurons, what does the arrival o
    15·1 answer
  • The clinical divisions of the abdomen divide the abdominopelvic region into four quadrants. A person having a gallbladder attack
    13·1 answer
  • The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well
    14·1 answer
  • Describe 2 reasons why seafloor spreading and subduction must be occurring at the same rate.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!