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
Oksana_A [137]
3 years ago
5

QUESTION 2

Biology
1 answer:
ASHA 777 [7]3 years ago
7 0

Answer:

Carbon dioxide

Explanation:

Xylem and phloem are the two conducting tissues of a vascular plants. They are referred to as vascular bundles. Xylem and phloem are responsible for conducting certain substances from one part of the plant to another.

The xylem is responsible for conducting WATER AND DISSOLVED MINERALS from the root of the plants to other parts e.g leaves, stem, flowers etc. while the phloem conducts sugar (product of photosynthesis) e.g glucose from the leaves of the plant to other parts including the stem, root etc.

According to this question, xylem or phloem does not conduct or carry gaseous substances like carbon dioxide (CO2).

You might be interested in
In its role as an antioxidant, _____ guards cell membranes, body proteins, dna, and cholesterol, and thus helps prevent heart di
vodka [1.7K]

Answer:

The answer is Vitamin E or α-tocopherol.

Explanation:

Vitamin E is a <u>fat-soluble</u> vitamin is first absorbed in the small intestine and is then <u>stored at the liver</u>. It is an <u>antioxidant</u> which <u>protects cells from free radicals or reactive oxygen species (ROS)</u>. It can also prevent bad cholesterol from depositing in the blood vessels.

Vitamin E can be <u>naturally found in nuts, seeds, and vegetable oils</u>. As a dietary supplement, it takes the form of  α-tocopherol. The RDA depends on the age of the person, as it may range from <u>4 mg to 15 mg per day</u>.

<u>Vitamin E deficiency is so rare</u> that it will only occur if the person has a <u>fat malabsorption illness like Crohn's disease, abetalipoproteinemia</u>, etc. Symptoms of deficiency include <em>muscle weakness, retinal degradation, peripheral neuropathy, and an immunocompromised state</em>.

7 0
3 years ago
Identify the theory that is fundamental to all organisms
jonny [76]
The cell theory is fundamental to all living things. 
4 0
3 years ago
What is the dietary iron of food sources not associated with hemoglobin called?
photoshop1234 [79]
Hello!

I believe the correct answer would be: Nonheme Iron.

I really hope my answer helped you! :)
7 0
3 years ago
Most functions of a prokaryotic cell are controlled by the cell's nucleus. True or false?
Anton [14]

Answer:

Prokareotes have no neucles so false

Explanation:

7 0
3 years ago
Read 2 more answers
g protein-activated inwardly rectifying potassium channels mediate depotentiation of long-term potentiation
Svetlanka [38]

Long-term potentiation (LTP) is considered a cellular correlate of learning and memory. The presence of G protein-activated inwardly rectifying K(+) (GIRK) channels near excitatory synapses on dendritic spines suggests their possible involvement in synaptic plasticity. However, whether activity-dependent regulation of  channels affects excitatory synaptic plasticity is unknown. In a companion article we have reported activity-dependent regulation of GIRK channel density in cultured hippocampal neurons that requires activity oF receptors (NMDAR) and protein phosphatase-1 (PP1) and takes place within 15 min. In this study, we performed whole-cell recordings of cultured hippocampal neurons and found that NMDAR activation increases basal GIRK current and GIRK channel activation mediated by adenosine A(1) receptors, but not GABA(B) receptors. Given the similar involvement of NMDARs, adenosine  receptors, and PP1 in depotentiation of LTP caused by low-frequency stimulation that immediately follows LTP-inducing high-frequency stimulation, we wondered whether NMDAR-induced increase in GIRK channel surface density and current may contribute to the molecular mechanisms underlying this specific depotentiation. Remarkably, GIRK2 null mutation or GIRK channel blockade abolishes depotentiation of LTP, demonstrating that GIRK channels are critical for depotentiation, one form of excitatory synaptic plasticity.

Learn more about receptors here:

brainly.com/question/11985070

#SPJ4

8 0
2 years ago
Other questions:
  • The membrane proteins that change shape and bind with specific molecules to transport them across the cell membrane are ________
    9·1 answer
  • In the chapter, transformed Mycoplasma cells are identified because they produce a blue color. There are other ways to identify
    9·1 answer
  • Which of the following expresses why water is so important to living organisms?
    11·2 answers
  • Valence is the number of electrons and atom must gain or lose it ordered to
    12·2 answers
  • Energy in an ecosystem _____.
    6·1 answer
  • Describe a procedure that you would use to localize the protein dynein
    10·1 answer
  • Meiosis is important for sexual reproduction because it gives sex cells (gametes) what unique feature?
    10·1 answer
  • Which of the following is not an embryonic stem cell?
    7·2 answers
  • How can fracking impact water quality? (1 point)
    5·1 answer
  • Cuales son los proveedores de correo electrónico wedmail mas usados y porque​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!