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3 years ago

Which molecule is used up in photosynthesis?

Biology

2 answers:

elena-s [515]3 years ago

6 0

Answer:

Energy from light

Explanation:

In photosynthesis, energy from the light is used to convert carbon dioxide and water into glucose and oxygen. For 6 carbon dioxide and 6 water molecules, 1glucose molecule and 6 oxygen molecules are produced.

hope this helps :)

Lera25 [3.4K]3 years ago

5 0

Answer: Carbon dioxide and oxygen

Explanation:

The molecules that is used in the process of photosynthesis is carbon dioxide and water. These molecules are used by the plant cell to convert it into glucose and oxygen is released as a by-product of this reaction.

The chlorophyll found in the leaves of the plant traps sunlight and the whole process occurs there.

Hence, the molecules used in photosynthesis is carbon dioxide and water.

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what is a light year? Explain why light-years are used to measure distances and sizes in the universe

Neko [114]

A Light Year is a mesurement of 5.879e+12 miles Compressed into one unit of mesurement or a "Light Year"

Light Years are used in the measurement of the universe because, to put it simply, SPACE IS BIG! The use of Light Years (5.879e+12 miles) Breaks the observable universe down into manageable chunks for astrologists.

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3 years ago

as compared with the production of egg cells, sperm cell production A) involves a jellylike outer covering b) occurs at a slower

Bingel [31]

The correct answer is: d) begins later in life

Eggs or female reproductive cells are formed well before birth in a huge number (primordial oocytes). But, the number of oocyte decreases after birth constantly (there are 2 million oocytes at birth and 40,000 of them in puberty). At menopause, no egg cells are left.

On the other hand, the first sperms are formed only from puberty, but the production of those cells never stops.

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3 years ago

When muscles contract, they become .

Vsevolod [243]

Smaller in size, thicker.

When muscles contract literally each of the cells decrease in size so does the whole muscle. Like when u contract ur biceps.

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3 years ago

Gradualism is a slow, continuous process while is a sudden less frequent

Nookie1986 [14]

If gradualism is a slow, continuous process, then the sudden less frequent process is punctuated equilibrium. This refers to the hypothesis about development by evolution where there are isolated occurrences of fast changes in between extended stages of slight or no change.

8 0

3 years ago

Match the cell adhesion or junction with the appropriate choice. Drag the terms on the left to the appropriate blanks on the rig

pav-90 [236]

Answer:

The missing options are:

A) protein subunits associated with gap junctions.

B) a type of adhesive junction connecting an epithelial cell to the basal lamina.

C) collection of fibrous intracellular attachment proteins.

D) create a permeability barrier.

E) button-like points of strong adhesion between two cells.

F) hollow cylinders associated with gap junctions.

G) type of adherens junction connecting cells with the extracellular matrix.

H) intermediate filaments associated with plaques.

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments.

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms.

L) point of cytoplasmic contact between two cells.

M) anchors cytoskeleton of one cell with that of a neighboring cell.

Set of answers are:

A) protein subunits associated with gap junctions. Conexin

B) a type of adhesive junction connecting an epithelial cell to the basal lamina. Hemidesmosome

C) collection of fibrous intracellular attachment proteins. Plaque

D) create a permeability barrier. Tight junctions

E) button-like points of strong adhesion between two cells. Desmosome

F) hollow cylinders associated with gap junctions. Connexons

G) type of adherens junction connecting cells with the extracellular matrix. focal adhesion

H) intermediate filaments associated with plaques. Tonofilaments

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments. Adherens junctions

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms. Cell junctions

L) point of cytoplasmic contact between two cells. Gap junction

M) anchors cytoskeleton of one cell with that of a neighboring cell. Adhesive junction

Explanation:

Connexin: is a transmembrane protein that forms the gap junctions, they are also called gap junctions proteins.

Hemidesmosome junctions: these types of junctions are in the epidermis, specifically between the epithelial cells and the basal lamina of the epidermis.

Plaque: they are part of the adherens junctions, they are fibrous proteins that are attached to certain points of the extracellular matrix.

Tight junctions: are junctions between two epithelia, they are very restrictive and do not allow the passage of soluble molecules creating a permeability barrier.

Desmosomes: are very strong cell to cell junctions on the lateral sides of plasma membranes. They are in tissues that are under mechanical stress, such as the cardiac muscle.

Connexons: is a pore made of six connexin proteins in a gap junction. Connexons are the ones that connect two cells in gap junctions.

Focal adhesions: They connect the extracellular matrix with the cell, regulatory signs and mechanical force is transmitted through them.

Tonofilaments: tonofilaments are the ones that are associated with a plaque in adherens junctions, they are in epithelial tissues.

Adherens junctions: are cell to cell junctions where the cytoplasmatic face is connected to the actin cytoskeleton. They appear as spots forming the plaque or as zonula adherens, which are actin bands around the cell.

Cell junctions are protein complexes that connect two cells that are next to each other or a cell with the extracellular matrix. They have a lot of functions, such as pas information from cell to cell, or the exterior, form a barrier, synchronize cells, etc.

Gap junctions: are connections between the cytoplasm of two cells, molecules and, ions pass directly from one cell to the other.

8 0

3 years ago